The Engineering and Mining Jonrnal

VOL. LXXXII. NEW YORK, JULY 28, 1906. NO. 4.

Pnbliabed Weeklj In France, the production of aluminum Ferro-Alloys.—The production of ferro- 505 PEARL STREET, NEW YORK in 1905 was hampered by strikes among silicon, ferro-chrome, ferro-manganese, London Office: 30 BncklerebiUT, London £. Eng. the work-people at La Praz works, and ferro-tungsten and ferro-titanium is now SiJmcriplion, payable in adeanee, $5,00 a year of 52 by the attention given to the newer elec¬ carried on at many works in Europe and nuin’iere, intimling postage in the United States, Canada, tric steel processes. America. In Europe, Keller Leleux & Mexieo, Cuba, Porto Sico, JIairaii or the Philippine*. At Niagara Falls, the Pittsburg Re¬ Co. (at Kerrouse and Livet), the Societe To Foreign Countries, inriuding postage, $8.00 or it* duction Company celebrated the loth an¬ electro-metallurgique Francaise (at La equiratent, S3 thilUngs; 33 marks; or 40 j'ranrs, niversary of the commencement of the Praz and St. Michel), and the Girod Xotice to ditrontinue should be tcritten to the Xew York ofire in every instanre. manufacture with a fire which damaged Courtepin is producing ferro-tungsten. its plant to the extent of $10,000. As re¬ the chief producers by the electric-furnace Advertising eopy should rearh Ifew York qfire by Thursday, a ireek before date of issue. gards utilization, the various applications methods; while Goldschmidt & Co. pro¬ Copies are on sale at the neies-stands of ike following of aluminum, in metallurgy and in ther¬ duce the alloys at Essen, by the aluminum- • hotels;—Waldorf-Astoria, New York; Brmvn Palave, Denver; mite, have attracted most attention dur¬ reduction process. The first-named firm and the leaditq) hotels in the principal cities. ing the year. is reported to be producing 250 ions of Copjrright, 1906, by Calcium Carbide.—This industry is de¬ ferro-silicon, and 80 tons of ferro-chrome The EMOixEEBiHa and Mihino Jocrkau veloping slowly in most countries, but it per month; while the Girod Company at Entered at New York Pos< Office a* mail matter of has not yet attained the position of im¬ Courtepin is producing ferro-tungsten. the second cUss. portance mapped out for it by the earlier In America, the Willson and Cowles

During 1905 The Enoineebing & Mining pioneers. Marmier, a French authority, companies are the leading producers of Joi'UNAL printed and circulated 454,250 has estimated the present world’s produc¬ these special alloys. Rossi has carried copies, an average of 8735 per issue. Of this tion and utilization to be as follows; out many experiments at Niagara Falls issue 8000 copies are printed. None sent upon the production of ferro titanium regularly free. No back numbers beyond cur¬ rent year. from' titaniferous iron ore. The electric- furnace method of production has been Electrometallurgy in 1905. Country. discarded in favor of one based on the

Works. Goldschmidt aluminum-reduction process, In Tons. In Tons. Production

BY JOHN B. C. KERSHAW. Consumption the titaniferous ore in a finely-divided Her many. 17 12.000 18,000 state being fed into a bath of molten 8 Introduction—No striking discoveries Spain. 3 S,600 5,500 aluminum. This method is said to yield U. S. and Canada. 11 18,000 16,000 good results. marked the progress of the electro-metall- France. 14 14,000 14,000 Scandinavia. 8 11,000 1,500 Iron and Steel.—Considerable interest lurgical industries during 1905. Steady Italy. 6 20,000 17,000 progress was, however, made in some di¬ England. 1 1,260 3,600 has been aroused in America by the elec¬ Argentina. 1 1,000 2,600 rections. In the electrolytic copper-re¬ tric iron and steel processes, and trials fining industry, in the electric furnace Total. 68 82,760 78,009 are now being made with the Heroult processes for refining iron and steel, and furnace and process at Syracuse, N. Y. The aggregate output is estimated at in the electric lead and zinc industries, and at Sault Ste. Marie, Ont. The trials go.ooo tons, while the 68 factories have a marked advances were made. at the latter place relate to the smelting producing capacity of more than double riie manufacture of special alloys of of iron ore in the electric furnace; if this amount. The price of calcium car¬ iron (ferro-chrome, ferro-tungsten and successful, they are expected to lead to bide remains low (in France the factory ferro-vanadium) for use in the production an important development of the Canadian price is $40 per ton) ; and that the in¬ of the highest classes of tool-steel and iron industry. dustry is not very profitable is shown by armor plate also developed, though to In Europe the French works named the fact that the Company owning the a less extent; the manufacture of ferro- in the paragraph under ferro-alloys are carbide works at Jaice, in Bosnia, has been silicon is another healthy branch of all producing special brands of iron and compelled to go into liquidation. electrometallurgical industry. Electric steel by the Heroult process. Arrange- welding, and the use of acetylene gas for Copper—The year 1905 was marked by in Sweden there is also a plant producing blow-pipe w’ork, are promising minor de¬ a striking development in the electrolytic- steel by the Heroult process. Arrange¬ velopments of the chief industries. refining industry in America, many of the ments were made during 1905 for starting Aluminum—No official figures are avail¬ refineries having been remodelled and en¬ the Heroult electric steel industry in Ger¬ able relating to the output in 1905. larged. The aggregate production of the many, and works will shortly be in opera¬ Unofficial estimates place the total be¬ .\merican refineries is stated to have tion at Remscheid. A plant has also been tween 8000 and 9000 tons. In Europe doubled during the last six years; and, started at Plettenberg for trial of the Gin the prospects of the producing companies according to the published figures, the furnace and process. The Kjellin induc¬ improved during the year, and both capacity of the electrolytic refineries is tion furnace and process continues to the English and German companies pre¬ now nearly equal to the whole of the operate at Stockholm, and a trial is to be sented favorable financial reports. The annual output of raw copper. made of this method of steel production latter returned a profit of 2,012,587 In Europe the position as regards the in Switzerland, a 500-h.p. furnace being marks, and paid a dividend of 18 per cent.; refining industry is stationary. A new now in course of erection at the carbide while the former reported a net profit of process for producing molded articles in works at Gurtnellan. £35.411. Both companies are extending copper was introduced during 1905. These Lead.—The Betts refining process is their water-power rights and develop¬ are molded in clay, coated with black working satisfactorily at Trail, British ments; the Neuhausen company is taking lead, and then coated with copper by Columbia, and the plant has been extended up the manufacture of calcium carbide electro-deposition. The results are said during 1905. There are now 82 vats at this works, each vat is 7 ft. long x 30 in. and electric steel. to be good, and the cost of the finished articles is lower than by the older meth¬ wide, and when fully charged contains 20 *Con8uIting and analytical chemist, Water¬ ods. anodes and 21 cathodes. Herr Senn (a loo, Liverpool, England. 146 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

German University student) investigated area of supply, Goldschmidt, of Elssen, has ing the first ii months of 1904, 1316 tons the chemistry of the Betts process, and patented a method for rendering refuse of zinc was produced by this process. A published his results in the Zeits. f. Elek- tin cans and vessels available for the company has been formed in Belgium to trochemie. He finds that almost complete detinning operations. This patent re- aid the financial development of the de separation of lead from copper, bismuth lates to a machine for compressing and Laval process, and negotiations are in pro- and cadmium can be attained, by use of perforating the old cans. In England two gress for its introduction into America, the impure lead as anode, in a bath of of the smaller companies engaged in this The zinc produced by the de Laval fur- lead fluo-silicate. industry went into voluntary liquidation nace and process is of exceptional purity, Locke, Bleckett & Co. of Newcastle, during 1905; and Goldschmidt reports that and competes easily in quality and price England, has decided to erect a lead re- the works at Essen find increasing com- with the purest brands of zinc made by finery on the Betts system, and is ar- petition as regards purchase of the scrap the older metallurgical process. The fur¬ ranging to work up the slimes obtained used as raw material of the detinning nace of Sarpsborg is reported, however.

CONVERTERS. TILTING FURNACE FOR CASTING ANODES. TACOMA COPPER REFINERY. from the vats, by a new process recently process. Mennicke has been investigating to be using only spelter and other forms patented by Betts. the possibilities of the Betts process, as ap- of impure zinc; it remains to be seen Nickel.—There is nothing new to report plied to tin refining, and finds that the whether the de Laval furnace and process concerning the extraction or refining of difficulties of the process are greater than can be applied successfully to the re¬ nickel by electrolytic methods; until a in the case of lead. duction of ordinary zinc ore. market can be formed for the very pure Zinc.—The Swinburne-Ashcroft zinc- Electro-galvanizing did not make any nickel obtained in this way, there would extraction process is being worked at the marked progress during 1905, but Burgess appear little chance for these methods to Castner-Kellner alkali works, Weston has reported in favor of the electrolytic develop satisfactorily. The electrolytic Point, England. The plant has a capacity method of applying zinc coating to copper-refining industry, both as regards of 30 tons ore per week. Metallic zinc, iron. the market for the refined copper, and the is, however, not produced here, a good - value of the recovered impurities, is in market being found for the zinc chloride. The United State general appraisers, quite a different position from the nickel- Zinc is produced by the Hoepfner electro- New York, June 27, 1906, held that sul- refining industry. lytic process, at the neighboring Winning- phur invoiced as “refined ground” and Tin.—^The development of the electroly- ton works of Brunner, Mond & Co., but “refined roll” and containing 99.8 and tic detinning industry is hampered to some no details of the output can be obtained. 99.5 per cent, of pure sulphur is to be extent by the difficulty of obtaining ade- The de Laval electric-furnace distillation classed as refined sulphur and is dutiable quate supplies of the raw material for process is reported to be working satis- at $8 per ton under paragraph 84 of the the vats. With a view to widening the factorily at Sarpsborg in Norway. Dur- Tariff Act of 1897. July 28, 1906. THE ENGINEERING AND MINING JOURNAL.

The Tacoma Copper Refinery. furnace is employed for the reduction of About 2000 h.p. are utilized in the concentrates. These are received from various departments. The current is BY DAY ALLEN WILLEY. British Columbia, Alaska, California, Ore¬ transmitted to the works at 40,000 volts, gon, Mexico, and Central and South but it is reduced in the works to 100 The Tacoma plant is located about six America. The matte averages from 45 volts. Besides the use of electric cur¬ miles from the city on the shore of Puget to 55 per cent, copper. The slag is tapped rent in the electrolytic department, all of Sound, giving it transportation facilities into ladles, by which it is carried to the the machinery in the works is operated by which allow material to be received by casting machine, which is revolved by a electric power. The tramway about the water as well as by rail. Oil is used 20-horse power electric motor. The mol¬ works is served by motors developing 7 extensively for fuel. It is obtained from ten matte is also tapped into ladles, by h.p. Incidentally it may be remarked that southern California by barges and tank which it is carried directly to the two in connection with this plant has been steamship. Within 40 miles of the smel¬ converters. The matte is blown by 3500 erected one of the highest chimneys yet ter, however, are some of the most exten- cu.ft. of air per minute to each converter. constructed of reinforced concrete. As

THE SLAG DUMP. SLAG-CASTING MACHINE.

1 111

ELECTROLYTIC VATS. sive coal mines of the Pacific Northwest. The furnace for casting the anodes is of the works are partly surrounded by high The copper reduction department was the rotary type, heated by fuel oil. It is hills, to carry away the fumes it was ne- constructed under the supervision of B. also served by an electric traveling crane cesary to erect a stack 306 ft. in hight. H. Bennetts. Some of the apparatus from the converter. After the metal This is situated 1000 ft. from the fur¬ was designed by Mr. Bennetts especially has been melted, it is cast into anodes nace. for these works. One noteworthy fea¬ averaging 125 lb. in weight. Originally the Tacoma works were ture is a circular slag-casting machine In the electrol}rtic department the erected for the reduction of lead ores, for intended to do away with much of the cathodes are removed from the vats by which they have a capacity of about 300 ordinary labor required to break up and an electric traveling crane of 20 tons ca¬ tons daily, the output of metal being in remove the slag. The machine is pro¬ pacity, loaded on cars and returned to the neighborhood of about 1000 tons per month. vided with 144 tilting molds and has a the furnace department, where they are r ■ total capacity of 20 tons. It is situated at melted and cast into ingots, cakes, etc. the side of the building where the fur¬ The average daily output of the works is Letters of recommendation should be naces are installed, and is served by an 30 to 43 tons. The daily capacity of the brief and definite, one, positive statement electric crane, which removes the ladles ore-smelting reverberatory furnace is 350 of what you have done being worth a as fast as filled by the slag spout and tons. dozen glittering generalities. Former em¬ empties them into the molds, thus doing The Tacoma plant secures its electric ployers are the strongest references you away with the necessity of hauling the current by long distance transmission can gfive; teachers are the next best; slag from the furnace by tram cars. from the generating station at Electron, friends, relatives and acquaintances carry At the Tacoma works a reverberator^ Wash., in the foothills of Mount Rainier. the least weight. 148 THE ENGINEERING AND MINING JOURNAT.. July 28, 1906.

The Chibogomo Region in Quebec. of McKenzie bay and Paint Mountain pect to find in all the serpentines of that island of Chibogomo lake, where they ex¬ period chromium, which has already been The report of the Bureau of Mines of tend westward across the northern part indicated by chemical analysis. Quebec gives some interesting extracts of Dore lake. A small area also occurs “Among the specimens submitted to me from the paper prepared by A. P. Low for at the south end of the first lake expan¬ by Mr. McKenzie, I noticed small stain.s the Geological Survey of Canada, on the sion of the Chibogomo river, below Uore of native copper in the chloritic schists newly explored region in northern Que¬ lake. accompanying the thick vein of aurifer¬ bec, lying just south of the Right of The large masses of diabase and dia¬ ous quartz on Portage island. A speci¬ Land, and around lakes Chibogomo, base-schists, away from their contact with men of magnetic pyrite from Portage Obatagamo and Abitibi. Referring to the the gabbro and granite, do not appear to island, analyzed by A. Moscovici, who economic geology, Mr. Low says that the carry large quantities of sulphides, nor accompanied the Chibogomo Minine Com¬ Chibogomo region is underlain chiefly by have these ever been found sufficiently pany’s expedition as chemist, gives 0.39 igneous rocks, and the deposits of eco¬ concentrated to make workable deposits; per cent, of nickel and distinct traces of nomic minerals appear to be largely con¬ thus, it would appear that little attention cobalt. This variety was found only in fined to one class of these, that is, to the need be paid to prospecting them. small quantities, but it is interesting, diabase 'and to its alteration products— Throughout the region small quartz because it presents a certain analogy with green schists and serpentine—together stringers and gash veins are numerous in the same ore from Sudbury. with its associated conglomerates and the dark-green rocks, but as a rule they “A great many prospecting licenses arkose, all of probable Lower Huronian hold very small quantities of sulphides, have been taken out in this district, and age. and samples from several of the larger during last season a, certain number of The large masses of newer gabbro and veins gave, when assayed, only faint traces prospectors went over it. In consequence granite are not, in themselves, well min¬ of gold. of a report made by J. E. Hardman, the eralized, but they both appear to have These notes are given to indicate to the exploration syndicate who had sent him been important factors in the deposition prospector the most promising' localities out acquired Portage island and Asbestos and concentration of ores in the diabase in the region in which to search for island from the government and was and diabase-schists, which they cut. In minerals. organized under the name of the Chibo¬ this respect the gabbro appears to have Briefly, gold has been found free and gomo Gold and Asbestos Company, Ltd., been the more active and it is in the associated with pyrite on Paint Mountain with P. McKenzie as manager. neighborhood of contacts between it and island in Lake Chibogomo, copper “During the winter of 1905-06 several the diabase that the greatest quantity of pyrites in small veins on Dore lake and small syndicates were organized, and the sulphides of iron and copper were noted. Wakonichi lake; galena on Lake Mistas¬ government granted a subsidy towards In all probability, therefore, any large sini. Specular iron ore has also been found the , making of a winter road to Lake deposits of these minerals will be found in small outcrops. The existence of Chibogomo which makes the transporta¬ in proximity to such contacts and atten¬ asbestos in considerable quantities has tion of provisions easier. It is probable tion may be drawn to the contacts between been proved. that the district will be well prospected these rocks in the region stretching west¬ As at present situated, 205 miles from during the coming season.” ward from the northeastern part of the end of the railway by the easiest Chibogomo lake across to Asinitchibastat route, the profitable mining of the Chibo¬ Slate Quarrying. lake, and also to the contacts of the dia¬ gomo asbestos is out of the question, but, base with the gabbro on the north side of with a railway built to the shores of the Opemiska and Mikwasach lakes. Asbes¬ lake and w'ith a reasonable amount of Assuming that the commercial value tos has been found in all the areas of capital, there is little doubt that several and the grade of fissility of the slate itself serpentine discovered to date and there of the areas of asbestos-bearing serpen¬ have been fully determined by scientific is little doubt extensions of these areas tine, if worked economically, would yield and practical tests, says T. Nelson Dale, will be found both to the east and the good profits even against the added rail¬ of the United States Geological Sur¬ west of their known occurences about way haul to market. The present cost ot vey, the opening of a quarry offers serious McKenzie bay. transport by canoes or by winter hauling problems. These concern the thickness The association of conglomerate and from Lake St. John to Chibogomo may of the deposit and of the weathered “top.” arkose beds with diabase and similar vol¬ be taken at 150. a pound. With a road the character of the jointing, the presence canic rocks bears a close resemblance to cut directly through the bush, winter of faults, shearzones, and dikes. There the occurrence of these rocks in the area haulage would probably reduce this price are also the practical matters of drainage, about Timiskaming lake, where the small by one-half, but even then it is doubtful of the location of dumps, of transporta¬ rich veins of silver, nickel and cobalt have if any active mining could be carried on tion facilities, and of fuel. been found. Up to the present time, no at a profit in the best of the mineral The cost of slate at some quarries is such deposits have been located in the deposits as yet found in the region. Ac¬ increased by the necessity of removing Chibogomo region, but characteristic tive work in the mines there must await the dumps of former workings, which, small veins of specular iron ore occur in the building of a railway to the shores of for lack of capital or of good judgment, these rocks, as well as small quantities of Chibogomo lake. , were placed on good slate. Sometimes copper. The silver and associated ores of Mr. Obalski, who has explored the the only way to remove these old dumps cobalt are perhaps unique, and are prob¬ region extensively, adds to Mr. Low’s is to throw them into the quarry on one ably due to certain conditions of which we statements: side and hoist them up at the other. In at present lack all knowledge. These un¬ “I would call the attention of places where the beds are steeply in¬ known conditions may exist at places in prospectors to the possibility of finding clined or vertical, as the quarry deepens the wide area of conglomerate rocks about platinum in that region. That metal one of the walls falls in and the removal Wakonichi lake, but this can only be frequently accompanies eruptive rocks of of this material entails great expense. determined by close prospecting for the the serpentine class. In my exploration The percentage of waste is generally small but rich veins. It is thought well of 1904, several times, while panning high in slate quarrying. It is estimated to call attention to the presence of these debris from Portage island, I found very that the waste in the Peach Bottom re¬ rocks about the northeast bay of Wako¬ fine colors of a native white metal pos¬ gion is as high as 88 per cent. In the nichi, and also along and extending west¬ sessing all the physical characteristics of Maine quarries it is also large, owing to ward from its southwest shores, as well platinum, but which I could not ascertain the frequent interbedding of the slate as on the islands and part of the shores by chemical analysis. One may also ex¬ with quartzite. July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 149

Cyanide Practice at the Liberty pass 100 mesh. The lube mills take ap¬ to one of ore, is discharged through cen¬ Bell Mill) Telluride, Colorado. proximately 55 per cent, of the mill pro¬ tral bottom discharge valves to the six duct, or 95 tons each per 24 hours. agitators. BY W. E. TRACY. The slimes and tube-mill discharge are The agitators are 17 ft. in diameter by passed over a second set of amalgamated 11 ft. to the top of the 45-deg. cone, and 1 he process recently installed at the plates, six tables taking the product from hold 35 tons of dry ore per charge. Suf¬ Liberty Bell mill consists of the follow¬ one tube mill. The pulp from these ficient cyanide in solution is added to the ing: Coarse crushing by stamps in a tables passes through spitzlutten to the charge to raise the solution strength to weak cyanide solution, followed by amal¬ settlers, the oversize being elevated and 1.5 lb. per ton. The pulp is agitated for gamation ; re-grinding the sand in tube returned to the tube mills. 12 hours, and is then discharged by a centrifugal pump to an equalizer tank, from which it is drawn as required to the loading tanks of the Moore plant. The Moore plant contains two loading aixi four displacing tanks. There are four baskets, each containing sixty-six 6 x8-ft. plates, giving 6336 sq.ft, of filtering surface per basket. Twenty-ounce duck is used on the filtering frames. The baskets are raised and lowered by two 30- ton hydraulic cranes. A motor drive has recently been added to the cranes to facil¬ itate transferrence of the backets be¬ tween loading and displacing tanks. The pulp in the loading tanks is kept from settling by air-lift agitation. Each bas¬ ket remains in the loading tank one hour, during which time about 16 tons of solu¬ tion arc drawn through the filters and a Jf? in. cake is formed with a vacuum of 17 to 19 in. The solution drawn, some¬

LIBERTY BELL MILL. what turbid at first, clears up after the first few tons have passed. The basket mills; passing the re-ground sand over a Lime is added to the pulp in sufficient is then transferred to the displacing tank second set of amalgamated plates, and quantity to insure the solution being where the gold-bearing solution is dis¬ treating the combined slimes and re¬ slightly alkaline when it reaches the placed by water, an intermediate weak ground sand by agitation, the solution be¬ second plates, after passing through the solution being used. The cakes leaving ing recovered by the Moore filter process, and returned to the battery storage tank after passing through zinc boxes. 'I he ore is a decomposed quartz con¬ taining a large amount of clay and talc, the sticky nature of which prevents fine crushing before being fed to the batteries. The mill contains eighty 850-lb. stamps. Solution (i lb. KCN per ton) is fed to the batteries in the proportion of four parts solution to one part of ore. Four¬ teen-mesh No. 22 iron-wire screens are used at present and the stamp duty is 4.3 tons per 24 hours. The battery pulp is classified by two Dorr scraping sizers, the sand product being fed to the tube mills. There are three Abbe tire-type tube mills equipped with spiral feed. Cast-iron tires and rollers proved altogether too soft and have been discarded in favor of rolled steel, which is proving entirely good. VIEW LOOKING UP THE GULCH. The spiral feed is proving very satis¬ factory in practice. Linings, at first 2.5 mill. High alkalinity has a bad effect on the loading tank contain about 33 per in. thick, laid flat, have been replaced the plates, making them hard. cent, of moisture. About 75 per cent, with linings 4 in. thick, which promise a There are five settlers, each 33 ft. in of this solution is drawn in from 30 to year of life. Imported flints are used diameter by 10 ft. 8 in. effective depth, 40 minutes after the basket is transferred and are fed to the mills daily at the rate slightly coned at the bottom. After set¬ to the displacing tank, with only a trace of about 1.3 lb. per ton of ore ground tling about 14 hour.s, appro.ximatcly one of dilution. This solution, together with Each mill is driven by a SO-h.p. induction half the solution is decanted. Decanting the water entering the mill in the ore. motor. is begun before the settling is complete, serves to keep the volume of solution con¬ The sand fed to the tube mills by the the pulp being followed down by the de¬ stant. When the solution from the Dorr sizers contains about ii per cent, of canting hose, so that little extra time is vacuum pump begins to show dilution it slimes and 45 per cent, moisture. Of the required for this operation. The remain¬ is directed by a swinging nipple into a discharged product 88 to 90 per cent, will ing pulp, consisting of two parts solution weak solution launder, from which it 150 THE ENGINEERING AND MINING JOURNAL. July 28, 1906. passes through the weak solution zinc operation during the summer, and which and carried through a concrete tunnel. boxes to waste. The values fall off is designed to replace some of the older It has been a feature of this mill that rapidly after this point, the average time and less economical plants, as well as to all 'machines are set on solid and inde¬ of displacing being about one hour and increase the total tonnage treated. pendent foundations, there being only a 20 minutes. Displacing is discontinued Work on the new mill began in June, small amount of subsidiary shafting, etc., when the discharge from the vacuum 1905, and it is expected that it can carried by the steel superstructure. pump titrates 0.35 lb. KCN per ton. This be turned over in about 14 months from These jig tailings are crushed to leaves from 5 to 7c. dissolved values in that time. It will have a normal capa¬ 5 mm. size; elevated in one, of two, 24-in. the cake per ton of dry slime, and about city for 700 tons per day. It will treat elevators, and passed through one, of 3c. in cyanide. Water at 10 lb. pressure ores from the Humboldt mine, which lies two, second Hancocks. Middlings from is then turned into the baskets and the beneath the town of Morenci. This mine this latter are returned through the cake blown off under water in the dis¬ contains an enormous body of sulphide same. Tailings from it go to two, of placing tank. ore, running about 3 per cent, copper. three, Huntington mills, and are re-ground The strong solution from the Moore Ore will be loaded into cars at the to 1.5 mm. size. This product is then filters is combined with the decanted solu¬ mine; from there its progress to the mill treated on one, of two, Hancock jigs of a tion, and passes through a clarifying is automatic. It will run on a trestle to third set. The middlings from these filter to the zinc boxes. This filter con¬ four 2SO-ton steel tanks above the crush¬ “third jigs” go to Wilfley tables; tailings sists of an inverted Moore basket of 20 er house; in this house are two Blake from the same are divided into two frames placed in the gold tank, and re¬ (18 X 36 in.) jaw-crushers. Ore feeds to classes, of which the oversize goes to one, moves all traces of slime. The weak these through hoppers set above griz of two, Huntington mills. Pulp from solution is perfectly clear when drawn zlies; the grizzley bars have a differential these joins the fines, and is elevated in from the Moore plant. motion, slow forward and fast up and one, of two, 24-in. elevators, and classi¬ There are 12 five-compartment zinc back; this is for better feed and distribu¬ fied into three sizes. The coarse size goes boxes, each compartment containing 20 tion. Undersize ore passes beneath the to 17 Wilfleys; the fines to 33 vanners. cu.ft. of zinc. Ten boxes are used for jaws, oversize through them, and both The intention is finally to treat all Wilfley strong solution and two for weak. The drop on a set of grizzley bars 10 ft. long, and vanner products once more; room strong solutions average 1.2 to 1.3 lb. the oversize from which passes to has been left in the mill for this equip¬ KCN per ton; the weak solutions 0.75 rolls. The undersize goes beneath; ment. to 0.8 lb. Some difficulty was experi¬ both pass to a 42-in. belt conveyor, and up Tailings from the mill, after going enced at first in securing good precipita¬ to the top of the mill. No. 1 ore is picked through an automatic sampler, will be tion from these dilute solutions, but since off the second set of grizzley bars. classified into two sizes; fines will go to the installation of the clarifying filter the Each side of this crusher-house runs 24 reinforced-concrete tanks (each 16 ft. precipitation has been good. The filter independently, and either side is sufficient deep and 9.5 ft. inside diam.) with con¬ is blown off every two or three days and to supply the mill with 1000 tons of ore ical bottom sloping 53 deg. These tanks cleaned with a brush, the operation re¬ per day, its full capacity when running are reinforced by expanded metal and cor¬ quiring about two hours. heavily. Each side is run by one 75-h.p. rugated bars; the walls are 5.5 in. thick. The greater part of the extraction in motor. This plan of duplication is carried This seems an unnecessary strength for the mill, aside from values saved by amal¬ through the entire mill in order to have the work to be performed, but I noticed, gamation, is obtained above the agitators, a plant that will not have to shut down. wherever concrete is being used in that the tube mills proving very efficient ex¬ An inclined belt, 318 ft. long, carries the part of the country, the same unusual tractors as well as re-grinders. product of the rolls to the mill. strength as though in anticipation of This ore-dressing is peculiar in that at some much more severe strains than were Arizona and Sonora—IX. no point of the concentration can the pro¬ generally to be expected. In these tanks duct be classed as waste, and drawn off. the walls of the circular bins also form BY DWIGHT E. WOODBRIDGE. The mineral is so finely disseminated that smaller tanks. Their overflow, clear The Arizona Copper Company. not until it reaches the final vanners water, is pumped back to the mill. Every¬ About 8s per cent, of the ore mined by and tables is it sufficiently elimin¬ where at this mill, as well as at others in the Arizona Copper Company has a cop¬ ated to tail it off. This not only makes the district, great care is exercised in sav¬ per tenor of 3 per cent.; and 95 per cent, the treatment difficult, but it also requires ing all water. At this mill it comes, by of all ore mined is put through the con¬ a sufficient vanner-and-table capacity to steam and turbine, from the San Francisco centrators. The company is mining 2000 treat, as fines, all ore entering the mil|. river 1500 ft. below. Pumping is done by tons per day. Its Coronado mine body is This fact will explain certain peculiarities three Worthington 2-stage centrifugal a vast deposit, blocked out for 2200 ft. in of construction and equipment. pumps; one (a “spare”) is direct con¬ length, and developed to a depth of 1000 Ore entering the mill is dropped into nected to Westinghouse induction mo¬ ft., it is supposed to be about two miles two so-ton steel-tank bins. It is fed out tors. in length. The company has mines at by two automatic feeders into two out of Thickened pulp from the tanks will Morenci and Metcalf; it has connections, three trommels. The first two sheets on join the coarser from prior separations, by a series of six gravity trams, railways these trommels are punched with and be led to a settling reservoir. This and inclines, between the various mines holes; the product goes to one of two is a circular concrete tank (130 ft. in¬ and concentrators and the smelter at Gif- Hancock jigs. The third trommel-sheet side diam., and ii ft. deep), divided into ton. The company employs 2700 men. has ^-in. holes, and will feed Harz jigs. four compartments, each capable of hold¬ This company has five concentrators in Oversize is reground in one of two 16 ing 4000 tons. Each compartment is pro¬ operation, the capacity of each of which X 42-in. rolls; it is elevated in one of vided with a draining system and a fil¬ varies from 200 to 400 tons per day. That two elevators; and returned to the trom¬ ter-bottom, through which the remain¬ at Longfellow is the newest and largest. It mels. Tailings from the Hancock jigs go ing water will be taken off. This water is stated that tailing loss is only 0.72 to Huntington mills; middlings are re¬ will be pumped back to the mill by one, per cent, which is surely remarkably good turned over the jigs. Tailings from the of two, electrically-driven triplex pumps. practice, everything considered. The Hancock join the Harz-jig tailings, and The material left will be drained as well company is now building at Morenci a are treated in three, out of four, 6-ft. as possible and permitted to dry. new and fine mill, which should be in Huntington mills, all set on concrete A revolving cantilever crane is to sit 'Mining engineer, Duluth, Minn. foundations, and with shafting lined in. in the center of the reservoir, and by July 28, 1906. THE ENGINEERING, AND MINING JOURNAL. ISI

means of a 2.5-ton clamshell bucket, will Power for this mill will be coal or oil. Mining in Cordoba, Spain. excavate the dry tailings. These will be All other plants in the vicinity use pro¬ loaded into two 150-ton bins at the foot ducer-gas engines, but it has been de¬ According to a recent British consular of a two-track incline, of 35 deg. These cided that raw fuel will be better here. report, the growth in the output of silver bins will also be fitted with filter-bottoms; There are three 250-h.p. Stirling boilers, and lead ores was general throughout the their water will go back to the triplex set in a steel house. The coal bunkers different districts of this province in 1905. pumps. are built to utilize the vertical side of the The only copper producer is the im¬ Ihe now well dried pulp will be drawn mountain as a part of their walls. The portant Cerro Muriano group of mines, into two five-ton skips (running in bal¬ main engine room, (which is in the mill which lies near the city of Cordoba, where ance), and will be hauled above the mine itself) will contain a 250-h.p. Nordberg the Roman workings have been success¬ track at the end of the mill, into large cross-compound engine (12 x 22 and 36 fully bottomed on one of the main lodes, storage bins. From these it will be hauled in.) to drive the Hancock jigs, the Hun¬ which is now being rapidly opened up, and back to the mine and utilized as gob for tington mills, the elevators and the will shortly be provided with a dressing filling mined-out stopes. So far as I recrushing rolls. The electrical machin¬ mill and smelter. The 301 tons of cop¬ know, this is the only place in America ery will be driven by another Nordberg per pyrites shipped, containing from 15 to when this method of filling the mine (run at 125 r.p.m.) direct connected to a 20 per cent, of copper, proceeded from the opening has been undertaken. General Electric Ck>mpany’s 240-kw. gen¬ preparation galleries. The hoist for drawing up tailings is a erator (3-phase, 25-cycle, 440-volt). This The wolfram mine at Montoro is now Wellman-Seaver-Morgan direct-acting en¬ operates the various motors. The lights producing regularly, though on a very gine, in which there are some new inter¬ and the crane (which latter runs in day¬ small scale; the ore, however, is very esting features. Valves are of the stand¬ time only) are operated by a high-speed valuable, and the owner states that he ard Corliss rotating type, but provided Ball engine, direct connected to a 75-kw. makes a good profit. This ore goes to with a simplified valve-gear. In this gear, generator (60-cycle, 2-phase, 220-volt). Germany. the releasing mechanism, together with The mill will be lighted throughout by The two smelters in this province have dashpots, has been eliminated, and the Nernst lamps, which is an interesting fea¬ been busier than ever last year, as may be connections from wristplate to valve- ture, and one that will be appreciated by seen from the following returns: arms are direct and fixed. This construc¬ concentrator employees, to whom the Quantity. 1903. 1904. 1906. tion does away with the steam hook arm, need of good light is constantly proved. Tons. Tons. Tons. releasing hooks, dashpots, springs, etc., The mill is set on the solid rock of British lead works at Cordoba- of the regular Corliss releasing gear. Modoc mountain, and 5500 cu. yd. of Ores smelted (from Linares). 6,726 9,269 11,410 Thus positive operation is secured concrete has been used in its foundations. Pljt lead— under all conditions, and with no limi¬ All machines in the works (except part of induced. 6,068 6 497 7,621 Shipped via Malaga— tations as to speed; there are fewer the Wilfleys and vanners) are set on To U nited Kingdom 3,720 6,988 6,760 To Portugal. 776 867 641 wearing parts and fewer adjustments re¬ concrete beds. All shafting on thft up¬ Ores smelted. 48,220 66,000 quired. At the same time, a wide range per floors is carried in concrete tunnels; French lead works at Penarroya— of cut-off is obtained, while the advan¬ where it is hung to the steel work, special Pig lead, produced. 28,640 33,000 38,000 Sliver, produced... ’l.oei.WS *2,326 701 *2,164,098 tages of early cut-offs have not been provision has been made against vibra¬ * Oz. troy. sacrificed. By retaining the independ¬ tion. All heavy machines in the plant The ores smelted at Penarroya come ent steam- and exhaust-valves of the Cor¬ are covered by geared trolleys of the from the provinces of Cordoba, Badajoz, liss engine, it is possible to secure high Brown type, for convenience in hand¬ and Ciudad Real, and the product is efficiency and economy of operation. The ling. shipped at Seville. engines are 14-in. diameter, with 30-in. The plans of this mill were drawn by stroke; the valve gear is fitted with C. D. Clark, and the plant is being con¬ Pyrites Production of Huelva, Spain. steam-operated link reverse. The drum is structed under his supervision. All steel of the cylindro-conical type, this style of structures are by the American Bridge According to a recent British consular drum being used to give a large starting Company. report, the export of iron pyrites (washed torque, which facilitates starting the load. The Arizona company’s smelting ore) from the Huelva district increased The small-diameter of the drum is 4 ft. works at Clifton make an odd looking considerably in 1905, and of this class 6 in. and is for four turns of the rope; outfit; it seems almost impossible that alone 580,000 tons were shipped, chiefly while the large-diameter is 6 ft. Each the company should be able to do the ex¬ to the Netherlands, Germany, France, half of the drum is designed to hold 350 cellent metallurgical work that it does. and the United States, in addition to ft. of i^-in. rope. The enpnes are de¬ The works are badly arranged, but neces¬ consumption in Spain. The total shipments signed to hoist (with skips running in sarily so, on account of the constricted lo¬ during the year were as follows: balance) a net unbalanced load of 9000 lb., cation in the bottom of a box canon that Quantity. at a maximum speed of 700 ft. per min¬ is flooded with every hard rain. The Shipper. Pyrites. Precipitate. Tons. Tons. ute, and with 160 lb. steam pressure. The number of men employed is large, and KloTliito Company, Ltd_ 984.696 12.122 drum is fitted with steam-operated post¬ the cost of handling material must be a Tharsls Company, Ltd. ;180.733 , 2,762 Socl^W des Pyrites. 160.000 brakes under control of the operator. The large item. There are six furnaces of the Pena del Hierro mine. 142,912 San Miguel mine. 3.168 933 operations of the hoist are controlled by usual type whose slag is claimed to av¬ Tlnto and Santa Bosa mine. 38,606 803 Sotlel Coronada mine. 3,686 71 two levels, one of which operates the erage only 0.35 per cent, copper. There Thomas Morrison & Co., Ltd. 1,273 10 brake, while the other operates the throt¬ is an acid plant, whose product is utilized Various. 41,781 667 tle, reverse and cut-off. in leaching low-grade oxide ores, the Total. 1,786,764 18,067 Concentrates from this mill are all fed, operation of which is conducted secretly. by gravity, into three, out of six, lOO-ton Power is afforded by gas-producer en¬ The exportation of ores from Algeria settling bins, arranged on both sides the gines, of which there are many. The during the first quarter of 1906 was as fol¬ incline; the concentrates are hoisted matte runs about 55 per cent, copper, lows : Department of Algiers: Iron ore, to bins above the mine track, drawn off and is blown to bessemer copper in the 44,685 tons; lead, 523; zinc, 1,411. Oran: into small cars taken through a tunnel in same building. Iron, 83,307; copper, 13; lead, 4; zinc, the big hill to the Longfellow incline, and 1.327. Constantine: Phosphates, 81431; thence by the narrow-gauge (Coronado The cubical mixer, for concrete, gives iron, 35, 444; copper, 612; lead, 2,703; zinc, railroad to the smelter at Gifton. excellent results. 10,974. 152 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

Ore Milling in Wisconsin. ation in mill practice. In the smaller The chats from the end of the jig mills, only one eight-cell jig is fenerally come from the screens of tne STAFF CORRESPONDENCE, used, while in the larger ones two jigs last two cells and in the hutch of the last are used. These are generally seven- cell. Generally a clean lead is made on The ores of the Wisconsin zinc-lead dis¬ compartment jigs; one of them is used the first one or two cells of the rougher, trict are of two general types: The sheet- for roughing and the other for finishing. and an iron sulphide and zinc blende ore, which is remarkably free-milling, and Still other mills have tables and in that “smittem” on the next cell. the disseminated and spangled ores, which case the undersize from the 3/16 screen The chats and “smittem” both go to the are quite “chatty” in character, i.e., they goes to a Galena type of classifier which is chat elevator and return to the chat roll. require finer grinding to free the particles specially adapted to the ore found here. In almost all cases the mills depend on of jack from the dolomitic limestone par¬ The slimes from this go to the table, using the water over again, and for this ticles adhering to them. while the sands go to the cleaning jig. reason the overflow from the settling tank WET concentrating. These jigs are of the Cooley type and is caught in a settling pond. Practically all of the mills of the dis- are fitted with a settling compartment at A small centrifugal pump is generally used to pump the water back again to the mill, where it is added at different points, but more largely at the jigs. The capacities of the different types of mills are given below, together with their estimated cost of erection:

Capacity. Horse¬ Tons of Cost Type of MU). jaclc power Re¬ Installed. quired.. per 10 hrs. Eight-cell jig ' 40 40 $6,SCO

Two 7-cell jlgt 60 60 $6,800

Two 7-ceIl jlgf $7,000 and two tablet- 65—70 65—70

The mills generally run only a day shift of ten hours, but where they are using a roaster, the mill usually has to run two shifts to keep the roaster supplied

JOPLIN SEPARATING W'ORKS, GALENA, ILL. with ore. trict have been built by a local company, the Galena Iron Works, and are there¬ fore of the same general type. This is due to the facts that Galena works can readily furnish repairs and that they put out a class of machinery which is well suited to the needs of the case. This machinery does the work satisfac¬ torily, for the ores are soft, and high- grade machinery is not required. The rock breakers are all I5x7-in. Blake crushers. The rolls are almost universally 24-in. slow-running, geared. One roll is wider than the other and has a flanged face, so that the narrower—15 in. wide— runs inside the flanges of the wider. A stream of water is often sprayed against the face of the flanged roll, to keep it clean where the ore is clayey, as is the ROASTER HOUSE, TRIPOLI MILL. case above the oil rock. Water is also the end. The jig screens discharge There are generally three men on a fed with the ore to the breaker, so that through a gate valve to buckets set on a shift: The feeder ($1.75 per day), who all crushing is done wet. These rolls run shelf on the side of the jig. The chats manages the crusher; the jig man ($2.50 from 14 to 25 r.p.m. from jigs go to an elevator which empties to $3.50 a day) ; and the wheeler ($1.75 to From the first cornish rolls, the ore goes into a trough leading to the chat rolls. All $2.50 a day), who helps the jig-man and to a main elevator which may range, ac¬ the machinery is driven from one over¬ wheels the concentrates to the bins. cording to the size of the mill, from 12 to head line shaft. The throw on the jigs The concentrates draw off into tanks in 20 in. wide. The buckets are generally varies from about ^ in. on the lead end to front of the jigs. The excess water drains placed 20 in. apart. This elevates the ore I in. on the zinc end. off, and the concentrates are wheeled to to the top of the building where it goes The screen varies from to 3/32 in., bins where the moisture is further reduced to a 36x72-in. trommel. Perforated and is generally perforated sheet, more to about 3 per cent. screen is used, the opening varying from rarely wire cloth. Of course the concentrates vary great¬ % in., as at the Phoenix mill, to in., as In some cases, where the ores carry con¬ ly, depending upon the amount of iron at the Wicklow. In case there are two siderable galena, a separate lead jig of sulphide in the ore. There is generally sets of jigs, then this trommel is dou¬ three or four compartments is used, as at about 2 per cent, lime in the zinc concen¬ ble, the first opening being generally 3/16 the Empire and the Kennedy mills. The trates, and from a trace up to 3 per cent, in., and the second, %in. The prevailing compartments on the roughing jigs are lead. The lead concentrates are excep¬ size used in the one-jig mill is %in. generally 36x40-in., while those on the tionally clean, being practically pure lead After the trommel, occurs the first vari- cleaner are 30X36-in. sulphide. Tables are used only when July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 153

•the ore carries much lead. In some ture too high. This would bum out and The roasted ore from the calciners is cases where the ore is very chatty, they use warp the top baffles. It is hoped that, by generally sprinkled with a small amount a third set of rolls. using a variably speed to rotate the top of water, to cool it, and is then carried

MAGNETIC SEPARATION. baffles, this difficulty can be surmounted. either by a screw conveyor, a paddle con¬ This process consists of two stages; The Trego furnace consists of a fire-box veyor or a chain-scraper conveyor to a Roasting, followed by treatment of the and a dust-catching chamber between bucket elevator. The amount of water calcined ore upon magnetic separators. which is a dome-shaped kiln. On the cir¬ added to the ore is so regulated that it In this field, the product submitted to cular hearth of this the ore is stirred and will all be driven off by the heat and the magnetic separation consists of wet con¬ fed forward by a system of revolving rab¬ ore be perfectly dry when it reaches the centrates from jigs and tables, which bles. The ore feeds in at the center and separators. The ore going under the carry zinc and iron sulphide in varying discharges from the side of the hearth. A magnets is generally too warm to hold amounts. Roasting drives off about one- later design has a revolving hearth, the comfortably in one’s hand. third of the sulphur and renders the iron rabbles being stationary. The ore can be Before sending the ore to the magnetic magnetic. roasted in about 20 min. Several of these separator it is sized by passing it through Roasting can be done in any good furnaces have been tried in the district. a trommel, one screen having j4-in. openings, the other having j4-in openings. The sizes are kept separate, each going to a bin holding about five tons. One size and then the other is fed to the separator, as this permits a better saving than by treating the fine and coarse together. The roll feed, also, on the Cleveland-Knowles separator, is not adapted to feeding an ore having fine and large lumps together. Two magnetic separators are in regular use in this field, the Cleveland-Knowles and the Dings. The Cleveland-Knowles has been run for several years and has proved itself, while the Dings is new and is yet used at only three places in the district. The Cleveland-Knowles is too well known to need a description. The Dings has a low intensity field, and has two

roaster but, owing to the small tonnages treated in this district, an expensive furnace like those used for roasting sulphide ores in western smelters is out of the question. The Wetherill separator has never been used in this field. It was stated, at the Mineral Point Zinc Works, that some ore from this district was tested in a Wetherill, and gave poor results. If so, it must have been due to a poor roast. The royalty and the higher first cost keep the Wetherill out of the field. Roasting is the most important step in the process. A too strong roast will cause some of the sulphide to become smeared with partly fused and oxidized iron sul¬ phide particles which will cause a heavy GALENA CLASSIFIER, ENTERPRISE MILL. loss of zinc in the middling product. Three roasters have been experimented with in Several Trego roasters are just now be¬ magnets, a rougher and a cleaning mag¬ this district: The Dings, the Trego and ginning to run, and after six months or net. An illustrated description of this the Galena. The Galena alone has as yet more one can tell more about the merits separator was given in this Journal, April established itself as a success. Two di¬ of the furnace. The Trego furnace is 21, 1906. It has been run side by side vergent systems are represented: A slow, somewhat cheaper than the Galena. with a Geveland-Knowles, at Mineral low roast, or a quick, high roast. The The Galena roaster has proved the best Point. Apparently they do about equally Galena calciner operates on the former adapted to this district. Its principle is a good work. principle, while the other two have at¬ slow roast, for it takes the ore from 2j4 The Cleveland-Knowles and the Dings tempted a quick roast. to 3 hrs. to go through the kiln. It has separator use about the same amount of The Dings roaster was a vertical stack been run for over two years in some mills, power. having a series of horizontal, revolving and has not required any great expense The magnetic separators are run so as baffle plates, and stationary shelves to keep for repair. The Galena roaster consists to make the iron contents of the discharg¬ the ore from falling directly through. This of a dust chamber and a fire-box con¬ ing zinc product as low as possible. The furnace was tried at the Tripoli mine near nected by a brick-lined iron cylinder rotat¬ amperage is regulated so that about equal Mineral Point, but had to be torn out. ing on tires by means of a gear wheel. bulks of material come off each magnet. The difficulty came in regulating the heat This cylinder is about 22 ft. long and The voltage is generally quite low—in the in the top of the furnace. The sulphur about 52 in. diameter. About 7.5 h.p. neighborhood of 100 volts. would get on fire and raise the tempera¬ is needed to rotate it. A middling product comes off the second THE ENGINEERING AND MINING JOURNAL, magnet and it becomes a question what to from $i to $2 per ton of the finished pro¬ Improving Iron Ore Roads. do with it At the mills, this is generally duct, varying with the tonnage treated returned to the rolls in the wet concen¬ and the zinc contents of the raw ore. The Duluth & Iron Range road has tration plant, but whether a good saving At the Mills mine, near Hazel Green, completed the last of its double-track line results is not known; however, at the a large concentrating plant is being erect¬ between its docks at Two Harbors and Enterprise mill, at Platteville, there has ed, and a new method of magnetic sepaia- the end of its Mesabi main line at Eveleth. been a lowering of the iron average in tion is to be tried. The concentrates will This gives it about 75 miles of double the finished zinc product from the mag¬ be roasted in a Trego calciner and, when track, and covers all its ore traffic except netic separators. cooled, passed over an improved Wen- the 2,000,000 tons it is moving off the The zinc product from the different strom separator. A clean zinc product Vermillion range, this being handled over separators throughout the district aver¬ free from iron will be made, but in doing a single line as far as the Mesabi junc¬ ages about 59 to 6o per cent, zinc, and this, quite a little zinc will be drawn up tion point. Now all three of the Mesabi carries about 3 per cent. iron. The saving with the iron. The impure iron product ore roads are double-tracked their en¬ by magnetic separator is probably about will then be passed by a shaking con¬ tire length, though that of the Great 80 per cent, of the zinc value. The mid¬ veyor under a series of waving magnets. Northern is composed of two single lines dling product probably averages between This will remove the iron and leave the several miles distant from each other.

JIGS AT THE HIGHLAND MILL.

7 and 10 per cent, zinc at the different zinc in a fairly pure conditon. Two of the roads are troubled by a lack mills, and the tailings carry about 5 per All the elevators and bins in these mag- of cars, the Great Northern especially so; cent. zinc. There is a decrease in the per- netic separating plants are built of iron, the Duluth, Missabe & Northern and the centage of lime in the finished ore, partly The magnetic plant is generally located Duluth & Iron Range both booked their through dusting of the lime in the furnaces in a separate building, to take advantage equipment orders early last year, and

Blake,Crusher Tfoininel

?<« Screen Cornish Rolls 24* x|115* Oversize Undei'size py'Overeize Undersize

Cornish Classifier Rolls Slimes

Roughing Jig Tank Ovtrstrom Tables Tails

Clean Clean " Clean Lead J^ead c Zine

Cleaning Jig TYPICAL WISCONSIN Tails tsinittum Chats lead-zinc mill Clean Representing the more elaborate Jack System. GALENA ROASTER, ENTERPRISE MILL. and partly because some of the lime has of lower fire insurance premiums. These those for the first named were very large, enough iron in it to be separated by the plants are run continuously, stopping only from which it is now deriving great ben¬ magnets. on Sunday, and a plant requires two men efit and comfort, while shippers along its The cost of magnetic separation ranges per shift to run it. line are warm in their appreciation. July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 155

The Vulcan Tin Mine, North Since its purchase by the present com¬ £128,470, out of which sum dividends were Queensland. pany this mine turned out, up to the end paid to the extent of £58,850, equal to 210 of 1903, 5,964 tons of black tin, of a value per cent, on the paid-up capital of the The Vulcan mine at Irvinebank, Her- of some ^220,000, from above a depth of company. berton district, North Queensland, has 800 ft. For the first five years during The Vulcan Tin Mining Company’s cap¬ developed recently as one of the most im¬ which the large orebody, from the sur¬ ital amounts to £44,000 in 44,000 shares of portant tin lode-mines of the world. It face down to the i8o-ft. level in the shaft, £i each, but only 14s. pd. paid up, making has surpassed, both as a tin producer and or 260 ft. below the outcrop, was being the company’s paid-up capital £28,233. dividend payer, even the famous Mount worked, the ore averaged about 15 per During the twelve months from February Bischoff mine in Tasmania. During 1905 cent, of black tin for about 17,000 tons of I, 1905, to February 21, 1906, the tin stone its production was at the rate of 130 tons stone. Since then it has averaged about mined attained an average of 10 per cent, of black tin per month. The following 9 per cent, of tin for about 38,000 tons of black tin, the 11,317 tons tin stone yield¬ description of the mine is from a report stone. ing 1114 black tin, assaying 65 per cent, by Walter E. Cameron, assistant geolo- The Vulcan stone showed up to metal. The sum realized for these 1114

gist of the Queensland Mines Department. .August, 1903, an average of 10.9 per tons tin ore was £74,028, out of which The outcrop is near the eastern edge of cent, of black tin for about 55,000 tons of £38,500 was paid in dividends, equal to a belt of greywacke, which strikes roughly stone. The great size of the orebodies and 13s per cent, for twelve months. north and south, and stands almost ver¬ the richness of the ore in this lode has al¬ tically. The lode has been worked to a lowed of its being worked almost continu¬ In general underground work, the use depth of 800 ft. from a vertical shaft sunk ously to the 600 ft. level, notwithstanding of iron columns or bars, to which the on the edge of the gfreywackes, about 150 that the lode has been several times com¬ rock-drill is fastened by clamps, clips, ft. southeast of the outcrop of the lode, pletely lost, and only found again by per¬ etc., is decidedly the best. The use of and by levels driven from the shafts at sistent prospecting at great expense. the single-screw bar or column in stopes, depths of about 100 ft. apart. Since August 14,1903, until February 21, The size and shape of the orebody vary 1906, the mine has produced 25,300 tons of drifts, etc., of small dimensions is prefer¬ greatly at different levels, being on an av¬ tin stone, yielding 2305 tons black tin, as¬ able. In large excavations the double¬ erage about 40 ft. in length by 20 ft. in saying on the average 65 per cent, metal, screw column, with swinging arm upon breadth, but of very irregfular section. It the tin stone containing an average of 9.1 which the machine is mounted, is good, has a general dip to the southwest at a per cent, black tin. The net amount re¬ and has many valuable advantages aux¬ steep angle. alized for these 2305 tons black tin was iliary to cheap mining. 156 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

Miniog at Tonopab. Practically all the ore from Mizpah and The remainder is shipped to the smelters Valley View veins is oxidized. The near Salt Lake. In the future the com¬ BY CLAUDE T. RICE. Tonopah company employs about 200 pany will ship to its loo-stamp Cyanide men. The Silver Top and Mizpah shafts mill at Miller’s crossing, about 15 miles TONOPAH MINING COMPANY. produce about 200 tons of ore a day, from Tonopah. The company expects to The Tonopah Mining Company is the which averages about $60 a ton. treat 400 to 500 tons of ore a day in this oldest and largest of Tonopah. It owns The Tonopah-Belmont Development mill when everything is running properly. the outcrop claims on which the original Company, which is an allied company of This mill will be completed by the middle locations were made by Jim Butler. These the Tonopah Mining Company, and is of summer.

TONOPAH, NEVADA, LOOKING

contain two main veins, viz., the Mizpah under the same management, is mining WEST END MINING COMPANY. and the Valley View, between which is a ore from the eastward extension of the This company also struck ore to the system of branching and interlocking Mizpah lode, where it has been buried by west of Mizpah hill, sinking 290 ft. veins, called the Burro veins. The Burro the later andesite. This is worked through the capping of andesite. Levels veins have been developed only to a small through the Desert Queen shaft, 1,127 ft- extent, being much less important than deep. The average width of the vein in have been opened at 400 ft. and at 750 the others. the Belmont mine is well over 10 ft. The ft., the latter being the present depth of The Valley View' and the Mizpah vein dips 60 deg. to the north and strikes the shaft. Ore has been developed only veins each show an ore shoot 1,000 ft. east and w'est. Stoping is going on at the on the 408 ft. level, where a large and long. They vary greatly in width, being 900 ft. level in the Belmont. The Belmont rich vein has been struck, which proba¬ as much as 25 ft. wide for 100 ft. or so then narrowing perhaps to only i ft., and then sw’elling out again. Also the ore varies greatly in grade, but it is seldom too lean to work. The Mizpah vein dips 45 to 80 deg. toward the north; the Val¬ ley View about the same. The veins are mined by a system of stull-timbering and overhand stoping. Levels are opened at loo-ft. intervals, vertically. Chutes are carried up about 30 ft. apart along the vein where it is be¬ ing stoped. Heretofore very little filling has been done, but from now on the stopes will be filled with waste. Small air drills (2-in. Ingersolls) are used in stopmg, while 2%-m. Ingersolls are used for devel¬ opment work. Flat ropes and reel hoists are employed, TONOPAH E.XTENSION SHAFT. with one-deck cages. There are two main employs about 100 men and ships about SO bly is the extension of the Valley View. shafts, viz., the Mizpah and the Silver tons of ore a day, averaging between $60 This vein has been developed 200 ft. on Top. The Mizpah has two hoisting com¬ and $70 a ton. each side of the shaft. On the east side partments; the Silver Top has only one. All the veins in both the Valley View it dips steeply to the south, while on the Variable-speed, electric hoists are used. and the Mizpah systems are much faulted, west it dips steeply to the north. The On the Valley View vein the deepest and the following of the ore is compli¬ developments indicate that the vein var¬ stoping is upon the soo-ft. level. Most of cated; much prospecting work is neces¬ ies from 20 to 40 ft. in width, and the the stoping has been done betweeh the sary. ore is expected to average $70 a ton. 500- and the 200-ft. levels; above the ^00- At all the mines under the management Spalling and sorting is done at surface. ft. level the vein is virgin, except for some of the Tonopah company, four grades of Four to six men are employed at sorting. shallow working during the leasing pe¬ ore are being made. Above $100 a ton is They are paid $4 for eight hours, the same riod. On the Mizpah a great deal of first class; $30 to $100, second class; $20 as miners. The company employs 28 stoping has been done above the 200 ft. to $30, third class; while fourth class is men and at present produces about 120 The deepest stoping is on the 600 ft., but that which is too low-grade to pay now. tons of ore a month, averaging $70 to some prospecting is being done on the About fifty tons of the ore is shipped to $100 a ton. The ore was discovered last 700 ft. level. the Butters Cyanide plant at Virginia City. October, and since then, the company has July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 157 shipped about 500 tons. The ore is sorted much broken up by faulting all this length below the fault has been found and fol- into first and second class. The latter is not in ore. The vein dips about 45 lowed down to an intermediate level be- (which goes under $30 a ton) is stored deg. to the north. It varies from 6 to tween the 950- and loso-ft. The vein has on the dump, while the first class is 50 ft. in width, and is said to average been faulted like all the others of the camp, shipped to the smelters. about 13 to 14 ft. Machine drills are usea and it is hard to follow it at the fault MACNAMARA MINE. in the development work and in a few planes. This mine, which is the latest to strike of the stopes, but generally single jack- Stull timbering and single jacking are ore, adjoins the West End on the west, ing is employed in stoping. One 3-in. used in mining the orebody. The vein is and has the continuation of the West End and nine 2l4-in. drills are in use. Stull- very warm and appears to be hotter than

TOWARD ODDIE MOUNTAIN. orebody, but instead of being wide as timber stopes, with occasional pillars of can be accounted for by anything but a in the West End it is only 2 to 4 ft. wide, the poorer ore, keep the walls open. No rapid increase in the temperature of I his orebody was found about six weeks filling is done. the rocks with depth near Oddie moun- ago. It has been opened on the 300 ft The ore is a sulphide and contains gold tain. level and has been cut in several places and silver in the ratio of about 1.50. The The ore is sorted at surface after hav- along the vein. The company employs company employs about 125 men and ships ing been shoveled over a wire screen, of from 16 to 18 men and has already shipped about 90 to 100 tons of ore a day, aver- i-in. openings, to separate the fines, about 10 tons of ore. There is litiga- aging $80 to $100 per ton. Ore assay- Owing to the narrowness of the vein some tion between this company and the Tone- ing $35 to $40 a ton is the lowest grade of the porphyry is likely to get mixed pah Extension in regard to the apex of a shipped. Sorting is done both under- with the ore, and this goes more with the fines than the coarse. The fines are assayed and then mixed with the coarse so as to produce ore of about $60 per ton. Three men are kept sorting at the surface. The ore is shipped in sacks. The vein dips about 45 deg. to the northwest, and runs a little north and east. .\bout 23 men are employed. The company ships about 120 tons of ore a month, averaging about $65 per ton.

PROSPECTS. Much prospecting is going on further to the west of the Tonopah Extension and the Tonopah-Midway, in the hope of catching the veins by cross-cutting in the lode-porphyry after sinking through the capping of later andesite. The

HOISTING ENGINE. McKane iMining Company, has a shaft 1100 ft. deep, and is cross-cutting from vein which is opened on some of the lower ground and above ground, the sorting the bottom. I'lie Red Rock, The Golden levels of the Tonopah Extension. underground being very rough. .‘\nchor. The West Tonopah and the NORTH ST.\R MINING COMPANY. TONOPAH EXTENSION MINING COMPANY. Great Western companies are also pros¬ This company is mining to the north Phis company, sometimes called the pecting, and some mining is also going on Schwab company, is working the sup¬ and east of the town on * the side of in the Jim Butler group of claims. posed extension of the Mizpah vein on Oddie mountain. The shaft is 1050 ft. The mines at Tonopah appear to be the west, where it is capped by the later deep. Levels have been run at the 700, as strong and rich in depth as they have andesite, the company having sunk 225 950 and 1050 ft., but they show ore only been in their upper levels. Whether the ft. through the latter. The vein is on the 950-ft. This orebody is thought veins will extend much further west than worked by a shaft 615 ft. deep, which has to be an extension of one of the veins they have been developed at present is only two compartments down to the 500 of the Montana-Tonopah mine. The vein uncertain. The future of the camp de¬ ft. level, but three compartments below is from 2 to 6 ft. wide; the ore is of that level. It is opened up by five levels, good grade. It has been opened for 400 pends largely upon treating the lower on one of which it has been followed or 500 ft. and has been developed by a grade of ore, which at present is being for a length of 1160 ft. As the vein is series of raises 60 ft. high. The orebody stored upon the dumps. THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

The Blake-Denison Weighing Machine.

This automatic weighing machine was first introduced in connection with mining on the Witwatersrand and is now used by practically all the large mining companies in that district. It gives a positive check and record of the weight of the ores at the different stages of their treatment. The illustration shows one of the ma¬ chines of the New Kleinfontein Mining Company. A short length of the empty conveyor over which the ores pass, is suspended and balanced off. This balanced suspension is the platform of the scale. When the conveyor is in operation the weighing machine automatically takes a weight every time the conveyor travels the suspended distance. Thus if 10 ft. of the conveyor are suspended the machine weighs every lo-ft. length of the con¬ veyor successively, and as the tare weight of the belt and idlers are balanced off, only the aggregate net weights of the ore are recorded on the indicator. The ma¬ chine is driven by the conveyor itself and therefore any change in the speed of the conveyor means a corresponding change in the frequency of the weighings. Undue oscillation of the beam, which would otherwise be caused by change of load, is avoided by a patented mercury dashpot. The manner in which the hight of the beam is transformed into figures upon a recorder is this: The beam takes a position according to the weight on the SCALE BEAM AND RECORDING MECHANISM.

. Side Elevation End Elevation

THE BLAKE-DENISON WEIGHING MACHINE, OPERATING PARTS AND SUSPENDED CONVEYOR SECTION.

suspension. It is then gripped and held a distance that is proportionate to the of New York, and they will be a feature in that position while the curved quadrant hight of the beam. The beam is then re¬ of the new plants of the American Smelt¬ moves to the right until it comes into leased and takes a new position in accord¬ ing and Refining Company. contact with the beam—the higher its posi¬ ance with the weight on the next lo ft. tion when gripped, the greater being the of the conveyor. movement of the quadrant. The quad¬ Besides in the South Africa and Kal- “Creo-resinate” paving, first used in rant is then moved back to its normal goorlie mining fields, these .machines have New York on the Williamsburgh bridge, position, carrying a ratchet wheel with it, also been introduced in the Caucasus dis¬ is now being laid in many of the business this ratchet wheel thus turning on its axis trict by the Weston Engineering Company streets. THE ENGINEERING AND MINING JOURNAL.

Direct Cementation in Shaft ry of the pit down to the coal-measures ft. tubbed below it in a single length (Fig. Sinking.* at a depth of 492 ft. The expenses of sink- i). The rock is very solid, and the ing were practically the same for the two water-level occurs at a depth of 105 ft.

BY C. DINOIRE. pits, but it should be noted that the At 139.4 ft., at A in Fig. 2, water poured expenses of the wooden tubbing of No. in abundantly through four shot-holes. The Mining Society of Lens, decided 15 shaft were greater than those of Two suspended pumps, immediately put in October, 1904, to sink simultaneously the cast-iron tubbing of No. 16 shaft. into action, discharged 15400 gal. of two shafts. No. 15 and No. 16. In sink¬ Contrary to expectations, the sinking water per hour. At 142.7 ft., at B, a thin ing No. 15, serious water-difficulties were of No. 16 met with serious difficulties in bed, cut by the lower ends of the shot¬ encountered, and it was decided to use pumping. The feeders of water were so holes, gave off water through three large the freezing method. No. 16 was started great that the ordinary method of sink- channels, which converged and united by the ordinary method, as the company ing with the aid of pumps had to be toward the middle of the shaft. No. i had only one freezing plant, and the abandoned, and it was necessary to stop pump was replaced by a more powerful strata in which it was to be sunk were the feeders of water by direct cementation one, and the discharge of water increased not considered highly water-bearing. of the strata. In spite of delays, all the to 55,000 gal. At 145 ft, at C, a wedging

Depths Depths Feet Feet Feeders of Water per Hour JT^ Galloas

And Feeders of M ater

^ A pFUnta^ H J®ch thick

80ft Chalk 4«.3

Hard Chalk, with Flinto

Hard Chalk 120.3

Debru compnetng "Sand, Claj, Marl- Second Cem’f Soft Chalk, -.Xatd Chalk ' with Flints Verj hard (iraj Chalk

Feeder of||Water from the Thin Bed Sandj Millstone Hard Chalk Millstone with Flints 166,0 Vtrj bard Gray Chalk .. Very hard Sandstone ' and Millstone Si.ft Chalk I with Fllnts'N ! V.rjhud ar»jr Chmlk ,

Sandy Millstone 109,1 Millstone 200.7 Vcty hard 204.4

> ery hard j Sandstone ^ and Mlllelone 213.9

Very soft 214 ft Gray Chalk

Greenish •Gray Chalk HlulsL>Qiay Cball

The sinking commenced in October, plant was erected within the 12 months curb was inserted, and the shaft from 1904; the coal-measures were entered in from October, 1904, to October, 1905, just 146 ft. to 126.3 ft. was tubbed. The October, 1905. Within this period, all as in the case of No. 15 shaft, feeders of water were thus confined be¬ provisional installations were completed. The sinking was carried on without dif- hind the tubbing, the flow of water cut besides putting in the tubbing and mason- ficulty down to a depth of 126.3 ft., of off, and the sinking again resumed in which 81.2 ft. were walled with masonry dry ground. *Ab8tract from the proceedings of the So¬ ciety pour rindustrie mlnerale, 1906, p. 11-19. in the upper part of the shaft, and 45.1 At 150.9 ft., at D, the side of the shaft i6o THE ENGINEERING AND MINING JOURNAL. July 28, 1906. nearest the channels, suddenly showed of the water as low as possible, and thus Nineteen days after running in the ce¬ a wide fissure, which extended above, and enable the pipes for the cement to be in¬ ment, the water was pumped out and in depth ran toward the center of the serted. Two columns of pipes, 1.97 in. the sinking resumed. shaft. An abundant stream of water in diameter were inserted, throughout The block of cement was sunk through, poured from this fissure. No. 2 pump the full depth of the pit of 165.5 ft-> so as to leave, around the pit, a pro¬ was replaced by a more powerful pump, of which 105 ft. were out of the tecting ring in front of the opening of the flow of water having increased to water and 62.5 ft. within the water the bed G; the temperature of the ce¬ 110,000 gal. per hour. At 160.8 ft., at E, (Figs. I and 2). The first pipe H was ment was found to be 86 deg. On sink¬ a wedging curb was inserted, and the placed in front of the opening of the ing down to the strata, no more water shaft from 160.8 ft. to 146 ft. was tubbed. bed G, the lower end being 0.5 ft. from was met, and the fissure was found to be The flow' of water from below the fis¬ the bottom; the second pipe / was placed strongly cemented. At 170.6 ft., at 5", sure was cut off, and sinking was re¬ in the middle of the pit, the lower end a wedging curb was inserted, and the sumed. The fissure widened in depth, being driven about 9.8 ft. into the fissure. shaft from 170.6 ft. to 160.8 ft. was tubbed. and seemed to continue down to a bed Four holes 7.9 in. in diameter and 196.9 Sinking was resumed, the flow of water of sandy millstone 29.8 ft. lower down. ft. deep, were bored down to the bed being 1,320 gal. per hour. At 185.7 ft- The flow of water gradually increased. of sandy millstone at a distance of 13.1 the fissures had reached the opposite At 166 ft., at F, or 5.2 ft. below the wedg¬ ft. from the circumference of the shaft. side of the shaft, at O; the strata were ing curb, a fresh flow of water came in \ hand-pump was placed upon each of more and more fissured toward the side through a thin bed, which opened widely these bore-holes, and worked as a pic- and toward the center of the pit, at R. at G. A third pump was put to work in liminary in order to remove the sludge The strata close to the fissure and the side the winding compartment. The flow of produced in boring and to clear the bore¬ of the shaft nearest the bore-hole R water increased to 132,000 gal. per hour. holes. Cement was then run in under burst in, and the water charged with sand, Finally, the sinking was stopped, the flow the conditions recorded in Table i. clay and marl broke into the pit. All of water being greatly in excess of the The first period of cementation in the pumps werd started but they could not pumping capacity. pit was stopped, so as to give the cement lower the water, the flow of which con¬ At this point, the problem arose as that had run in, time to set in Ae bottom siderably exceeded 132,000 gal. per hour, to whether pumping should be resumed of the fissure. The second and third per¬ so the sinking was again stopped. after further increasing the pumping ca¬ iods were terminated by the pipes H and It was now found necessary to start pacity, or whether the method of sink¬ I becoming closed at their lower extrem¬ a process of second cementation, and ing should be modified. After careful ities. Throughout the whole of these as in the first case, the level of the water consideration, it was decided to appiy operations it was found that the pumps was lowered as far as possible, so as to the process of direct cementation, and upon the bore-holes gave the results re- enable the pipes for carrying the cement the following arrangement was adopted: corded in Table II. to be put down, and also to admit of the To run cement into the fissure and into T ABLE II.—Appearance of water sludge being removed from the fissure. the opening of the flat seam G by means PUMPED FROM THE BORE-HOLES. It was found that the pumps had dis¬ of pipes; to assist the penetration of the Pe¬ Bore- Remarks. charged a volume of 353.2 cu.ft. of cement into the strata, by pumping from riod. boles. sludge, which had come from the fissure. I. ,.. K Clear Water. Two columns of pipes, P and Q, 2.76 bore-holes, to be put down outsfdc tlie L Water carrying cement, after the shaft; and to cement the bore-holes, and third hour. in. in diameter beneath* the water-level, then wait until the cement had set com¬ M Water very slightly turbid. and 1.18 in. in diameter above the water N pletely. Clear water. level, were put in for the full hight of the II. .. K Water heavily loaded with cement pit, their lower ends being driven about Table I.—Cement run into the var¬ from the commencement of the 5.9 ft. and 2.6 ft. respectively, into the fis¬ ious PIPES AND BORE-HOLES. run. sure (Fig. 2). 1. Through pipe H. L Water carrying cement. M Water very slightly turbll. The concrete-mixer, which in the case Hours. Cement. Water. lb. . gal. N Clear water. of the first cementation was placed at 1 4,400 6,6011 III. .. K Water heavily loaded with cement. the top of the shaft, was replaced by a ■2 4,000 C,60O L Water with cement. high and narrow tank. The mixer was 3 4,400 6,600 M Clear water. connected to this tank by a trough fur¬ 4 6,000 6,600 N Clear water. 5 6,000 6,C0«) nished with inclined gratings of small The first cementation was carried on 6 6,000 6 (KX) mesh, the object of which was to remove 7 8,0Ct» 6,000 under adverse conditions. Numerous air- air from the liquid. Finally, an indi¬ 2. Through pipe /. bubbles rose to the surface of the water cator was placed at the bottom of the Hours. Cement. Water. in the shaft, bringing up with them a lb. gal. shaft. Cement was then run into the large quantity of cement, which settled 1 8,360 3,960 pipe P, as recorded in 'I'able III. 2 13,750 3,960 afterward upon the ribs of the tubbing, Table III.—Cement run INTO 3 9,900 3,960 upon the scaffolds and buntons, and upon THE pipe, P. the bottom of the shaft, in the form of 3. Through pipe H (resumption of the Hours. Cement. Water. first run). mud. Its slow ascent and descent de¬ lb. gal. prived it of its setting power. Neverthe¬ 1 6,600 1,760 Hours. Cement. Water. 2 7,700 1,760 lb. gal. less, the greater portion of the cement 3 7,700 1 9,900 3,960 1.760 had penetrated into the strata, and the 4 11,000 1,760 4. Through the bore-holes. remainder, minus the slime, set, at the 6 11,000 1,760 6 11,000 1,760 Bore-hole. Cement. Water. bottom of the pit, into a hard block hav¬ 7 11.000 1,760 lb. ga. ing a thickness of 2.6 ft. and it was suf¬ K 3,300 3,300 8 16.600 1,760 L 3,860 3,300 ficient to block the opening into the bed 9 16,600 1,760 M 36,200 9,9.0 G. Altogether, 27,500 tb. of cement were Running in the cement was then stopped, N 9,900 6,60)1 injected into the strata, and 49.500 tb. in consequence of the pipe - P becoming The operations preparatory to the ce¬ set in the shaft-bottom. If the cement closed at its lower end. mentation lasted several days. At first, absorbed, or required to fill the bore¬ Throughout these operations, the indi¬ the pumps were kept at work at an ex¬ holes M and .V, be included, the total cator. constantly observed, showed the cessive speed, in order to keep the level quantity used amounted to 80,850 lb. results recorded in Table IV. July 28, 1906. THE ENGINEERING AND MINING JOURNAL.

Table IV.—Appearance of the water, ning of cement under water. Moreover, Handling Water in Shaft Sinking. Ki^marks. in the shaft and in the bore-holes, the Clear water. pipes of small diameter were very rapidly BY F. W. PARSONS. Clear water. closed at their lower ends; and finally Clear water. Wear ’^®**'* the pipes imbedded in the cement had In sinking a shaft through wet strata, Water sllglitlyslightly turbid. • , , it is found from experience that when the Water slightly turbid with cement. either to be abandoned, or withdrawn with flow is less than 10,000 gal. per hour, it Water strongly charged with cementcement, great difficulty. These observations caused Water very strongly charged with the arrangements to be modified for the is most economical to raise it in ordinary cement. On lowering the indica- second cementation. The diameter of water barrels fitted with a valve in the tor, it settled upon mud. pipes was diminished to 1.18 in. bottom. At one colliery 90,000 gal. of Water very strongly charged with ‘ , , , , , water an hour was effectively dealt with cement. The indicator, when low - throughout the length above the water, ered, rested upon cement, 1.6 ft. say, 105 ft. and was increased to 2.76 by two automatic tanks, cav-ueach udvuiKhaving a ca- above the bottom. in. for the length of 82 ft. through the Forty-seven trips were 9. water very strongly charged with diminish the rapidity of ^ ^epth of 200 yd. If, cement. The Indicator, when low- outflow Furthermore the method however, more than 10,000 gal. per hour ered, rested upon cement, 3.3 ft. ‘"e outnow. hurtnermore, the method . . e- . . above the bottom, of running in the liquid cement at the have to be dealt* with, it is generally advis-advis¬ . , surface was altered and improved. Dur- able to suspend one or two direct-acting Ihe second cementation was executed . . , . , , sinking oumns in the shAft Allnwincr thee<. . , A f Ki 'og these operations, the opening of the sinking pumps inm theme shaft,snatt, allowing these on1 August 14, under favorable conditions.conditions, ® upc.uuuu.,, , u.c, upcuu.g ux . u.r oumos to draw water from a tanlf at . n u Tr r .L . _outflow valve from the concrete mixer pumps to draw“raw water fromirom a tank at- The first half of the cement penetrated I'"™ O'' was regulated so as to keep the tank underneath them; the into the fissure, and the second half reflated so as to keep the tank r t * ^ r aU « CUllSlclIlliyconstantly filledllllCU withWIlll slurryMUIIV up tolU theuic ^ pulsometer separately formed, in the bottom of the shaft, a , t,. . f suspended in the bottom of the pit, and is j I u a .... au:.,! e..a..i;.„v level of the trough. Thus, without cut- hard block about 3.3 ft. thick, sealing « n ui a lowered as the sinking proceeds. Since ^ . 11 a D ting off the flow, it was possible to main- up the burst-in wall at R. . . • .u r n u- u. ^ the pulsometer will force the water to a T u a au crau Ua. laa... .1,,. taiu the full hight of the pressure in It was about the fifth hour, when the . , . , ^ , hight of 70 or 80 ft., the pit can be sunk ^ • au cvf the pipe which .conveyed the cement, and cement began to appear in the water of . , , . , this distance without altering the position , . ^ at. a au £ to oote, by means of the indicator, the the indicator, that the fissure was blocked ’ , , of the main pump. The pumps are j a au £ t a u.aA =, momeot when the fissures refused to and that the flow of cement reached the , raised and lowered by means of block and , . t- aa A ta au » aco »K afisorfi any more cement. The time al- shaft-bottom. Altogether, 99,000 Ib. of . r at. aa- r u tackle. ^ Aj f, i,-... 1, tK lowed for the setting of the cement wa:was tu i cement were used, of which 44,000 lb.id. . a » o j The pulsometer is an exceedingly useful , . . a ai. a a J -„ lucreased from 19 to 28 days. . , j . ... ^ ^ were introduced into the strata, and SS.ooo . ' j at. a ai. 1 handy pump, and will pump mud, if • . at. 1. ra u aa _ T » a riually. It will be noticed that the large . . , . , ’ , . , lb. into the shaft-bottom. Twenty-eight j j • au not too thick. The absence of exhaust . f au a .. .-a. aUa. proportioo of cement suspended in the ^ , . . , , days after the cement was run in, the ‘ ... -a x steam makes it particularly useful for a J a au- oiaaiai^.. Water was caused by the necessity of . , . ^ water was pumped out, and the sinking . ... sinking purposes. . plugging openings, which were very t a v ai. a-n . . . , was resumed. . j 1 a at. t. xa 1"In dealing with still larger quantities olof -T't. a- f • I • au- can- Wide and close to the shaft. . . , , ^ The operations of sinking were the same u u • a u u r water (500,000 gal. an hour), resort must • aC T r r Th. Klnx-V 'Fhe results obtained by these two appli- u J a a • V a r • , • 1 as in the first cementation. 1 he block - , , . had to special methods1 of sinking such , . ^ _. _. ___ cations of direct cementation led to the rr- a xm. j .• of cement was cut through, and was as the Kind-Chaudron, direct-cementa¬ following conclusions:—(i) Fissures can found to be harder, in consequence of tion, or the freezing process. The adop¬ , . . • u - :a cemented by bore-holes. (2) Sand, longer time having been given it for .... , u « i- a v tion of any of these methods, however, marl, boulders, clay, chalk-slimes and bor¬ setting. A layer of sludge T, one foot necessitates great expense, but it is ing-sludge cannot be cemented. (3) In- thick and uncemented, was found beneath cheaper to start them at once, than to the Mock of cement, between the latter communicating in their try and cope with the feeders by pumping. upper portion with the flow of slurry, and the solid strata. This sludge had can be cemented. (4) Thin beds, pre- been carried in by the inrush of water. Coal Production of Montana. and spread over the bottom of the pit and 'onttnons opentngs not very tor- npon the side of the fissure. On getting "mus, can be cemented by a current of The coal output of Montana amounted the slurry produced by the action of down to the rock, no more water was in 1905 to 1,643,832 short tons, valued at encountered; and the second cementation Placed upon the bore-holes. $2,823,350. The average price advanced The cost of sinking these two shafts, of the fissure was found to be complete. from $1.61 in 1904 to $1.72 in 1905, per down to the coal measures, a depth of At 189.5 It- a thin open stratum was short ton. The larger part of the coal found and cemented, and numerous other 492 ft., was in each case, $117.12 per foot, produced in Montana is sold for locomo¬ vertical fissures were cemented. At 190.3 . . • c . . • tive use. ft., at U, a wedging curb was inserted, ^he breaking strain of a hoisting rope The total number of men employed in and the length from 190.3 ft. to 170.6 ft. should be taken generally as 20 per cent, 1905 was 2,181, as compared with 2,505 was tubbed. At 199. i ft. a bed of mill- ’«s than the aggregate strength of the men in 1904. The average number of stone, fissured and but little cemented, wires, due to the tension caused in twist- days worked was 243 in both years. The was cut through. The vertical fissures ing the wires together. The ultimate ten- average production per man in 1905 was were cemented. At 204.4 ft. an open sile strength of the steel employed, varies 753-7 tons, against 524.5 in 1904. seam was cut through and cemented. At from 50 to 160 tons per square inch. One mine in Montana was closed from 214.9 ft- bluish-gray chalk was cut through. _ January i to August 19 by a strike which At 234.6 ft. a wedging curb was laid; and entirely to avoid friction and had begun in August, 1904. This mine the length from 2346 ft. to 190.3 ft- hoisting, it is pos- employed a total of 200 men, and it is the was tubbed. The sinking then continue install a winding engine mounted only instance of labor trouble reported in Its regular course without any new diffi- _^^. . . -, ^ Montana during the year. , . ... upon rails, which at each revolution of the culties and without water. . There were 58 mining machines in use , X • ..L £ drum moves sideways a distance equal to In performing the first cementation, , , . , ^ , . , ■ , in Montana in 1905, against 57 in 1904, au u • vv- • • :a the thickness of the rope, thus keeping the through pipes 1.97 m. in diameter, it was . T, , ,, . and 63 in 1903. The machine-mined pro¬ rope always in line with the pulley. This noticed that despite the enormous out¬ duction in 1905 amounted to 752,665 short put of 1059.5 cu. ft. of cement from the arrangement reduces the width of drum tons, or 46 per cent, of the total output, as mixer, air was carried down, this being, required, as the rope coiling on takes the compared with 482,924 short tons, or 35.5 ill every respect, injurious to the run- place of that running off. per cent, of the total output in 1904 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

Safety Cages. breeds, and this prevents the maximum Kentucky Coal. benefit from being derived. It is best to BY F. W. PARSONS. go to the base of the matter and adopt The preliminary report of Prof. C. J. precautions to avoid a broken rope. It Norwood, chief inspector of mines, for The laws which govern the methods of should be the rule to make a rough in¬ 1905. gives the total coal production of mining in America, require that all cages spection of the rope every day and a care¬ Kentucky for the year at 8,038,646 tons, of used for hoisting men be fitted with some ful inspection each week. Furthermore, which 7,950,230 tons were bituminous, and approved safety catch, and also with a the rope must be shielded from exposure 88,416 tons cannel coal. As compared substantial cover to protect the occupants to the weather, and acid water in the with 1904, the total shows an increase of from falling objects. Any cage fitted shaft should not be allowed to touch it. 871,322 tons, or 12.2 per cent. The value, with some form of catch intended to act After allowing an ample factor of safety at the mines, of the cannel was $216,366, in event of the rope breaking, and to sus¬ and buying a good quality of rope, the an average of $2.44 per ton; of the bitu¬ pend the cage in the shaft, is called a most important duty is to see that the minous, $7,593,788, an average of 9S.5C. “safety cage.” sheaves and drums are of ample size (the per ton. During the year there were 174 There are various types of cages; near¬ drum diameter should be at least 125 companies and individuals operating 229 ly all, how'ever, are designed to suspend times the rope diameter), and the grooves mines, or openings. the cage by gripping the guides. They and flanges in good condition. If, in ad¬ A large proportion of the coal in Ken¬ have chiefly been made for use with wood¬ dition to this, the rope is well greased tucky is mined by machines. The propor¬ en guide rods, although a few patterns with good oil, the chances of its breaking tion so mined, by districts, is shown in the are adapted to work with wire-rope are greatly reduced. following table for 1905: guides. ,—Machine.^ ,-Pick.-, Safety catches have a tendency to cause Coal Production of Kansas in 1905. Districts: Tons. PerCt. Tons. PerCt. too much reliance to be placed upon them, Western. 3,K7,M9 69 8 1,421 198 80.2 Southeastern. 1,031,728 37.2 1,747.831 6>.8 and consequently there is often a neglect Northeastern. 127,362 22.0 450,278 78.0 According to the U. S. Geological Sur¬ of necessary precautions that would other¬ vey, the coal production of Kansas in Total. 4,416,339 66.0^3,621,307 46.0 wise be observed. Moreover, they are 1905 was 6,463,329 short tons, worth Machines were used by 51 companies, in liable to come into operation accidentally $9,410,632. The average price of coal per 71 mines, distributed among 17 of the 25 in ordinary work, when the rope has not ton in the State declined from $1.52 in counties that produced commercial coal. broken. If this happens to the ascending 1904 to $1.46 in 1905. The total number of machines used was cage, the catches rub against the guides It required 12,198 men for an average 561, of which 393 were punchers, two and cause friction, doing no harm; but of 213 days, in 1904, to produce 6,333,307 were cutter-bars (driven by air) and 166 when such an accident occurs to the de¬ short tons, whereas there were only 12,006 were electric chain cutters. Al^iough the scending trip, the cage is brought to a men employed for an average of 212 days number of punchers exceeds that of the sudden stop, which, in case a high speed in the production of 6,463,329 tons in electrics, the latter were used by about the has been acquired, is almost certain to re¬ 1905. The average production per man same number of companies. From the sult in a bad accident and seriously injure increased from 519.2 tons in 1904 to 538.3 figures it is evident that the machines were the men. It has been sought to obviate in 1905, while the average daily produc¬ in use chiefly in the larger mines. The this in the special cage designed by Pro¬ tion per man increased from 2.44 tons to power used is divided almost equally be¬ fessor Undeutsch, of Frieberg, which was 2.54 tons. tween compressed air and electricity. described in a recent number of the Jour¬ 1 he use of mining machines in this The production of coke for the year nal. State does not affect mining results. In 1905 was 65,475 short tons. Work now Where the usual style of safety catch 1905 there were three mines which re¬ being done and planned will increase this is employed, it is advisable to see that the ported operating a total of 10 undercut¬ output largely. guide rods and their supports are made ting machines. The machine-mined prod¬ The total number of employees reported very strong, so that they can be relied uct amounted to 19,101 tons. In the pre¬ was 15,032, of whom 11,990 worked un¬ upon to support the weight of a heavy, ceding year five machines produced 10,600 derground, and 3042 on the surface. This loaded cage. Of the various types of tons. gives an average of 535 tons mined per catches, those depending upon springs are Labor troubles had no influence on the employee. The number of persons killed the most liable to be out of order and fail production. Strikes, which varied in du¬ by accident during the year was: to act. No matter what form is used, ration from two days to 30, were report¬ the catches must act simultaneously and Number. Per 1000. ed in 1905 from nine mines. The most Underground. 28 2.34 equally at the opposite sides of the cage, On surface.... 3 0.99 serious suspension was at the mines of otherwise an excessive strain is produced the Home Riverside Coal Company at which is liable to tear the guides out of Leavenworth, where 616 men were on The construction of new railroad lines, place. strike for ii days. In all, 1482 men were and the opening of new territory, prom¬ Safety catches which are held out of idle at various times for an average of 10 ise a considerable increase in production. contact by the tension of the rope, should days, the total time lost amounting to act immediately when this tension is re¬ 14,686 working days, or only a little more leased through a breaking of the cable. The fact that a fire-boss is familiar with than 0.5 per cent of the total working Unless the bridle chains slacken immedi¬ the nature of mine gases, and can explain time. Coal mining in Kansas is conducted ately, owing to the recoil caused by the a few of the laws of ventilation, is not on a basis of eight hours per day, al¬ breaking of the rope, they may not do so sure evidence that he can detect gas when though a few mines report nine and 10 at all, and the catches will not operate; minute quantities of it are present in the hours to the working day. because from that moment,-the cage, mine air. It has been recently proved that bridle chains, detaching hook, socket, and partial color-blindness is more common the broken rope, are all of them falling The mineral production of Queensland than generally supposed, and many fire¬ bodies, and it would be only friction and during the first quarter of 1906 was as fol¬ bosses, whose sole duty is to test for gas the greater air-resistance that would lows: Copper, i,437J4 tons; silver, iii,- in the mines, cannot distinguish a cap check the cage. 118 oz.; lode tin, 623tons; alluvial tin, when 2 per cent, of gas is present. The As in many other protective devices, 389^4 tons; lead, 253^ tons; wolfram, sight of every observer should be tested, the great danger comes from the over- ^33/4 tons; molybdenite, 26^4 tons; man¬ as the slightest defect seems to produce confidence the use of such arrangements ganese, 480 ton. inability to detect faint caps. July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 163

Colliery Notes. consists of a heavy wrought-iron bar, the sive, and its use is only advisable when bottom of which is fitted with a steel the strata are loose and heavily watered, The distance between two shafts should block carrying inserted chisels or cutters, and great pressure is present. Concrete not be less than 150 ft., especially if the readily removable for sharpening. has met with much less success than might workings are deep. Many of the cappings, as now fitted on have been expected, and is not now looked In order that the empties will properly winding ropes, allow the rope to be drawn upon with much favor. The common idea run under the tipple chutes by action of out by a strain much less than the actual that concrete is cheap, is really questiona¬ gravity, it is recommended that the in¬ breaking strain of the rope itself. In ble, providing good material is used, and clination for the empty sidings be one in cases of breakage of this kind, only about it is put in properly. Many engineers 65, and the loads from the tipple run away 60 per cent, of the breaking strain of the claim that brickwork in the long run is as on a grade of one in seventy. rope was applied. The method being cheap and more satisfactory than any other lining. The brick used should be The tipping, screening and cleaning adopted to prevent this trouble consists in carefully selected and burnt hard. plant at a colliery should be placed at embedding the wires at the end of the rope least 250 ft. from the downcast shaft. in an adhesive white metal, by which In capping a hoisting rope to prevent its This eliminates the possibility of the in¬ means the necessary enlargement to pre¬ pulling out, the method generally adopted take air being full of dust, which would vent drawing out is secured. is to run white metal into the socket after be carried into the workings. In arranging the surface plant for a separating the wires. To increase the se¬ curity of the white metal, the wires should The use of a single-gauze safety-lamp colliery the boilers should be placed as be cleaned with paraffin oil, then dipped in in gassy mines should be carefully consid¬ near the hoisting engines as convenient, a weak solution of nitric acid to remove ered. Great danger attends the use of such so that the steam may be conveyed with all grease and dirt, and afterward tinned, a lamp, especially when the gauze diame¬ as short a length of pipe as possible. For the inside of the socket, which is bored ter is as much as 2-in., which is frequently every six boilers necessary, one extra out by machinery, also being tinned. Any the case. If a lamp of this kind be sub¬ should be provided as a spare one to be good white metal, which melts at a low jected to firedamp, the gas continues to used when one of the boilers is cleaned temperature, may be used. One alloy burn in the upper gauze until there is a each week. In roughly estimating the which has proved suitable, consists of 60 danger of passing the flame. quantity of feed-water required per hour, per cent, lead, 30 per cent, tin, 9 per cent, Explosions from cast-iron steam pipes a fair average can be obtained by allowing antimony, and i per cent, bismuth. The are generally caused by allowing water- 15 gal. per ton of coal drawn. antimony increases the hardness, while hammer to set up in the cast-iron pipe In sinking a shaft guide ropes are a the bismuth lowers the melting point, and range, which action is often responsible distinct advantage, permitting a greater has also the advantage that it slightly ex¬ for the formation of a longitudinal flaw, speed of hoisting, and eliminating all risk pands in cooling. rendering the pipe too weak to resist the of swaying the rope, and consequently pressure, and a large piece is blown out. saving the time necessary for steadying It is a mistaken idea that the degree Many such accidents have resulted fatally the bucket before starting. Where guides of carbonization of any coal depends en¬ to men working in the vicinity. are used, the bucket must discharge di¬ tirely on the age of the deposit. If in all At a colliery where the engineman in rectly over the shaft, and a shoot built cases, the character of the overlying and charge of the hoisting changes from of steel plates can be mounted on wheels, underlying strata, the manifestations of night turn one week to day shift the next so as to run under the buckets on rails heat, and other necessary conditions were week, it is often the practice to allow one fastened on top of the doors, allowing the same, the quality of the coal would of these men to work a “long turn” at the either bucket to discharge into it. then depend almost entirely on the age end of the week. An arrangement of this A load of coal delivered on August 15 or element of time. The conditions, how¬ kind is to be discouraged, as numerous ac¬ gave a gas yield of 30.30 cu.m, per 100 kg. ever, controlling the change in the char¬ cidents have occurred when the engine- when carbonized immediately after ar¬ acter of any coal, are almost wholly dif¬ man has continued too long in attendance rival. On Nov. 20, after remaining in ferent even in adjacent fields, and as a at the engine. store, it contained 5.86 per cent, of moist¬ consequence, it is incorrect to attempt a In a wet mine, where a shaft is not ure, and gave 30.14 cu.m, of gas per 100 classification pf any coal through a knowl¬ convenienty available and it is desired to kg.; while on the following March 12, it edge of the age of deposit. The anthra¬ clear the workings of water, a bore hole contained. 5.63 per cent, of moisture, and cite and bituminous coals of Pennsylvania may be driven to the surface of the water yielded only 27.67 cu.m, per 100 kg. The are of identically the same age, and are and a pipe driven far enough beyond to coal was stored in an unprotected state, but one of many cases where time condi¬ secure proper submergence; the water which brought about the depreciation here tions are utterly disregarded. can then be lifted by means of compressed shown, and proves how necessary it is Experiments in Germany with reference air. The expense of driving a shaft is to house carefully all stored coal. to improved methods of coke manufac¬ thus saved and the water lifted at a com¬ Because, of the permanent character of ture have resulted in the installation of paratively low cost. main entries, it is generally advisable to mechanical coal stampers at all the plants. Compressed air is still more extensively brush down roof and take up sufficient The advantages of stamping the coal are: used than electricity as the motive power bottom to permit a carefully-graded road¬ (i) The coke is denser and more solid; for coal-cutting in Great Britain. In 1905. way. On cross entries, however, when experiments having shown a tensile there were 555 compressed-air machines, the dip of the coal seam is variable, the strength with 100 per cent, increase in while only 355 electric machines were in results obtained after grading do not al¬ favor of the stamped coal. (2) Two or use. However, the latter are making ways warrant the extra expense incurred. three per cent, more large coke is ob- greater strides than the former, for out of For this reason the rack-rail system of ' taned. (3) The total yield is about 3 the year’s increase in the number of ma¬ haulage is becoming popular under suck per cent, more on account of the less loss chines in use, 85 were driven by electricity conditions. Where this system is adopted, of coal by burning in the oven. (4) The and 70 by compressed air. the operator is enabled to follow the vein density of the coal permits a larger When rope-boring is carried on, it is uphill and downhill, eliminating the ex¬ charge. (5) The width of the oven cham¬ better to dispense with rigid rods, and to pense of grading. ber is not of such importance. (6) The • suspend from the rope a tool which may There are three general methods for leveling of the coal is done away with, be quickly raised and lowered, thus saving lining a wet shaft; first, with concrete; and the production of smoke, which is the time expended in screwing and un¬ second, with brickwork; third, with iron annoying to the workmen, is thus ob¬ screwing the bore rods. The boring-tool tubbing. The last method is very expen¬ viated. i64 THE ENGINEERING AND MINING JOURNAL. July 28, 1906

Metallics. parts will stand the roughest usage, wear a solution of iron and iron monosulphide, longest and are the least expensive to re¬ the iron separating in the metallic form place, is the best machine to choose. The when the mass cools down. The common With under-feeding, the Huntington matter of first cost is not worthy of con¬ opinion that the bisulphide of iron is de¬ mill becomes noisy, vibrates and rapidly sideration, because an inferior rock-drill composed into iron and sulphur is erro¬ wears itself out. Over-feeding reduces all is a source of constant expense and seri¬ neous, Berzelius and Rammelsberg having sound until the belts break or come off, ous loss, and when discovered should be proved many years ago that pyrite in a and the pulp packs in the center and along immediately thrown out on the scrap heap. neutral atmosphere by losing its sulphur the screens and splashes over the side. The recently invented tantalum lamp is changed primarily into a compound The best prevention against the spon¬ consumes only 1.5 watts per candle power which is analogous to magnetic pyrites and taneous ignition of coal when stored in against 3 to 3.5 watts for the ordinary not into monosuphide, inasmuch as only bunkers or large heaps is the use of small lamp with carbon filament. However, it three-sevenths of the sulphur, and not half cylinders of compressed carbon dioxide can scarcely be made to take a higher ten¬ of it, escapes. fitted with a fuse melting at 200 deg. F. sion than no volts, owing to the difficulty A cylinder i ft. in length and 3 in. in In sinking a deep vertical shaft, on the of getting the necessary length of wire in¬ diameter contains sufficient carbon dioxide Witwatersrand, its dimensions being 32x9 side a lamp of convenient size. Conse¬ to liil ihe pores of eight tons of coal. ft., divided into five compartments (four quently, on a 220-volt circuit, two tanta¬ of 6x5 ft. arranged for hoisting, and one Bins that are exposed to the weather lum lamps must be coupled together in of 6 ft. 6 in. X 6 ft. arranged for pumps are particularly unsuited to the storage series. The life of the tantalum lamp is and ladder way), in the center of the of damp ore, because the latter is likely rated at 600 hours against 450 hours for shaft, between compartments Nos. 2 and to freeze to a solid mass in winter. If the carbon lamp. 3, a division wall was carried down from damp material has to be kept in such bins, In the manufacture of coke, the reduc¬ the surface. The partition was made of holes should be left in the bottom of the tion of time of burning, without deter¬ 9xi}/2-in. flooring, tongued and grooved bin, so that steam pipes may be run into ioration of product, and the advent of by¬ and shaped into the side of the shaft so the bin and live steam forced through the product coke, make it impossible to pre¬ as to be perfectly air tight. This method material to thaw it out. scribe the same requirements for ac¬ of ventilation was found to be entirely .\t an ore-separating plant in Mexico, ceptance today as were satisfactory satisfactory. At a time when the temper¬ after the apparent failure of an installation several years ago. The committee on ature of the air at the surface was 80 of Wetherill magnetic separators, a standard specifications for foundry coke, deg., at the bottom of the shaft, 3900 special design of roasting furnace was of the American Society for Testing Ma¬ ft. deep, with 28 men at work, the ther¬ adopted, the atmosphere of which was terials, reported at the recent meeting of mometer registered only 84 deg., the di¬ actually reducing in character and of low that society that it is impossible yet to vision wall at this time stopping 400 ft. temperature; this led to a great improve¬ present a satisfactory specification for coke above the bottom. It is the usual prac¬ ment in the result, and the uniform pro¬ made by modern practice. tice in this shaft for the muckers to duction of a blende concentrate contain¬ In self-emptying bins, the material will descend 15 minutes after blasting has ing about 45 per cent. zinc. not always flow easily, particularly if it be taken place, although the average blast Nitrous fumes reveal their presence by a little damp or contain large particles. is 32 machine-drill holes, and the weight their peculiar pungent odor. Miners and The weight of material in the bin often of explosive over 100 pounds. mine superintendents should realize the packs that part of it at the bottom into a The testing of explosives for mining use danger of exposure to even small quanti¬ more or less solid mass, so that after a is usually done in a lead bomb, which is a ties of these gases, for the reason that ex¬ little may have been drawn out, the mate¬ cylinder of cast lead, usually 8 in. in di¬ posure to the diluted gas for several min¬ rial above will arch over and cease to ameter and 8 in. high, with a hole 0.8 in. utes may cause little or no initial distress, flow. It is therefore well to leave small in diameter and 4.4 in. long, cored axially and yet give rise several hours after holes near the delivery chute of these bins, from one end to just above the center of arrival in the fresh air to g;rave symptoms, covered with a slide, so that bars may be the cylinder. .The test is made by placing frequently ending fatally. pushed into the bin to break up the 20 grams of explosive in the cylinder, in¬ A new compound for pipe joints has “bridges,” or arches, which may form serting a standard detonator with a fuse, been introduced in France. It is free from over the opening. tamping lightly with dry sand and firing. all the inconveniences of red lead. The At the chlorination mills in Colorado, The enlargement of the hole is then meas¬ new putty is composed of zinc gray and a which treat the ores of the Cripple Creek ured, and the strength of the explosive Chinese vegetable oil utilized in England district, the present practice is to effect calculated by that means. The correction for manufacture of linoleum and some the chlorination in lo-ton revolving bar¬ for the detonator can be made by firing a kinds of varnish. The material hardens rels. The average charge is 10 tons of second identical cap alone in a second completely at 150 deg. C., and at no deg. ore, 5 tons of water, 200 to 400 lb. of cylinder. The most serious fault of this C. in six hours. This putty is said to be sulphuric acid of 66 deg. B., and 100 to test is that the proportions are not those cheaper than red lead, and is of less den¬ 200 lb. of bleaching powder containing of an ordinary blast, the hole being too sity. 30 to 33 per cent, of chlorine. The chlori¬ short, the fuse disproportionately large, The lead concentrate produced at the nation occupies from 2}4 to 4 hours, and the tamping ineffective. Consequent¬ mill of the Bertha Mineral Company, the barrel revolving at 4 to 5 r.p.m. dur¬ ly, a considerable part of the explosive at Austinville, Va., averages about 57 per ing the treatment. Three to four hours effect is wasted, and inasmuch as this loss cent lead, 4.8 per cent, zinc, and 3.29 per is required for filtering. The gold is pre¬ is greater for slow than for quick pow¬ cent. iron. It is smelted in a Scotch cipitated from the solution by means of ders, the test is unfair to powders which hearth furnace, which makes pig lead and hydrogen sulphide. The chemical cost for require substantial tamping. These objec¬ gray slag, the latter averaging 31 per cent, dissolving and precipitation amounts to tions are overcome to some extent by em¬ lead, 25 per cent, zinc, and 13.3 per cent, 75 to 80c. per ton of ore treated. ploying a cylinder 8 in. in hight, and 5 in. iron. The gray slag is smelted in a blast In heating pyrite, the final product in diameter, with a central bore hole 15/32 furnace, which produces pig lead and a passes somewhat beyond the mono¬ in. in diameter and 5.5 in. in depth, using waste slag averag;ing 3.5 per cent, lead. sulphide grade, having a composition only eight g^ams of the explosive to be The rock-drill that performs the most approximately like Fe*S4, or Fe^S*, etc tested. The sand tamping is further com¬ work in the shortest time, at the lowest It should be considered as a mixture, pressed by placing a lead weight of about cost and consumption of air, and whose 4 FeS -|- Fe. or 3 FeS -|- Fe, that is to say. too lb. on top .of it. July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 165

The Value of Engineering Services. in their demands will excite a smile 2:s£nginbe^?ing^ among the great majority of the hard¬ Mining Journal In connection with the recent fiasco of working members of the profession whose the Fresno Copper Company, of Califor¬ incomes are modest, no matter how they Contents. paqb nia, a statement as to the cost of engineer¬ appear to the outsider. There are a rela¬ Editorials: The Value of Engineering Services.. .. 165 ing advice is highly indicative of the rea¬ tively few men in the profession, whose Mining in the Philippines. 166 son for the large loss in many ill-judged great experience, high reputation, and The Tonopah Mine-Owners’ Union.... 166 The Copper Market.'. 166 enterprises of this kind. It appears that large earning power in their own business Electrometallurgy in 1905. the stockholders of the company, who are ventures, properly entitle them to demand < . J. O. B. Kershaw 145 •The Tacoma Copper Refinery, mostly Scotchmen, are very angry over the and receive large fees, which generally D. A. Willey 147 situation, as indeed they apparently have are cheerfully paid by those who desire The Chlbogomo Itegion in Quebec. 148 Slate Quarrying .. 148 good cause to be. and are holding the di¬ their services. On the other hand, there •Cyanide I’raicttce at the Liberty Bell rectors responsible for not having sent are many first-class men of high standing, Mill, TelluriUa. Colorado..W. E. Tracy 149 out an expert long before they finally did. Arizona and Sonora—IX : high professional ability, and long experi¬ The Arizona Copper Company. According to our San Francisco corres¬ ence, whose services may be secured for a />. E. Woodbridye 150 pondent, the directors explain that they fee based on $40 to $50 per day of time Mining In Cordoba, Spain. 151 Pyrites Production of Huelva, Spain.... 151 tried to get an expert in America, but that employed. This often appears an exorbi¬ •Ore Milling In Wisconsin, the terms were so exorbitant that none of tant remuneration to the inexperienced Staff Correspondence 152 the propositions was entertained. Conse¬ mining adventurer, and many an engineer Improving Iron Ore Roads. 154 The Vulcan Tin Mine, North Queensland 155 quently, as a matter of economy they pro¬ has seen reluctance manifest itself after •Mining at Tonopah.G. T. Rice 156 ceeded to spend $100,000 on the further such a figure had been mentioned, and •The Blake-Denlson Weighing Machine.. 158 development of the mine and $140,000 in the remark made that probably a “cheaper •Direct Cementation in Shaft Sinking, C. Dinoire 159 the construction of a smelter; after which man could be secured, who would do just llaiidliiig Water in Shaft Sinking. an expert was finally employed. He told as well.” The prospective client fails to E. ir. Parsons 161 the directors that the mine was of too low consider that the engineer is maintaining Coal Pi-fKluction of Montana. 161 grade to be worked profitably, which, an office at expense which goes on all the Safety Cages.F. IV. Parsons 162 doubtless, they could have learned in the time, while he himself, in holding himself Coal ProdMctlon of Kansas in 1905. 162 Kentucky Coal . 162 first place if they had been willing to do in readiness for just such retainers cannot Petroleum in Rumania. 168 so. Probably the directors of this com¬ hope to be employed in field work all the Limestones Associated with Pyrites and pany can now see that professional ad¬ time, loses much time in negotiations for Pyrrhotlte of the Appalachian System. vice, taken early, would have been cheap which he may receive no fee, is subject to F L. Eason 170 at any price. loss of time through sickness or accident, The Rush to Cobalt. 172 Without going further in discussion of requires an annual vacation (like other Colliery Notes . 163 Metallics . 164 the misfortunes of this company, advan¬ persons), and incurs many chances which Correspondence and Discussion : tage may be taken of its fresh experience reduce the gross result of a year’s active •The First Tube Mill in Metallurgy. to point out the same moral that we have work to a good deal less than 300 times A Cornishman 167 done many times. The old saying that $40 or $50 as the case may be. There are Is the Drilling Sufficiently Deep in “every man who is his own lawyer has a many consulting engineers of good prac¬ the Wisconsin Zinc Region?. fool for his client” may be extended to tice at the “exorbitant figure” of $40 to //. A. Wheeler 168 New Publications . 168 those who, ignorant of the science and $50 per day, who are willing to accept a Patents . 172 practice of the art, venture into mining salary of $S,ooo or $6,000 a year as being Personals . 173 enterprises and fail to employ the ser¬ the equal of their net income from con¬ Obituary . 173 vices of the engineer who makes mining sulting work, with the advantage of being Societies and Technical Schools. 174 his business. The mining losses which a surety. Industrials . 174 Trade Catalogs . 174 amount to most in the aggregate are in¬ Nor are engineers, as a rule, grasping Construction News. 175 curred through utter disregard of this in their relations with their clients. There Special Correspondence: precept. The great mining fortunes of the are black sheep in every profession, even San Francisco!. 175 present time are being accumulated by in the medical profession, which in some Butte . 176 the men, who, as a part of their business respects ranks above any other, but among Salt I>ake City . 176 acumen, appreciate the value of the high¬ the professions, in so far as common hon¬ I*enver . 177 I/eadville . 177 est order of engineering talent and em¬ esty is concerned, the engineering ranks Hartshorne, Ind. Ter. 177 ploy the best engineers. These men suffer with the highest. The engineer who has I>uluth, Minn. 177 losses, such as are to be expected in any regard for his professional standing aims Platteville, Wls. 178 business, but they do not suffer losses to give to his clients the best service that Scranton . 178 through failure to secure the best avail¬ he is capable of, and at the minimum of Toronto, Ont. 179 Victoria, B. C. 179 able professional advice. expense. He does not seek to protract London . 179 It is painful to learn that no engineer unnecessarily his commission or magnify Johannesburg . 180 could be obtained in America at less than its importance in order to secure a larger Oeneral Mining News . 181 exorbitant terms. However, the sugges¬ fee. Often he advises, in a brief office foreign Mining News . 184 Markets . 185 tion that mining engineers are exorbitant consultation, against the undertaking of a i66 THE ENGINEERING AND MINING JOURNAL. July 28, 1906. projected examination, which might mean sum involved. A little reasoning on this dustry; and largely because of ignorance many dollars to him. Often he will line would have saved the Fresno Copper of the islands and their resources. The recommend the sending out of a young Company a good deal of money, but that tropical climate does not invite prospect¬ and cheaper man as a scout, forsaking a company is only one example out of many, ors or men of small means, and capital larger fee which he could easily have de¬ and after all its losses are small in com¬ does not seem to be inclined to go to the veloped for himself. The honest engin¬ parison with some that have been incurred far East, even under American rule. Pro¬ eer, and we believe that the majority of through the non-employment of good en¬ posed extensions of roads and railroads, the profession are honest, has many vir¬ gineering advice, because such advice furnishing transportation, may help; but tues for which he does not receive credit. could be secured at nothing short of “ex¬ it looks as if the mineral resources of the Many of the failures in mining ventures orbitant terms.” Philippines would wait some time for any are due to the lack of acquaintance of the extensive exploitation. Mining in the Philippines. promoters or the investors among en¬ The Tonopah Mine-Owners’ Union. gineers, and consequently the inability to The Mining Department of the Philip¬ The formation of a mine-owners’ union discriminate between the expert and the pines, which was organized soon after in the Tonopah district in Nevada, and its inexpert. The range of difference in pro¬ the United States took possession of the establishment of a scale of wages were fessional experience and ability is very islands, must be credited with some hard noted recently in our news columns. wide. One engineer may be absolutely and faithful work, although its means and This action seems to have been taken trustworthy as an observer of facts, but its force have been limited. Although its rather in anticipation of action on the utterly untrustworthy as a drawer of explorations have been necessarily con¬ part of the miners than in consequence of conclusions. Another engineer may pos¬ fined to certain areas, and a large part such a movement. Possibly, also, the in¬ sess the sound judgment which enables of the territory has hardly been touched, a tention may be to prevent competition him to draw highly valuable deductions good deal has been accomplished. The among the mine owners themselves for from the facts observed by others, while old Spanish records were too incomplete labor. he himself in the field may be a poor ob¬ to be of much service, and the real work Tonopah is comparatively a new dis¬ server of facts. Other engineers combine of the bureau has been largely original. trict, with no large settled supply of labor these qualities. There are differences, Enough has been done, however, to to draw upon. It is a country where the moreover, in the line of specialization. show that, while it is hardly likely that the attractions for prospectors are great, and One engineer may be an excellent man to Philippines will ever be prominent as a where miners are liable to be drawn away report upon the value of a gold mine, but mining country, their mineral resources constantly by the reports of new strikes and a very poor man to be sent to examine a are not to be despised. Among the me¬ new districts. The supply of labor is not lead mine. The matter of local experience tallic deposits known to exist are ores of only insufficient, but also uncertain. Hence is also an important consideration. Natu¬ gold, copper, lead, iron and manganese; of an association of mine owners is likely to rally these characteristics remain un¬ the minor metals quicksilver, molybdenum, be useful, if it is so managed as not to known to the layman, and the latter if he tungsten and probably platinum. provoke antagonism. be wise enough to employ an engineer, The actual beginnings of mining, how¬ frequently makes a mistake by employing ever, are almost insignificant so far. A The Copper Market. the wrong man; but, unfortunately, he little gold mining—quartz, placer and The market for copper continues to be more often makes the mistake of falling dredge—is going on, and a little coal is be¬ in with an alleged engineer, but really no ing taken out. Copper mining has hardly quiet, but there are signs that the large engineer at all, who gives the unreliable been seriously undertaken. Prospecting, consumers, both foreign and domestic, and deceptive advice, which may be tem¬ such as we are accustomed to see in the who have been refraining from buying porarily pleasant to the client, but ulti¬ West, has been hardly known. The iron during the last six weeks, will shortly be mately leads to financial disaster. How¬ industry is limited to some work with disposed to make purchases again. This ever, it is not any more difficult to dis¬ crude native furnaces, such as have been probably will manifest itself first in a cover the right kind of an engineer to in use for centuries, producing a few hun¬ stronger demand from abroad. The sta¬ employ than it is to find out who is the dred tons yearly. Whatever the future tistical position of the metal being strong, right kind of a lawyer, or a doctor. Any¬ may have in store, the present gives little and the large sellers being firm in their one who contemplates going into a mining indication of activity. views, it is to be expected that the price venture, and is not himself a miner or a There are several reasons for this. The for copper will rise again. mining engineer, should make up his number of Americans in these islands, During the recent period of stagnation, mind, in the first place, to employ an en¬ outside of those connected with the Gov¬ certain of the large producers have been gineer ; and in the second place to be sure ernment and the army, is small, and most holding their copper at i8j4c., delivered, that he employs a good engineer. Hav¬ of them are engaged in commerce. Peo¬ 30 days (corresponding to about 18.32c., ing gone so far, he should let the matter ple in the United States have not been in¬ New York, cash), but have not been of professional fee take care of itself. If clined to invest in the Philippines ; partly making any sales, while others have sold he be going to rely upon the judgment of because our people are not habituated to copper at lower prices. There has been the engineer in a matter involving $100,- investments outside of North America; doubt as to the attitude of the large 000, for example, he may well rely upon partly because there has been a general consumers, but the conviction that their the engineer in the matter of his fee impression that conditions are not suffi¬ business is continuing at unabated activity amounting to perhaps one per cent, of the ciently peaceful and settled to invite in¬ appears now to have become general. July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 167

Correspondence and Discussion. Of these formations the Niagara and Assuming, for argument, that this theo¬ Hudson are interesting to the miner only ry is correct, I fail to see why this should We invite correspondence upon matters of in making up the occasional flat-topped confine the ore to exclusively above the interest to the industries of mining and metal¬ lurgy. Communications should invariably be mounds that dot the district, and repre¬ oil-rock; for the orebodies in the Galena accompanied with the name and address of the writer. Initials only will be published sent remnants of a sheet at least 500 ft. formation are supposed to have been when so requested. thick which once covered the entire dis¬ mainly and possibly entirely derived by Readers are invited to use this department for the discussion of questions arising in tech¬ trict. The Potsdam sandstone, or. basal the leaching of the Galena limestone itself, nical practice or suggested by artcles appear¬ ing in the columns of this Joubnal. member, also lacks interest to the miner and the subsequent precipitation and con¬ Letters should be addressed to the Editor. except as a possible deep source of water centration of the ore in the lower oil-rock We do not hold ourselves responsible for the opinions expressed by correspondents. supply. horizon. That lead and zinc were also Some lead and zinc has been found in contained in a diffused condition in the The First Tube Mill in Metallurgy. the Lower Magnesian and St. Peter’s for¬ original sediments that now make up the Sir—In a letter on the above subject, mations, but thus far not in profitable Trenton and Lower Magnesian limestones written to you from Sault Ste. Marie, quantities, and trifling amounts have also seems quite as probable as in the Galena, Ont., which appeared in your issue of been found in the Hudson shales and Ni¬ and they could also have been leached out June 16, I find, since my arrival in Eng¬ agara limestone. and reprecipitated as paying orebodies in land, that the mill was patented in 1879, The upper part of the Trenton lime¬ either the Trenton or Magnesian forma¬ and was awarded the first silver medal stone, which is locally known as “glass- tions. As the Trenton formation is much of the Royal Cornwall Polytechnic rock” (from its sharp, conchoidal frac¬ thinner than the Galena, it suggests that Society in 1880, and that the machine was ture), has occasionally been found to carry the orebodies derived from itself would in use at several of the mines, and largely zinc in much more encouraging amounts, be smaller or poorer than in the Galena, on the tin stream works during the same and a few efforts have been made to mine assuming that the same amount of mineral year. it. But from a general lack of confidence matter per cubic foot was originally de¬ I now inclose a photograph of a tube in the Trenton, the work has been per¬ posited in each, and for the same reason, mill recently erected at the King Edward functory, and this formation is generally that larger orebodies should be found in School of Mines. The mill is 6 ft in regarded as being more interesting to the the considerably thicker Magnesian for¬ length, 2 ft. 4 in. in diameter, requiring geologist than to the ore-producer. The mation. The facts available today confirm 4 h.p. to grind s54 tons of hard sand a day, the wear of scrap iron being equiv¬ alent to 4 lb. per ton of sand. A CORNISHMAN. Huddersfield, England, July 7, 1906.

Is the Drilling Sufficiently Deep in the Wisconsin Zinc Region? Sir—There is a widespread impression in the Wisconsin zinc region that the ore- bodies of that district are confined to the so-called “Galena” formation, which is a Magnesian limestone, varying from 100 to 250 ft. in thickness, immediately overlying the Trenton limestone. This impression is so deeply implanted, that it has been ac¬ cepted as a fact by most of the prospec¬ tors and operators, and in consequence the drilling is generally stopped at the “oil- rock.” The oil-rock is a brownish, bitu¬ minous shale about 2 ft. thick, which oc¬ curs at the junction of these two lime¬ stones and is usually regarded as the basal member of the Galena formation. The method of prospecting now in vogue in this rejuvenated district is with churn drills, there being several hundred em¬ ployed, and the oil-rock is an easily rec¬ reason for this lack of faith is not difficult the former suggestion but are decidedly at ognized horizon below which the prospec¬ to discover, for the origin of the ore-de- variance with the latter. However, there tors rarely drill. As the outcropping rock posits in this district has been insistently are so few data available as to make gen¬ of the district is usually the Galena lime¬ ascribed to the leaching and reprecipita¬ eralizations extremely premature and dan¬ stone, the drilling is inexpensive, as the tion by descending atmospheric waters by gerous. But the fundamental conditions holes range only from 50 to 200 ft. in all the geologists who have studied it since are favorable, as the porous, open St. Pe¬ depth, costing 750. to $1 per foot by con¬ the classic work of Chamberlain. As the ter’s sandstone that intervenes between tract. shaly oil-rock interposes an impervious the Trenton and Magnesian limestones would permit either ascending or descend¬ A geological section, in descending or¬ stratum to the descending mineral-bearing der, of the district, which is in the drift¬ solutions at the base of the Galena lime¬ ing solutions to transfer the mineral con¬ less area, shows: stone, this would prevent their reaching tents of both formations into either the the underlying Trenton, while it would upper part of the Trenton, where there Residual or surface clays. 3 to 30 ft. are quite thick shale beds, or to the Mag¬ Niagara limestone. 100 to 300 ft. tend to enrich the lower portion of the Hudson River Shales. 60 to 160 ft. Galena. The fact that the orebodies in nesian, which usually contains some Galena limetUme . 100 to 260 ft. the Galena limestone usually improve in shales. Trenton limetUme. 40 to 75 ft. depth and are apt to be richest just above That the Trenton formation will prove St. Peter's Sandstone. 40 to 100 ft. to be a valuable ore-bearing horizon seems Lower Magnesian limestone.. 160 to 260 ft. the oil-rock is regarded as confirmatory Potsdam sandstone. 700 to 1000 ft. of this theory. to me extremely probable, and the follow- i68 THE ENGINEERING AND MINING JOURNAL. July 28, 1906. ing facts are certainly very encouraging. Peters sandstone, it is a small outlay con¬ New Publications. On recently examining the Little Giant sidering the excellent probabilities of find¬ mine at Shullsburg, I found a large open ing orebodies. Although the outlook is “Labor Bulletin of the Commonwealth cut in the Galena limestone that had been not so encouraging for finding pay-ore in of Massachusetts No. 42, July, 1906.” Pp. worked down to the oil-rock in mining the still deeper Magnesian formation, 72. 6x10 in.; paper. Boston. 1906: several flats and pitches of “dry-bone,” or which would add 200 to 300 ft. to the Bureau of Statistics of Labor. carbonate of zinc, about 17 years ago. A drilling, it is a “flyer” worth taking where “Thirty-sixth Annual Report of the shaft sunk in the open cut about 30 ft. be¬ there are ample funds for prospecting, es¬ Deputy Master and Comptroller of the low the oil-rock showed a very fair flat pecially when it is remembered that this Mint, 1905. Presented to both houses of of zinc-blende that was 10 to 20 ft. beneath is the horizon that contains the very ex¬ Parliament by Command of His Majes¬ the oil-rock. The ore occurred in brec- tensive and highly profitable disseminated ty.” Pp. 192. 6x9^ in.; paper, is. Lon¬ ciated glass-rock under a bed of shale that lead deposits of Southeastern Missouri. don, 1906: Darling & Son, Ltd. was about 6 ft. thick, which is unusually H. A. Wheeler. “Preliminary Report on the Geology heavy for that country, and certainly quite St. Louis, April 2, 1906. and Underground Waters of the Roswell [This interesting communication was ac¬ an impervious horizon for descending ore- Artesian Area, New Mexico.” By Cas¬ bearing solutions to penetrate. The work¬ cidentally belated in publication. However, sius A. Fisher. U. S. Geological Survey, ings showed a face of ore that was 6 to the value of its suggestion is in no way Water Supply and Irrigation Paper No. diminished by the tardiness of its presenta¬ 12 ft. high, from 15 to 40 ft. wide, and 158. Pp. 29; 9 plates; illustrated. 6x9 in.; which had been worked for about 200 ft. tion.—Editor.] paper. Washington, 1906: Government • directly under and parallel to the flats Printing Office. above the oil-rock. Some work had been Petroleum in Rumania. “Bibliographic Review and Index of done about 15 ft. deeper, but as this was Underground-Water Literature Published below the adit level, water prevented an According to a recent British consular in the United States in 1905.” By Myron examination of an orebody that was 35 report, the total production of crude oil L. Fuller, Frederick G. Clapp and Ber¬ ft. below the oil-rock. While the ore in in 1905 was about 601,700 tons, or double trand L. Johnson. U. S. Geological Sur¬ this “glass-rock,” or Trenton formation, the production of four years ago. The vey, Water-Supply and Irrigation Paper was probably unprofitable at the time it total export was 214,348 tons as against No. 163. Pp. 130. 6x9 in.; paper. Wash- was operated, as it is heavily contaminated 160,442 tons in 1904 and 126,227 tons in ingfton, 1906: Government Printing Of¬ with pyrite, it would now make a good 1903. France took 55 per cent, of the total fice. paying proposition. export of 1905, comprising 11,790 tons of The Ollie Bell mine, in the Benton dis¬ crude, 79,766 tons of refined oil, and 27,- “Transvaal Mines Department. Half- trict, which was formerly rather a large 369 tons of benzine. Germany took 17 per yearly report of the government producer of dry-bone and jack above the cent, the United Kingdom 10 per cent, mining engineer for the six months oil-rock, has recently been exploring the (entirely refined petroleiun) and Austria- ending December 31, 1905.” Pp. 19, underlying glass-rock and has opened up Hungary 9 per cent, of the total. Of the with 28 statistical tables. 85^x13 in.; pa¬ an orebody that promises again to make exports of petroleum, 60 per cent, is ship¬ per. Pretoria, 1906; Government Print¬ this mine an important and profitable ship¬ ped to Constantza and 14 per cent, at ing and Stationery Office. per of zinc that will be derived entirely Braila. The late disturbances in the Baku Contents: Labor and wages. Mineral from the Trenton limestone. petroleum fields did not appreciably bene¬ output. Accidents and prosecutions. Ex¬ '1 he Quinlan diggings, at Benton, fit the Rumanian industry. plosives and stores. Statistics of capital. were former important producers of Large areas of the Rumanian oil fields “The Mechanical Engineering of Col¬ lead and zinc that is reported to are the property of the State, and have lieries.” Vol. ii. By T. Campbell Futers. have been derived from the glass- hitherto been unworked, but a law has Pp. 308; illustrated, yj^xio in.; paper, $2. rock ; as the workings are in a creek- recently passed providing for the leasing London, 1906: The Colliery Guardian bottom and are now full of water, the ad¬ of these lands to private companies, and Company, Ltd. joining outcroppings indicate that the ore containing important restrictions with the Contents—Boring. Shaft sinking. Sur¬ was obtained not only in the Trenton, but object of preventing monopolies. Some face arrangements. Shafts and head- probably in the lower part of the Trenton. years ago the Standard Oil Company tried gears. The old Mason mine, at Linden, was a to obtain a concession for working the We called attention to the excellent large producer in the Galena horizon and Government oilfields together with the quality of the matter in Vol. l of this it is now being developed into an exten¬ right of erecting the necessary pipe lines work, and now, after reading Vol. ii, sive mine that is operating in the glass- to Constantza, but such an outcry was which has lately reached us, we are of rock under flats and pitches that lie above raised in the country against this monop¬ the opinion that it is an improvement on the oil-rock. oly falling into the hands of a foreign the first book issued. The Trio mine, at Linden, is a new company that negotiations were broken The author has here dealt with the property, working a flat in the glass-rock off. Other companies have since tried to subject of hoisting in a carefully detailed, that is 40 to 90 ft. wide, which shows a obtain large concessions but without re¬ and exhaustive manner, illustrating his good grade of jack. sult. ideas by drawings, diagrams, and photo¬ At New Diggings some recent drilling The Standard Oil Company has erected graphs. that was extended to the St. Peters sand¬ a large refinery near Ploesci, capable of The selection and use of a good hoist¬ stone is reported to have found good pay dealing with 60,000 carloads per annum. ing rope is carefully discussed, as well as ore to within 3 ft. of the sandstone and Another refinery, owned by the Disconto- the problems of a safe working load, the drillings are said to have assayed from Gesellschaft, also near Ploesci, is capable breaking strains, rope sockets, and speed 2 to 8 per cent. zinc. of dealing with 20,000 carloads of 10 tons of hoisting. Much attention is paid to the In view of this evidence, future drilling each. The Steana Romina company has size, style, and operation of the various should be carried through the Trenton a large refinery at Campina. In the early winding engines, and the merits of steam limestone to the St. Peters sandstone, and days of the petroleum industry large sums as compared with electricity as a motive at least occasionally a hole should be ex¬ of monqr were lost by British capitalists, power, are carefully discussed. Mr. Fu¬ tended through the still lower Magnesian and it is now mostly financed by Germany. ters, for most cases, advocates the use of formation to the Potsdam sandstone. The Standard Oil Company has estab¬ steam, claiming that up to the present While this will usually lengthen the drill lished itself in Rumania, and its prospects time, we have not been able to install holei from 50 to 75 ft. to reach the St. seem good. electric winding which provides as much July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 169 safety, reliability, ease of handling and Lippincott Company. London: Charles ment deposit. The term appears to us to economy in upkeep, as is possible where Griffin & Co., Ltd. be a bad one, as it will lead to confusion steam is used. The waste and lost effi¬ Contents—Classification of mineral de¬ with the well-known segregation deposits ciency, where the latter power is used, are posits. Ore veins, their filling, age struct¬ of igneous magmas, a wholly different considered to be due to design and hand¬ ure, wall movements, ore shoots, etc. The type of deposit. ling, and it is argued that when we adopt dynamics of lodes and beds. Ore deposits Professor Park’s account of saddle reef small drums, high piston speeds, coun¬ genetically considered. Theories of vein deposits does not mention Rickard’s work, terbalancing, compounding and automatic formation. Ores and minerals considered and it is questionable whether these pe¬ cut-off gear to enable the steam to be economically. Mine sampling and ore culiar mineralized folds are structurally worked expansively, good results are valuations. The examination and valua¬ due to the dikes cutting through them, or achieved. It is also stated that the chief tion of mines. whether the dikes do not simply follow loss in a steam hoisting engine occurs In this little volume the author pre¬ fissure opened in folding caused by an un¬ during the time the engine is standing, sents the compact summary of his views derlying batholith (p. 50). owing to condensation in the steam pipes, on the occurrence and genesis of ore de¬ In using the Van Hise term “katamor- the cooling of the steam chests, cylinders, posits published serially in thtAustralian phic zone,” defined by Park as equivalent etc., but by placing the engine as near the Mining Standard a year ago. These arti¬ to “zone of oxidation,” it seems that the boilers as is conveniently possible, and cles have been slightly amplified, but no author is imposing unnecessary labor upon giving careful attention to the covering of material changes have been made. Pro¬ the reader. Why not use the plain Eng¬ the pipes, etc., with some good non-con¬ fessor Park is well qualified for his task, lish word “oxidation,” if it means the ducting composition, this may be reduced his work on New Zealand and Australian same thing? to a minimum. mines having been extended over many The statement that the internal heat Much attention is directed to getting years. As would naturally, be expected, of the earth is due to radio-active minerals rid of the inertia effects of a heavy drum, his views concerning ore genesis support of the earth’s interior is apt to mislead and the angling of the rope. In doing the theory of igneous origin, by heated va¬ college students and others into the belief this, the drum is dispensed with, and a pors and waters, rather than the delusively that this is a generally accepted theory. grooved pulley adopted in its stead. This attractive “descension” theory advocated The description of the Butte, Montana, sy.stem consists in passing a single rope by a few geologists of the Mississippi Val¬ deposits is faulty, for there is at that over a large pulley on the crank shaft of ley. The numerous references to the camp no lode or mineralized belt three the engine, over the two head-gear pul¬ hot springs and geysers of New Zealand, miles long. Professor Park has evidently leys, and attaching a cage at each end, with the accompanying illustrations, are of followed Emmons’ earliest paper and not with a balance rope beneath the cages. unusual value, coming from a competent read the later work of Weed. Moreover, 1 he friction of the rope on the pulley is observer of many years’ experience. the oxidized ores of the camp were not sufficient to raise the useful load, and in The book is well worthy of careful mainly chlorides, nor is the ore of the cop¬ order to increase the friction, the groove reading, and will be welcomed by mining per veins chalcopyrite. This mineral oc¬ of the pulley is lined with wood, leather, men generally. Its chief value lies in the curs to some extent in the silver veins, or hemp rope, and the cable is not concise descriptions given of ore deposits, but is uncommon and in insignificant greased. The advantages and disadvan¬ concerning which little is known, or which amount in the copper lodes. tages of this system are discussed in de¬ are only described in official reports, with Part III is an excellent essay on “ore tail, with the result that where heavy more husk than grain. It is only fair to veins,” but is a horse a bit of rock float¬ loads are raised slowly, the system is state, however, that although written in ing in gelatinous silica (p. 67) ? A stock thought to be eminently suitable, as the a plain and practical style, appealing to is not a stockwork in our opinion, as im¬ engine may be started and stopped slowly, the average miner as well as the scientific plied on p. 38. The account of contact de¬ so there will be little or no slip. A great man, it presupposes a familiarity with posits includes descriptions of Rio Tinto, objection against this system, is that mineralological and petrographic terms Mt. Lyell and Rammelsberg, not generally should the rope break, both cages would that rarely obtains among mining en¬ accepted as contact deposits, but no men¬ fall to the bottom of the shaft. Probab¬ gineers. tion is made of Morenci, Bisbee or Ca- ly the chief advantage is that no over¬ Under the heading of placers Professor nanea. The Ducktown, Tenn., deposit is winding can occur, for, as soon as the Park fails to distinguish residual placers, described after Henrich, and his theoreti¬ descending cage rests upon the bottom, often a most important group, and under cal section is given, while the later work part of the weight is removed from the tin placers an erroneous idea of the con¬ of Kemp and of Weed, based upon pres¬ rope, and the driving pulley begins to centration of the material is conveyed. ent deep mining and extensive develop¬ slip. In describing platinum placer gravels ment, and given in Kemp’s “Ore Deposits' Much information is given, relative to the surprising statement is made that the of the United States,” is ignored. the size, style, and design of cages, and domestic supply of the United States The chapter on economic minerals is excellent drawings of a number of kinds comes from California. The amount act¬ the weakest part of the book. Cement is are presented. Various arangements for ually produced in the United States is in¬ carelessly if not erroneously defined as an hoisting several cars on one trip are de¬ significant. Gem placers are briefly noted, intimate mixture of lime and clay, but scribed, and everything up to a four-deck but the sapphires mined in Montana are er¬ nothing is said of portland cement, whose cage is referred to in detail. The sub¬ roneously described. The really valuable manufacture is one of the world’fe great ject is concluded by a description of vari¬ gems in that State come from the minette industries. Under copper the usual er¬ ous hoisting signals, and winding indi¬ dike mined at Yogo. The pale green and ror occurs about Butte ores, and that the Arizona ore deposits are oxide. No men¬ cators, some of which are ingenious in off-color stones mined elsewhere come al¬ tion is made of the new discoveries of co¬ design, and register automatically. Taken most if not entirely from the gold-bearing gravel bars of the Missouri river and balt at Cobalt, in eastern Ontario, and the as a whole the subject of hoisting and all other streams. The term “fahlband” is bulk of the gold production of Montana is phases of action that pertain to it are used for impregnations, but it is not stated said to come from silver-lead veins, which treated in an interesting and instructive that the bed may be payable and not merely really supply an insignificant amount, the manner both from a general and a tech¬ and only an enricher of vein deposits. The copper ores, the dry gold-silver ores and nical point of view. term “segregated vein” is defined as the cyaniding gold ores furnishing almost “A Text Book of Mining Geology.” “bedded” vein, but includes saddle reefs, the entire output, aside from the placer By James Park. Pp., 219; illustrated. 5x8 and Broken Hill, cited as an example, is supply. in. Cloth. $2. Philadelphia, 1906: J. B. described el.sewhere as a t}T)ical replace¬ Despite these inaccuracies, due to a lack THE ENGINEERING AND MINING JOURNAL. July 28, 1906. of familiarity with American deposits, this Those holding the theory of segrega limestone to account for these large bodies little volume is welcome and timely, and lion from a molten magma find strong of nearly pure sulphides so character¬ should be in the hands of every mining backing in the copper-nickel pyrrhotite istic of the Appalachian system. The man interested in geology. deposits of Sudbury, and in the magnetic main object of this paper is to record ores of eastern Ontario, such, for in¬ some personal observations which seem to offer direct evidence in support of Limestones, Associated with Pyrites stance, as the Blairton mine. what has hitherto been assumed; namely, and Pyrrhotite of the Appala¬ So far as I can see, those standing out for vein deposition, especially in the that limestone has been the rock re¬ chian System. sense of a fissure vein, have little to moved by solution and replaced by sul¬ rely upon except general principles as to phides. In 1894, after some professional BY FRANK L. NASON.* the origin of mineral-bearing solutions. work in Louisa county, Va., I wrote a As regards replacement of easily soluble paper for the Journal. In that paper I It is a striking fact that in the Ap¬ rocks, this theory can call to its aid all called attention to the existence of im¬ palachian mountain system (using this the data in support of sedimentation, and pure-limestone strata in the walls of the term comprehensively as extending from draws support from the advocates of vein Sulphur or Crenshaw mine, and also in the island of Newfoundland to north origin. The great gap lies in the ab¬ the Arminius. This limestone was close Alabama), the rocks are fairly imiform sence of readily soluble rocks whose near¬ to the ore-body, as is evidenced by the in texture and mineral composition. They ly complete removal would allow space fact of finding pieces on the dump with consist mainly of hydromica slates, for the great lenses of nearly pure sul¬ stringers of pyrite attached to them. The chloritic slates, hornblende schists and phides. This process of development, limestone was grayish-white, and band¬ gnieisses. The last are hard and com¬ viz., replacement, necessitates the re¬ ed with dark minerals of the hornblende pact. When gneisses are present these moval of the only direct and convincing family. contain biotite and muscovite, and are evidence—the presence of limestones Another fact may be stated, although more loosely compacted than are the themselves. Recourse thus far has it has less force than the one above gneisses of similar mineral composition been, by compulsion, to rely upon assump¬ pointed out. In the main ore-body, a in the older iron bearing rocks of New tion of direct, and the adoption of indi¬ great part of the ore of both mines was Jersey and New York. rect, evidence. The assumption of direct granular, and friable, the grains seem¬ Two other facts are prominent in this evidence is drawn from the fact that the ing to be lightly cemented by films of belt: the presence of great bodies of great caverns necessary to harbor great carbonate of lime. I also noted oc¬ sulphides, pyrite and pyrrhotite; and the lenses of pure sulphides could not be casional blocks of ore of large dimensions absence of bodies of limestone, except su¬ easily accounted for by the buckling of where limestone or carbonate of lime was perimposed beds of recognized younger rock strata and holding these open dur¬ the principal part of the mass, and the geological age. The pyrites of the Ap¬ ing the slow process of filling by min¬ grains of pyrite completely isolated, the palachians for the most part are copper- eral solutions. Therefore a cavern must one from the other. free, or at best carry but a fractional per have been formed analogous to the proc¬ Recently I visited one of the sulphur cent.; while the pyrrhotites from Ala¬ ess of mining and filling. That is, as the mines in Louisa county, Va., which had bama to Newfoundland rarely contain less rock was removed by the solvent waters, been flooded. The floor of the mine was than one per cent., more commonly two these same waters deposited their burden thickly strewn with tangled masses of per cent, or better, and occasionally as of sulphides in place of rock removed. hair-like crystals of gypsum. Some drill high as four per cent. In form, the de¬ No rock is so readily and completely holes were completely filled with this min¬ posits of pyrite and pyrrhotite are similar. soluble as pure limestone. All other rocks, eral, and delicate tufts clung to the walls. Both are lenticular, are generally con¬ when uniform in composition, strongly I am perfectly aware that this condition formable to the enclosing walls, dip south¬ resist solvent action; when not uniform, demands only the presence of lime, and east, pitch northeast, and lens succeeds like gneisses, they have minerals of vary¬ is wholly neutral as to its origin; but, lens on the downward northeast pitch. ing solubility. Thus, in the latter case, taking into consideration the facts that The discussion as to the age of the a complete substitution could not take limestone is present in the walls; that sulphides (whether contemporaneous with place. Hence the assumption of an orig¬ carbonate of lime exists in the ore-body the enclosing rocks, or secondary and inal body of pure limestone. As has been proper, and especially the fact that (save thus younger) is general, and the con¬ stated, however, this process removes, or for the presence of hornblende) there clusions are various. The discussion as¬ has been supposed to remove, all direct are no easily decomposable lime minerals sumes four phases: First, sedimentary; evidence of its operation. present, it is easier to ascribe the source second, segregation from a molten mag¬ Indirect evidence of the former ex¬ of lime in the gypsum to an original ma ; third, vein formation, pure and istence of limestone has been sought, and limestone rather than to secondary cal- .simple; fourth, replacement of an easily advanced, in what are very evident facts. cite. soluble rock. These facts are the existence, in great A few years ago, while on a profes¬ Those holding the sedimentary theory masses and strata, of nearly pure basic sional visit to the Cabin Branch pyrite have much in support of their position. lime minerals, mainly of the hornblende mine, Dumfries, Va., I noted limestone Conformability to the country rock is the family; essentially lime, magnesia, iron occurring there in the same manner as main argument. It is not weakened ma¬ and aluminum silicates. In impure lime¬ in Louisa county. The limestone here terially by evidence that the ore-bodies stones exist the necessary elements for was impure, except for interrupted bands occasionally have a flatter or steeper dip the flexible composition of hornblende of an inch or more in thickness. These than their host. The rolling and swell¬ and allied minerals. The existence of bands were interlaminated with bands of ing of the ore-bodies, as well as their lime minerals in rock masses points to lime, with scattered granular crystals of pinching and narrowing, readily explains an original bed of impure limestone, and hornblende or pyroxene, and with bands the seeming unconformity. In no case this, in turn, to the former existence of nearly pure mica-schist. Incidentally, coming under my personal notice (and I of beds of pure limestone which have been from time to time, small cavities several have seen the greater number of worked removed and replaced by sulphides. inches in length were found. These were deposits) does this unconformity suggest Judging by recent papers by various filled with an inspissated hydrocarbon re¬ a vein that unmistakably cuts the coun¬ authors and in many 'publications, sembling albertite. No masses of pure try rocks. opinions are rapidly trending toward the carbonate of lime were noted in the ores. Another fact (which may prove * Mining engineer. West Haven, Conn. adoption of the theory of replacement of July 28, 1906. THE ENGINEERING AND MINING JOURNAL. to be of importance) is the following: maps, with the idea of gaining knowledge mine is being actively developed, and I Parallel with the pyrites ^ieposit at Sul¬ of the slope of this ore-body. I had no have the permission of one of the officers, phur mines and to the east, is a dike of time to study the rocks enclosing it. How¬ Thomas Cox, to publish the following tiap rock. The size of this is uncer¬ ever, returning to South Strafford, I no¬ notes: tain, for its surface manifestation is con¬ ticed a large outcrop of limestone which The ore-body lies between walls of fined to weathered boulders, many of was crossed by the public road. I did what might be called hornblende schist or large size; my recollection is that a solid not stop for a critical examination, but gneiss.^ The orebody, so far as developed, outcrop is partially exposed by a small this outcrop had the appearance of being lies in a synclinal trough, pitching to the brook. much purer than any limestone which I northwest at an angle of about 45 deg. Near Teed, Ontario, about one-half had before noted in connection with sul¬ A dike of fine-grained light-gray granite mile from the Canadian Pacific Railroad, phide of iron deposits, except the pyrite cuts the orebody repeatedly to the low¬ is a long line of white limestone. This deposits near Teed. est developed point, 150 feet. limestone is flanked for a mile or so by During the months of January, Febru¬ Beginning on the foot-wall side, the a ridge of eruptive rock. On this rock ary and March, 1906, I traveled the terri¬ ore is mainly a massive pyrrhotite, coarse rests a succession of lenses of pyrite of tory between the Blue Ridge and the grained, with occasional crystals of iron varying size. The ore is heaviest near great Smoky mountains in Virginia, pyrite, a large per cent, of copper pyrite the eruptive, though it contains much North Carolina, Tennessee, and Georgia. scattered through the mass, and large carbonate of lime; and this mineral in¬ Between Independence, Grayson county, grains or crystals of glassy quartz. Next creases until it passes into a nearly pure, and the territory in Floyd county, Va., I in order comes a stratum of granular white, crystalline limestone. I do not found several small exposures of lime¬ quartz of varying thickness; this quartz now recall whether or not the ore rested stone near small pyrrhotite outcrops. stratum, though of irregular thickness, is directly on the eruptive with no lime¬ These were confined chiefly to Grayson persistent; and this, taken with its gran¬ stone parting; but my impression is that county and near the New river. At the ular structure, appeals to me as being it did. The ore-body richest in pyrite was west foot of Peach Bottom mountain, in originally a sandstone of coarse texture. granular and friable, changing this con¬ Alleghany county, N. C., are some old This quartz stratum is, in many places, dition only when limestone was the prin¬ workings known as the Peach Bottom heavily impregnated with copper pyrite. cipal mineral. There are several other copper and silver mine. Strictly speak¬ In immediate upper contact with this deposits of pyrite not many miles distant ing, this should not be included with the quartz, is a stratum or bed of coarsely from the above. These also occur in white pyrrhotite and pyrite deposits, for I no¬ crystalline iron pyrite; at least, this is limestone; but not having visited them, ticed neither of these minerals. The eco¬ the principal mineral. The pyrite crystals I cannot say whether or not they are as¬ nomic minerals noted were copper are imperfect but of large size, many sociated with eruptives. Without com¬ pyrites, copper glance, sphalerite and being from two to four inches across. mitment to a definite hypothesis, I simply galena. I first noted blocks of lean ore The crystals are blebby or cellular. With remark, in passing, that the Teed deposits which had come from the old workings. this pyrite is considerable chalcopyrite, have the essentials of replacement of rock Many of these blocks were limestone though the percentage is much smaller by sulphides. An eruptive dike breaks banded with hornblende schist. The lime¬ than in the footwall sulphides. Sepa¬ through a soluble rock and lenses of stone, nearly pure, was crystalline, granu¬ rating the crystals of pyrite, are found pyrite occur where, with this explanation, lar, and flecked with grains of chalcopy- frequent wedges and masses of transpar¬ they would be expected. rite, galena and sphalerite. It appeared ent, glassy quartz evidently secondary. In In the spring of 1905 I made a profes¬ to me to be unmistakably true that this cavities are imperfect crystals of magne sional visit to the Elizabeth mine. South limestone was in no sense secondary, but tite. Some of them are completely filled Strafford, Vt. This mine is a cupriferous was contemporaneous with the adjoining with tangled masses of acicular epidote. pyrrhotite. The developed lens is of rocks. The hanging wall side of the pyrite large size, and typically lenticular. On On gaining entrance to an old tunnel, bed or stratum consists of a shelly, por¬ the public road from Bethel to South I found this limestone in place. It was ous quartz, in appearance like a mass of StraflFord, I noticed numerous large observable for the whole hight of the rough-bladed crystals, and seemingly boulders of impure limestone in the stone tunnel. The pure limestone was. from etched from the lime which originally en¬ walls by the roadside. On the foot-wall 8 in. to one foot in thickness; while the closed it. This, however, occurs only side of the mine, and parallel with the banded rock in which it was observable, above the 100-ft. level where water has strike of the ore-body for three-fourths was 18 in. to 2 ft. in thickness. I ob¬ circulated more or less freely. Succeed¬ of a mile, were several strata of impure served no rocks in this locality that I ing this is another layer of sulphides limestone. The strata were not of uni¬ considered unmistakably erruptive. which lies occasionally on a stratum of form thickness, but swelled out into In Haywood county, N. C, near Big nearly pure limestone of varying thick¬ lenses several feet thick, and pinched into Pigeon river, and extending northeast, ness, sometimes against a schistose band, stringers of lime interstratified with for six miles or more, is a series of principally showing biotite and granular schistose rocks, then again swelling into pyrrhotite lenses. Beyond the fact that hornblende. The contact surface is not large lenses. In the adit tunnel piercing pyrrhotite is present, little else can be even, but pitted and hackley. the hanging wall of the vein, I also ob¬ stated, as little other than weathered out¬ Above this stratum of sulphides lies served limestone strata. Impure as these crops is exposed. At one point an old what appears to be the true hanging-wall. limestones are, I consider them as being shaft has fallen in. One wall was cer¬ This wall is a limestone, banded quite reg¬ undoubtedly contemporaneous with the tainly a decomposed granite. There are ularly with a granular but compact horn¬ other rocks and by no means of second¬ several tons of massive pyrrhotite on a blende. In places the limestone is quite ary origin; neither are they the result nearby dump. On this dump are many pure; in places mixed with impurities of secondary infiltration, nor the result pieces of porous hornblende, deeply iron- arranged regularly, and presenting the ap¬ of the decomposition of lime bearing stained and rotted. No limestone was pearance of a coarsely foliated gneiss. minerals. certainly observed by me, but the rusty This stratum is certainly one foot to 18 While at South Strafford I visited the hornblende strongly suggested an orig¬ in. thick. In places this band is pure old Vershire mines, about seven miles inally calcareous rock from which the crystalline limestone. This occurrence of northeast of the Elizabeth. I saw no lime had been removed by weathering. limestone is not accidental or local, but limestone at this mine; but the object of In April, 1906, I was sent to the Cul- is distinctly visible in many places on my visit was mainly to study the mine lowhee mine in Jackson county, N. C. This the 50- 100- and 150-ft levels. There THE ENGINEERING AND MINING JOURNAL. July 28, 1906.. can be no doubt but this limestone is CAGES.—Charles Mulhearn, Freeland, Pa., The London Colliery Guardian says that assignor of one-third to Roger J. O’Donnell original and is a regular accompaniment it is stated that the United States Steel and one-third to Charles Phillips, Freeland, of the rocks and ore series at this place. Pa. Filed March 5, 1906. Corporation has placed a contract, through 825,348. PROCESS OF PRODUCING LOW- Whether or not the instances cited a London concern, for the shipment of CARBON FERRO ALLOYS.—Edgar F. Price, Niagara Falls, N. Y. Filed Nov. 14,. strengthen the position of those who are 250,000 tons of manganese ore. This con¬ 1905. inclined to hold that the great sulphide tract is for Russian ore, and is the only 825,353. SAFETY GEAR FOR MINE SKIPS. CAGES, ETC.—Bruno Schleslnger and Ed¬ lenses of the Appalachian system are re¬ one of any magnitude of its description win G. Weldon, Johannesburg, Transvaal. placements of bodies of pure limestone. placed for some 12 months past. Filed Dec. 20, 1904. 825,359. —ELECTRIC FURNACE.—Frederick 1 leave for others to decide. In a way, I T. Snyder, Oak Park, Ill. Filed July 15. am compelled to leave the question much 1904. Patents Relating to Mining and 825,386. ELBCTRICr FURNACE.—John F. as I stated it in the beginning. The Metallurgy. Hammond, Brewster, N. Y. Filed Sept. 18. assumption, that* replacement has oc¬ 1905. 825.446. TILTING ORE-ROASTING FUR¬ curred, cannot be actually substantiated, UNITED STATES. NACE.—Thomas Edwards, Ballarat, \ icto- from the fact that two bodies cannot oc¬ rla, Australia. Filed Aug. 7, 1905. 825,522. REVEUBI^ATORY FUUNACK cupy the same space at the same time. Ihe following is a list of patents relating FOR THE PRODUCTION OF STEEL—Vic¬ to mining and metallurgy and kindred sub¬ tor Defays, Brussels, Belgium. Filed July Even seemingly partial replacement does lets, Issued by the United States Patent 28, 1903. Office. A copy of the specifications of any of not make evidence finally conclusive; it these will be mailed by The Engineering 825..536. CONTINUOUSLY Ol’ERATING RE¬ merely strengthens assumption. .^ND Mining Journal upon the receipt of 26 TORT FURNACE.—Richard C. Hills. Den¬ cents. In ordering specifications, correspond¬ ver, Colo. Filed July 3, 1905. Instances of partial replacement of ents are requested to name the issue of the 825,643. BLAST-FURNACE-CHARGING AP¬ .Journal in which notice of the patent ap¬ PARATUS.—Edward L. Ford and Charles limestone beds by deposits of sulphides peared. ^ F. Parks, Youngstown. Ohio. Filed Dec. are, however, by no means lacking. One 28, 1905. (1 the most striking instances within my Published Week Endiny July 17, 1906. 825,672. MAGNETIC ORE SEPARATOR.— 82.5,912. RETORT-HEATING APPARATUS. Richard R. Moffatt, Brooklyn, N. Y.. as¬ personal knowledge is found in the great Ernst G. B. Koertlng, Marlendorf, near signor to Imperial Ore Separator Company, Berlin, Germany. Filed April 21, 1905. a corporation of New York. Filed July 19. "contact veins,” so called, at Gilman, Colo. 1904. 825^20. PROCESS OF TREATING PREC- 825,699. ORB CRUSHER.—Isaac N. Bonsai. Here great deposits of pyrites, galena and IOUS-METAr.,-BEARING MATERIALS_ Charles W.Merrlll, I.,ead, S. D. Filed Oct. Oronogo, Mo. Filed Aug. 25, 1905. sphalerite (often too ft. thick) are sharp¬ .11, 1905. ly parted by great walls of limestone, ir¬ 825.928. AUTOMATIC-DUMPING ELEVA¬ GREAT BRITAIN. TOR-CAGE.—William J. Newman, Chi¬ regularly and deeply etched. Within the cago, Ill. Filed July 19, 1905. body of discomposed sulphides are great 826,004. DEVICE FOR MAKING AND The following is a list of patents published: SHARPENING ROCK-DRILLS.—IVilliam by the British Patent Office on subjects con¬ masses of gypsum. Numerous other oc¬ W- Fr.mclsco, Cal. Filed Dec. nected with mining and metallurgy currences of evident replacement of lime¬ stone by sulphides in the 'Rocky Moun¬ 826,099. METHOD OF TREATING COP¬ Published Week Ended June 30, 1906. PER AND NICKEL MATTE.—.John A. 15,809 of 1905. TEMPERATURE INDICAT¬ tain region have come within my expe¬ Gilman, West Falrlee, Vt. Filed Oct. 21, ING.—W. Taylor, I.,elcester, and F. J. Mnd- ford, London. A method of indicating the- rience. hut the above is by far the largest 826,108. ROCK-DRILL.—James Mathers, temperature of recalescence in steel by mak¬ one that I have given. San Francisco, Cal. Filed Sept. 22, 1905. ing use of the sudden fall in magnetlv per¬ 826,114. DESILVERIZING LEAD BULLION. meability at tbls temperature. —August Raht, San Francisco, Cal. F'lled 17.370 A of 1905. WATER COOLING FOR The Rush to Cobalt. Oct. 11, 1905. ROASTING FURNACES.—A.V. Leggo, Bal¬ 826.158. HOISTING-ENGINE.—Charlie A. larat, Australia. Improved method of cir¬ Frazier, Nashville, Cal., assignor of one- culating the water In rabble shafts and third to Thomas J. W'iison, Nashville, Cal arms in roasting furnaces. Much disappointment is felt by those Filed April 2, 1906. 17,870 of 1905. ROCK-DRILL ATTACH¬ who at the outset of the season anticipated 826,178. COMBINED SCREEN SIZING AND MENT.—E. M. Weston, Johannesburg. An apparatus attachable to the drill bits of a big rush of miners and others to Cobalt. JIGGING APPARATUS FOR ORES— George O. Marrs, Walker, Arlz. Filed April rock drills for the purpose of introducing: The business men of Cobalt, Haileybury 18, 1906. water through the bit into the liole. 826,184. COAIj-SLACK LEVELING AND •20.941 of 1905. LEACHING TANKS.—A. E. and New Liskeard, who had made exten¬ W. Constans. Nelson, B. C. Improvements. TAMPING APPLIANCE.—William J. Mur¬ sive preparations in expectation of a big ray, Denver, Colo. Piled Jan. 30, 1906. In lixiviating tanks, chiefly in connectloa with a filtering lining. 826,214. APPARATUS FOR MANUFAC¬ trade, have not realized their anticipa¬ 23,841 of 1905. SULPHURIC ACID CON¬ TURING GAS.—John E. Allen, Columbi¬ CENTRATION.—A. Galllard, Barcelona. tions. The influx has been very much ana, Ohio, administrator of James .T. Spain. Improvements in sulphuric-acid con¬ Johnston, deceased, assignor to Albert C. centration, in which sprays of acid and hot smaller than was hoped for. Several rea¬ Ellis, Pittsburg, Pa. Piled Sept. 17, 1897. sons are asigned for this turn of affairs. air are brought into contact. 826,312. BELT-CONVEYOR.—Robert M. 3364 of 1906. COAL CUTTER.—F. W. Hurd. Catlin, Witwatersrand district, Transvaal. The field for prospectors in the Cobalt Filed April 12, 1904. Bothwell, Scotland. Improvements in the inventor’s cutter bar coal-getting machine, area proper was narrowed by .the exten¬ 826,380. ROCKER.—Samuel R. SUmbaugh, the object being to keep dust and particle* sive staking of claims which went on all Chattanooga, Tenn. Filed March 3, 1905. of coal out of the bearings of the bar. 826,390. APPARATUS FOR TREATING through the winter and early spring, and Published Week Ended July 7, 1906. SLIMES.—Carlos W. Van Law, Guan¬ 6611 of 1906. PURIFYING ROCK SALT.— was further limited by the decision of ajuato, Mexico. Filed July 15, 1904. H. Tee. IJverpool. Ihirlfylng rock salt by- 826,411. PROCESS FOR SEPARATING melting it and forcing steam and hot air the provincial government to exclude FINELY-DIVIDED MATERIAL.—Francis through it. prospectors from the Gillies timber limit E. Elmore, London, England. Filed July 13,811 of 1905. WELDING STEEL.—E. R 10, 1905. Davies and G. W. Clark, Wessels Nek, Na¬ to the south, which it was confidently ex¬ 826,435. EXTRACTING METALS BY ELEC¬ tal. Welding hard tool steel to mild steel pected would be thrown open. Hence the TROLYTIC MEANS FROM ORBS.—Alex¬ by immersing the two pieces in a bath of ander Lenart, Jr., Budapest, Austria- flux, consisting of silica and carbonate of great body of prospectors was driven far¬ Hungary. Filed Aug. 18, 1905. lime, and maintained at the temperature of ther afield—up the Montreal river, to oxidation of iron. Published Week Ended July 10, 1906. 17,250 of 1905. ORB SEl’ARATION. — F. the Wendigo lake area, or to other points 825,292. MEANS FOR DISTRIBUTING Windhausen. Berlin. Separating ores from- MINE RESIDUES.—August L. E. Bergert, gangue by finely crusblng and introducing in the northern region, accessible from Johannesburg, Transvaal. Filed March 28, them by means of a blast of air into a re¬ the railway. Many have gone to the ad¬ 1905. volving cylinder, the heavier particles beings 825,297. PROCESS OF EXTRACTING AM¬ caugbt on the revolving surface and the jacent mineral region in Quebec province. MONIA FROM GASES.—Rudolph Brunck, lighter passing out with the blast. The mining regulations have acted as a Dortmund, Germany. Filed Aug. 21, 1905. 22,610 of 1905. BLAST-FURNACE CHARG¬ 825.303. APPARATUS FOR MANUFACTUR¬ ING.—A. Sahlln, Brussels. In apparatus, discouragement to thorough prospecting ING CEMENT.—Carleton Ellis, New York, for charging blast furnaces, making the- work—more especially the mistaken policy N. Y., assignor to Combustion Utilities Com¬ intermittent rotation of the charging spout pany, New York, N.. Y., a corporation of dependent on the apparatus controlling the- of permitting two or more applicants to New York. Filed May 5, 1905. dellvery of the charge in the hopper. stake the same claim. 825,326. ROASTING FURNACE.-Frank Kle- 494 of 1906. REFINING PIG IRON.—H. .7. petko, New York, N. Y. Filed Nov. 6, 1905. B. Delporte, Liege, Belgium. In the pro¬ cess of refining pig iron in a Siemens-Mar¬ Stone-setters, if not prevented, frequent¬ 825.331. APPARATUS FOR SEPARATING tin furnace, withdrawing into a ladle the- LIQUIDS FROM SOLIDS.—William H. Lo¬ metal when it has been partially refined' ly attach booms to the columns of a mas. Doornfontein, near Johannesburg, and returning it to the same furnace after Transvaal. Filed Jan. 11, 1905. building to hoist their stone to position. the slags have been removed from the fur¬ 82.5..1.14. SAFETY DEVICE FOR MINE nace. July 28, '1906. THE ENGINEERING AND MINING JOURNAL. 173

Personal. R. C. Canby, of El Paso, Texas, was a ination of the New Manhattan district recent visitor in New York. He intends in Nevada during the present summer. Mining and metallurgical engineers are in- He will also visit the Goldfield and Bull¬ A-ited to keep The Engineebinq and Mining to spend the month of August in Connec¬ .loiiUNAii Intormed of their movements and ticut, taking a much needed vacation. frog districts. appointments. H. T. Keltic, of Joliet, Ill., is in Brecken¬ James Gayley, first vice-president of the Albert Voberle, of Butte, Montana, was ridge, Colo., inspecting the property of United States Steel Corporation, sailed in Denver last week. the Washington-Joliet Mining and Milling for England, July 17. One or two con¬ F. Augustus Heinze has returned to Company, of which he is president. tracts have been made for the installation Butte from a business trip to Salt Lake. Robert Job, chemist of the Philadel¬ of the Gayley dry blast at British furnaces Frank Nicholson left Joplin, Mo., July phia & Reading Railroad, at Reading, Pa., and others are pending. 12, on a trip to New Mexico, on profes¬ has resigned and has joined the firm of C. W. Leimer, formerly superintendent sional business. Booth, Garrett & Blair, Philadelphia. of the Montana Zinc Company at Butte, C. K. Leith, of Wisconsin University, at John Gross of the firm of Gross & Mont., is now at Graneros, Chile, where Madison, returned from a visit to Cobalt, Cohen, mining engineers at Denver, re¬ he is superintendent of the concentrator Ont, this week. turned there a few days ago, from a six of the Braden,Copper Company. He left this country for Chile last February. T. P. Lambing has just returned from a months’ professional trip to Nicaragua. trip to Breckenridge, Colo., where he has W. Weston, mining engineer of the Charles T. Arkins has been appointed extensive placer mining interests. Denver, Northwestern & Pacific Railway consulting engineer to aid in the investi¬ gation by the Canadian government of Maurice Eisenberg, of the Butte Hill (Moffat road), is back at the head of his the channel gravels of the Yukon terri¬ Copper Company, operating in Butte, has department, after four months’ severe ill¬ tory. He is mining expert for the Allis- returned frorii New York to Butte. ness. Chalmers Company at its Seattle office. David H. Lawrance, mining engineer, of Robert J. Coleman, of Los Angeles, F. C. Calkins, geologist of the United Breckenridge, Colo., has opened an of¬ Cal., has been appointed manager of the States Geological Survey, assisted by D. fice in Denver at 406 Temple Court Build¬ Lluvia de Oro Gold Mining Company, in F. McDonald, has begun a detailed study ing. Chihuahua, Mexico, and has assumed charge. of the areal geology of the Philipsburg Marius R. Campbell, United States Geo¬ quadrangle in Montana. W. H. Emmons H. Hayman Claudet, of Rossland, B. C., logical Survey, will make Salt Lake City will afterward take up the economic geol¬ who has been abroad on professional busi- his headquarters during the present sea¬ ogy of the district. son. I ess for several months, passed through New York this week on his way home to W. C. Phalen, of the United States R. Ruetschi has resigned his position as Rossland. Geological Survey, has recently made an engineer with the Balbach Smelting and examination of copper deposits in Rappa¬ R. E. Broadbent, mineral expert in the Refining Company at Newark, New Jer¬ hannock county, near Washington, Va. service of the Canadian Government, has sey. An exhaustive report on the copper de¬ returned to Ottawa after 18 months’ ab¬ L. Hennessy, of Salt Lake City, posits of the whole Appalachian region is sence, superintending mineral displays in Utah, has gone to Rhyolite, Nev., where being prepared under the direction of foreign exhibitions. he will have charge of the Four .\cres Walter Harvey Weed. mine. James Campbell of St. Louis, Mo., has S. F. Emmons, geologist of the United assumed the presidency of the Lluvia de J. D. Shilling, late of Michigan, has States Geological Survey, in charge of Oro Gold Mining Company, vice H. E. been appointed superintendent of the the section of metalliferous deposits, will Cary, resigned, and the offices have been Utah Copper Company's mines at Bing¬ personally supervise investigations made removed to St. Louis. ham, Utah. this summer by members of the survey in J. B. Tyrrell, who is at present looking H. T. Keltic, of Joliet, Illinois, pres¬ various mining regions in the West. He after the iron-ore interests of Mackenzie ident of the Washington-Joliet Mining will visit Butte, Mont., Ely, Nev., and & Mann, in northern Ontario, was in To¬ and Milling Company, is visiting Brecken¬ other camps. ridge and making an inspection of the ronto recently. Prof. W. E. Hidden, of New York, company’s interests there. J. Liddell, an engineer in the em¬ during a recent visit to Cobalt, Ont., dis¬ ploy of the De Beers diamond mines in Charles S.. Downing, of Kansas City, covered a silicate or carbonate of cobalt, South Africa, spent a few days in Butte. Mo., setretary and treasurer of the Wel¬ entirely unknown in North America, and Mont., recently. lington Mines Company, is now located hitherto only known to occur at the in Breckenridge, Colo., looking after that Joseph E. Gay, president of the Atlantic Schneeberg cobalt mines of Saxony. It Company's interests there. and other copper mining companies, has is a pink mineral occurring as'an incrus¬ gone to the Lake Superior district to in¬ H. A. Guess, resident manager of the tation. Professor Hidden also identified spect conditions. Silver Lake properties near Silverton, has polybasite among the minerals of the re¬ gion, being its first discovery in Canada. M. L. Cook, civil and mining engineer. been appointed general superintendent of Searchlight, Nev., has published a map of the reduction and concentration works of the Searchlight district. Nev.. showing all the Cananea Copper Company in Mexico. Obituary. of the surveyed claims. Carl Scholz, of Chicago, president of J. De Forest Junkin, of Coalgate, Ind, the Rock Island Coal Company and min¬ John W. Robinson died at his home at Ter., president of the Coalgate Company, ing expert for the Rock Island-Frisco Graham Forge, Va., July 16, aged 67 operating coal mines at that place, is in system, is in Texas on business for his years. He was one of the pioneers in the New York on business. company. iron industry of the valley of Virginia. L. S. Austin, professor of metallurgy James Elliott, of Haileyville, Ind. Ter., He founded the works which subsequent¬ at the Michigan College of Mines, spent vice-president and general manager of the ly developed into the Virginia Iron, Coa! a few days in Denver last week, on his Hailey-Ola Coal Company, left July 16 for and Coke Company, and he was actively way to the Pacific coast. a vacation of two weeks, which he is connected with that company until his spending with his family at Colorado death. George W. Maynard, of New York, has returned from a professional trip in Utah, Springs. Stanley Pearce, well known through¬ Colorado and the Southwest, and has now F. L. Ransome, United States Geologi¬ out the West as an engineer and metal¬ gone to Georgia and .Mabama. cal Survey, will make a personal exam¬ lurgist, died at Culiacan, Mexico, July 10. 174 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

Mr. Pearce was the third son of Dr. sales agents of the Shaw Eclipse drill, are 42 in., and the air cylinders 68 in. in Richard Pearce, whose name is closely received an order a few days ago for 50 diameter with a common stroke of 54 in., identified with the early development of of their machines from the Copper Queen the unit running at a maximum speed of the Rocky mountain region. His brother, Consolidated Mining Company, at Bisbee, 75 r.p.m. for blowing and 84 r.p.m. for Harold Pearce, is at present manager of Arizona. electric work. The capacity of air de¬ the Boston & Colorado Smelting and Re¬ The By-Products Coke Corporation, livery at this speed will be 33,000 cu.ft. of fining Company at Argo, Colorado. At Chicago, will erect 40 additional ovens at free air per minute at 18 lb. pressure, with the time of his death, Mr. Pearce was in its South Chicago plant. A battery of 120 a maximum pressure delivery of 30 lb. charge of the Gaynon mine. was recently completed, but owing to the This type of engine will not only be used heavy demand for this material on an in¬ for blowing purposes, but also for elec¬ Societies and Technical Schools. creased output is required. trical generation. In all sizes a resem¬ The De La Vergne Machine Company, blance to the horizontal tandem heavy- International Mining Conference—At a New York, is installing at the E. & G. duty steam-engine design is strong. For meeting held in connection with the third Brooke Iron Company’s plant, Birdsboro, several months a 350-h.p. engine of this International Colliery Exhibition in Lon¬ Penn., refrigerating machinery of 350 tons type has been in regular operation on don a movement was started to call an capacity to be used in drying the air blast furnace gas at the Edgar Thompson International Conference, to be held in blast for their furnaces. The air is passed Works, Pittsburg, generating electricity London, in 1908, to discuss subjects of in¬ over coils of pipe containing cold brine or for motor-driven foundry machinery. The ternational interest, especially the unifica¬ ammonia. Part of the moisture contained engine was installed largely for experi¬ tion of statistics, the prevention of acci¬ in the air is deposited on these pipes, the mental purposes and has given excellent dents and technical mining matters gener¬ part remaining being practically constant operating results. This engine has just ally. A committee was appoined to organ¬ so that the humidity of the blast is uni¬ completed a 30-day continuous load and ize and further the movement. H. Greville form. Frank C. Roberts & Co., Phila¬ duty test, operating 24 hours per day and Montgomery was chosen chairman; Allan delphia, Penn., are the engineers. seven days per week. Greenwell was appointed secretar}^ and The DeRemer Water Wheel Company, has established his office at 31 Fumival Denver, Colorado, has just shipped the Trade Catalogs. street, Holbom, London. So far the move¬ following water wheels: One special ment is confined to British and European phosphor-bronze 12-in. motor to operate Receipt is acknowledged of the follow¬ mines. under an effective head of 770 ft. and de¬ ing trade catalogs and circulars: University of California—At Berkeley, velop 100 h.p., for the Bingham Metals Scully Steel and Iron Company, Chi¬ Cal., preparations are being made for mov¬ Mining Company, Tooele, Utah. Six spe¬ cago, Ill.; Pp. 144; illustrated; paper, 4 by ing the mining department of the Univer¬ cial 2o-in. wheels, in batteries of three 6 in. 1906. sity of California from its old quarters in¬ each, forming one unit of power, for the Ohio Brass Company, Mansfield, O., to the new Hearst Memorial Mining High Creek Power Company, Richmond, Monthly Bulletin, July, 1906. Pp. 12; il¬ Building which will shortly be completed. Utah. One 6-ft. wheel for the Bunker lustrated; paper, 6 by 10 in. Part at least of the building will be ready Hill Consolidated Mines, Austin, Nev. Oswego Boiler and Engine Company, for use when the fall term commences in Two 6-ft. double-nozzle wheels for the Oswego, N. Y. Bulletin No. 40, Steel August. This new building was provided Hancock Mining Company, Alpine, Colo. by the generosity of Mrs. Phoebe Hearst Tanks. Pp. 15; illustrated; paper, 8 by 5 The Pelton Water Wheel Company has in. 1906. as a memorial to her late husband. Sena¬ practically completed its new works De LaVergne Machine Company, New tor George Hearst, who made his for¬ located at Nineteenth and Harrison York City. Hornsby-Akroyd Oil En¬ tune by the mining industry and was iden¬ streets, San Francisco, and they will be gines. Pp. 82; illustrated; paper, 10 by tified with it for many years. The struc¬ in complete running order by Sept. i. 6 in. 1906. ture is of great blocks of California gran¬ These shops were under construction be¬ ite and has cost upwards of $500,000. It fore the fire. Through the New York Lombard Governor Company, Ashland, is the finest mining building possessed by works and temporary San Francisco Mass. Bulletin No. 106. Type Q Gover¬ any college or university, designated for works, the Pelton Water Wheel Com¬ nor; Pp. 3, illustrated; paper, 7x10 in. the purpose, and will be fully equipped. pany has been executing orders as usual. April I, 1906. The Pelton-Francis turbine, . recently Witte Iron Works Company, Kansas City, « Industrial. placed on the market by this company, Missouri. Witte Gas, Gasolene, Naptha proved a valuable adjunct to the com¬ and Distillate Engines; Pp. 40, illustrated; In the advertisement of the J. Geo. pany’s business. This is a new de¬ paper, 6x10 in. Leyner Engineering Works Company, parture in water-wheel practice, and is Stanley-G. I. Electric Manufacturing Denver, Colo., which appeared on the attracting the attention of engineers. The Company, Pittsfield, Mass. Poljrphase In¬ front cover of the Joxjrnal of July 14, company has a temporary office at 517 duction Motors. Pp. 8; illustrated; paper, there was a serious error in proof-read¬ Market street, San Francisco, but expects 8 by 10 in. 1906. ing. The text read “Hoists-any ca¬ to be permanently located in the Monad- Ph. Vonvillain & E. Ronceray, Paris- pacity fom 5 h.p. to 100 h.p.” It should nock Building in August. have read, “Any capacity from 5 h.p. to Aubervilliers. The Universal System of The contract recently placed by the 1000 h.p.,” this being the actual range. Machine Molding; Pp. 35, illustrated; in¬ Indiana Steel Company with the Westing- dexed ; paper, 6x10 in. The Ernst Wiener Company, of New house Machine Company, Pittsburg, is York, manufacturers of industrial track, Crocker-Wheeler Company, Ampere, for eight large gas engines, uniform in N. J. Bulletin No. 67. Form I-F Varia¬ cars and equipment, has opened a branch size and capacity. Elach gas engine, as office in the GazHte Building, Pittsburg, ble Speed Motors; Pp. 12, illustrated; pa¬ an electric unit, will have a rated capac¬ per, 7x10 in. June 1906. Penn., in charge of Paul Muller. ity on blast-furnace gas of nearly 3000 The Denver office of the Allis-Chalmers h.p., corresponding to a rating of 4000 h.p. Niles-Bement-Pond Company, iii Company is now in the McPhee Build¬ on natural gas. The unit will be ar¬ Broadway, New York City. Second-hand ing, Seventeenth and Glenara streets. ranged in twin-tandem fashion, each side Metal Working Machinery, List No. 12. The El Paso, Texas, office is in the consisting of two double-acting gas- Pp. 60; paper, 4 by 6 in. 1906. Guarantee Trust building. cylinders and one blowing cylinder in the Flint & Walling Manufacturing Com¬ Smith, Parker & Boyd, of Denver, the opposed arrangement. Power cylinders pany, Kendallville, Ind. Catalog No. 47, July 28, 1906. THE ENGINEERING AND MINING JOURNAL/ 17s

Tanks and Substructures. Pp. 48; illus¬ Special Correspondence. that town. Both mines have been idle trated; paper, 5 by 9 in. 1906. for years, more or less litigation having Wm. H, Bristol, 45 Vesey street. New San Francisco. July 19. been connected with them. York City. Bulletin No. 4, Scales for The largest oil contract ever made in An important strike of gold ore has Electric Pyrometers. Pp. 4; illustrated; the Southern California oil fields is that been made in the Mooretown Ridge sec¬ paper, 8 by 10 in. June 25, 1906. for 20,000,000 bbl. for the Toyo Kisen tion in Plumas county, owned by Wil¬ De La Vergne Machine Company, New Kaisha, the Japanese steamship company, liams & Sons, of Lumpkin. The mine York. Seventh Catalog. De La Vergne the oil to be furnished by the Gracioza has been under bond to San Francisco Refrigerating & Ice-Making Machinery; Oil Company, of San Francisco, whose men who were such heavy losers by the Pp. 47, illustrated; paper, 6x9 in. 1906. holdings are in Alamos district, Santa fire that they had to give k up and let Barbara county. The amount contracted it revert to the owners. It is a large low- Northern Electrical Manufacturing for is to be delivered within a period of grade proposition, but specimen rock is Company, Madison, Wis. Northern Sin¬ 10 years, but will be furnished in three being sorted out and run through the gle Voltage Variable Speed Systems. Pp. years by delivery of some 20,000 bbl. two-stamp mill, that returns $30 to $50 36; illustrated; paper, 8 by 10 in. 1906. daily to the tank steamers at Port Har¬ per ton in free gold. Allis-Chalmers Company, Milwaukee, ford. The Toyo Kisen Kaisha is now The Stauffer Chemical Company, here¬ Wis. Bulletin No. 1052, Allis-Chalmers building two large steamers to use on the tofore located in San Francisco, has pur- Type “B” Motors and Generators. Pp. run between the Orient and San Fran¬ cha<;ed in West Berkeley twelve acres of 12; illustrated; paper, 8 by 10 in. May, cisco, which are to burn oil, and the com¬ land, extending from the bay to Seventh 1906. pany will also fit its passenger steamers street. The property upon which the Vajen-Bader Company, Richmond, In¬ with oil burners, finding it less expensive chemical company will build adjoins the diana. Protection against Ammonia than Japanese coal. It is the intention of overland line of the Southern Pacific, and Fumes, Poisonous Gases, Fire Damp, the company to import into Japan the is about a quarter of a mile from the pro¬ Smoke, Flame; Pp. 15, illustrated; paper, crude oil, refine it there, and use the resid¬ posed town wharf. 6x8 in. uum for fuel purposes. It is believed that The old Tecopah silver mines in Inyo Ingersoll-Rand (^ompany, ii Broadway, in this matter the company is to receive county, just north of the San Bernardino New York. Compressed Air Pumping a concession from its Government. county line, are to be reopened. A half Systems; Pp. 24, illustrated; paper, 4x6 The California State Board of Trade interest in this property has been sold by in. Catalog No. 383. The Temple-Inger- has issued circular letters to Eastern man¬ J. D. Osborne, of Los Angeles, to James soll Electric-Air Rock Drill; Pp. 40, ufacturers calling attention to the possi¬ Austin, of Philadelphia, Penn., a director illustrated; paper, 6x9 in. bilities of cement making in the State. of the Tonopah Mining Company; H. G. McMahon, of Rhyolite, Nevada; James Buffalo Forge Company, Buffalo, N. Y. There are already three cement factories, H. Lester, until recently superintendent Buffalo Air Washer and Humidifier. Pp. each of which is enlarging its plant, but 36; illustrated; paper, 7 by 10 in. 1906. the demand is so great that large quanti¬ of the Tramp Consolidated Mining Com¬ Type “K-g” Arc Lamps. Pp. 4, illustra¬ ties have to be imported from abroad and pany, at Rhyolite; and N. P. Sloan of ted ; paper, 3 by 6 in. Circuit Breakers vs. from the East. New Orleans. The price of the half in¬ terest is stated to be $150,000, of which Switches and Fuses. Pp. 12; paper, 3 by The several properties of the Cali¬ 6 in. 1906. fornia King Gold Mines situated in the $20,000 has been received by Mr. Osborne, Picacho district, San Diego county, have the balance to be paid within two years. Baldwin Locomotive Works, Philadel¬ been sold under an order issued from the The Tecopah and Gunsight mines were phia, Pa. Record of Recent Construction United States Circuit Court on June 9 opened about 30 years ago, and while No. 56, The Atchison, Topeka & Santa Fe last. The property was sold under fore¬ silver was high were made to pay, though Railway System. Pp. 30; illustrated; pa¬ closure of a mortgage for $200,000. After the ore was hauled by wagon 200 miles per, 9 by 6 in. 1906. Record of Recent the sale was concluded and the report of over the desert to Colton, Cal. This dis¬ Construction, No. 57, Common Standard the special master rendered, John I. trict, in which are the Tecopah mines, is Locomotives of the Associated Lines. Pp. Bishop was appointed trustee in the in¬ now within shipping distance of the Ton¬ 24; illustrated; paper, 9 by 6 in. 1906. terest of the stockholders. opah & Tidewater Railroad, which is The Yuba Construction Company, an¬ building through the heart of it. Construction News. other branch of the dredge interests, or¬ The Bonanza King mine, 10 miles from Trinity Center, Trinity county, is to have Alta, Utah—The Albion Mining Com¬ ganized for the chief purpose of extend¬ ing the business of the dredge people as a new 20-stamp mill. The mine is on a pany is considering the question of build¬ mountain 7000 feet above the sea level. ing a mill. William Hatfield, of Salt regards mercantile, manufacturing, con¬ struction, making machinery and building It is reached now only by a trail. For Lake City, is manager. of plants and homes, has filed articles of four months a large crew of men has been Silver Peak, Nevada—The Valcalda incorporation. Marysville is named as the at work building a road from the Carr- Mining Company is preparing to put in a principal place of business, and the life ville-Trinity Center road to the mine, five 20-stamp mill. Curtis L. Knight, Silver of the corporation is fixed at fifty years. miles. Peak, Nev., is in charge. The directors are W. P. Hammon, J. R. Over 5000 acres of stone land in the Fish Creek, British Columbia—It is Henderson and A. E. Boynton, of Oro- vicinity of Glass mountain have been re¬ proposed to enlarge the mill at the Eva ville; C. M. Derby and Newton Cleave- cently located in the names of C. M. De¬ mine, which now has 10 stamps. Mr. land, of Marysville. pew and W. A. Fox, of San Francisco, Gracey, Camborne, B. C., is manager. Mrs. Oelrichs and Mrs. Vanderbilt, and the notice filed for record at Yreka, Lluvia de Oro, Chihuahua, Mexico— daughters of the late James G. Fair, have Siskiyou county. The land, which is The Lluvia de Oro Gold Mining Com¬ authorized their agent in California, to almost destitute of timber, is in township pany will erect a new mill having a daily open up the Morgan Hill and Crystal 43 north, range two east, and is 10 miles capacity of 100 tons, and put in a slimes mines at Angels camp. Shafts were sunk beyond the present terminus of the Mc¬ plant of equivalent capacity for cyanida- there some years ago, but the mines have Leod River Railroad. Glass mountain tion. The plans for both plants are in never been developed. Work will be was so named because of its flint-like preparation. The main office is at St. commenced at once, which will give em¬ rocky formation. In the lava fields near Louis, Mo.; the mine manager is at ployment to a large number of men. The by are deposits of pumice stone that has Lluvia de Oro, Mexico. Robert J. Cole¬ Crystal is near the Lightner mine at An¬ considerable commercial value, for sev¬ man is manager. gels, and the Morgan Hill is not far from eral carloads were shipped during the 176 THE ENGINEERING AND MINING JOURNAL. July 28, 1906,

past two years to San Francisco, teams vein. The shaft on the property of the tions have never been experienced here be¬ hauling it to the railroad. The locators Butte Copper Exploration is 735 ft. deep, fore. claim that the pumice stone and flint-like and Superintendent McGee reports the An option on a control of the Ohio Cop¬ rock, mixed in proper quantities with ce¬ ground changing for the better. At the per Company was given F. Augpistus ment and gravel, make a variety of con¬ Lewisohn General Development, cross¬ Heinze not long ago. His engineers vis¬ crete that is lighter and more durable cutting at a depth of too ft. from the ited Bingham and examined that mine, than any kind used at present by builders. new shaft on the Montgomery claim for and reported that there were about 400.- The newspapers have reported an im¬ the vein of copper caught in the Bertha, 000 tons of ore blocked out. After re¬ portant strike in the Jumper mine, at adjoining on the north, is progressing. ceiving the reports, Mr. Heinze concluded Stent, Tuolumne county, the lead being The Bertha, a triangular fraction owned the tonnage was not sufficient, but thought said to be wide and carrying much coarse by W. D. Thornton, president of Raven, well enough of the property to spend $50.- gold. On communicating, however, with and vice-president of the Red Metal, and 000 of his own money in development to M. D. Kelly, the superintendent, he says several other claims owned by Thornton determine to his satisfaction that the ore there has been no strike of importance and others are to be thrown into a com¬ deposits continue to the deep. This propo¬ recently, though the vein formation looks pany havng a large capitalization. The sition was accepted, and the work is to be very favorable in the winze which is be¬ Bertha is the only producer in the group. inaugurated under the direction of Mr. ing sunk from the 1400 level. It is reported in Butte that Coalition is Heinze’s engineers forthwith. In the negotiating for the purchase of the prop¬ meantime, the mill will be kept in opera¬ Bntte. July 21. erty of the Pittsburg & Montana, and tion, treating 200 tons a day. The pres¬ Mining operations in Butte have never that the deal is nearing consumma¬ ent gross earnings of the mill aggregate been so extensive as they are at present. tion. The Pittsburg is shipping 125 tons about $20,000 monthly. Amalgamated is working all of its mines of ore a day to the Washoe and is open¬ The Standard Copper Company has systematically and is producing a greater ing up good reserves in winzes below the been organized to develop the Sagpnaw, tonnage than ever before. It is open¬ i200-ft. level. Amelia, Burning Moscow, Deems and four ing up mines in which known orebodies other lode mining claims in Bingham and near the Boston Cqpsolidated. Elastern exist that have not been operated for Salt Lake City. July 20. years, and deepening several shafts with and Los Angeles capital is interested in a view of cutting out ore reserves upon The United States Smelting, Refining the enterprise, and the officers are: H. W. which it can depend for future supply. and Mining Company has placed its new George, president; Joseph Sauer, vice- Coalition, North Butte and the Clark in¬ concentrating mill at Bingham Junction president; H. P. Clark, cashier of the terests are all operating full capacity. La in commission, and it is working on the Commercial National bank of Salt Lake, France copper is having a hard struggle low-grade silver-lead ore from the Old treasurer; W. E. Hubbard, of Salt Lake, 'with the water in the old workings of Jordan & Galena mines at Bingham. The secretary. the Lexington property. Since it began plant is handling about 120 tons a day. A deal has been consummated by which pumping it has met with several accidents The Holderman Filter Tank Company, the control of the Strickly-Montezuma that delayed the work and left the flood of Salt Lake, which has a lease on the Mining Company, of Bingham, passes almost at the mark where it was when the Consolidated Mercur’s Manning mill to Alfred J. Betties, chief metallurgist of pumping began. The company is still dump at Manning, Utah, has its plant the Newhouse mining properties, and mining copper and zinc ore in the levels about ready to start. The dump contains Peter Porter, of Salt Lake. above the 600, and is shipping the zinc to al)out 800.000 tons of ore, which, accord¬ The grading for the five new McDou- the Montana Zinc Company, and the ing to samplings, assays about $2.50 in gall roasters to be installed at the Yampa copper to the Washoe. The concentrator, gold per ton. The Holderman people smelter, in Bingham, is going ahead. in Basin, was closed down on July 19 claim they can save all the values but The new Garfield smelter is being nutil such time as the company rejuve¬ about 50c. per ton. gradually warmed up, and the manage¬ nates the old plant of the Basin & Bay The ore and bullion settlements re¬ ment expects to have the plant ready for State Company, also in Basin, which Mr. ported by the Salt Lake banks last week the steady reduction of ores by Augpist. Heinze bought for La France two years aggregated a total of $455,800, while the The United States Government is doing ago. The output of ore from the Lexing¬ smelters of the Salt Lake valley turned some probing into alleged fraudulent coal- ton is a little less than 100 tons a day. out about 2,000,000 lb. of copper, gold land transactions in this State. The lands The Red Metal smelter, formerly United and silver bullion. involved are mostly in Emery and Carbon Copper, was closed July 15, and will The Bingham Monitor Mining Company counties. be dismantled as soon as possible. has been incorporated, with Salt Lake as Control of the South Columbus mine at East Butte Copper is shipping 20 tons headquarters. The officers are: President, Alta has been acquired by Tony Jacobson, of ore a day to the Washoe and running G. R. Cleaveland; vice-president, Rob¬ general manager of the Columbus Consol¬ the remainder of its production, about ert Palmer; secretary, E. J. Wilkinson. idated at Alta, and associates. The prop¬ 20 tons, through its own concentrator. The company owns the Ruth and Moni¬ erty is being developed by an adit, and This ore is mined by tributers on a tor groups in Bingham. adjoins the Columbus Consolidated prop¬ royalty of 25 per cent. It is equipping its Several companies have posted divi¬ erties. Dutton shaft with heavier hoisting ma¬ dends during the past week. The Mam¬ The Nevada Northern railroad has been chinery and sinking a new shaft on an¬ moth, 5c. a share, or $20,000; Uncle Sam completed, as far south as Cherry creek, other lot near the Yankee Boy property. Consolidated, ic. a share, or $5,000; Carisa, and the management expects to have the It is also building a precipitating plant to ic. a share, or $5,000; Grand Central, 6c. a rails laid to Ely by August 20. The road catch the copper in a lot of tailings from share or $15,000; Victoria, 6c. a share, or is to run from Cobre,*a station on the the Parrot smelter. These tailings are on $10,000; Beck Tunnel Consolidated. 254c. Southern Pacific, to Ely. a portion of the “flat” ground bought re¬ a share, or $25,000. All represent the Tin- The Honerine mine, at Stockton, will cently by the company. tic mining district. begfin production within the next few days, Raven is not doing anything. It has There is a scarcity of miners in nearly the ores to be taken out of the mine apparently given up in favor of Butte every mining camp in Utah, notwithstand¬ through the Honerine drain tnuuel. The Coalition, and its officials say they in¬ ing many of the operators have been send¬ company has expended about $1,250,000 in tend to let the stockholders carry the load. ing out for help. A shortage of labor is preparation during the past five years. Work at the Reins Copper is still in prog¬ complained of in railroads and mills, and The mine is equipped with a mill, which ress with nothing in sight save a barren in nearly all lines of trade. Such condi¬ has been placed in commission. July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 177

Dtaver. July 21. the continuity of the mineral belt farther now overcome by the pumping done at Besides the filing by the Johnson Fur¬ to the north. the Penrose and Coronado. Several par¬ nace and Engineering Company of a suit During the week a streak of mineral ties have taken a lease on the property, against the Western Furnace Company in was opened in the Winnie, belonging to and work was started this week; the shaft the United States Circuit Court, it is stat¬ the New Monarch Mining Company, Big is being cleaned out and retimbered, and ed that the former company will also in¬ Evans gulch, that fairly astonished the when this work is completed the shaft stitute proceedings against the Portland miners of the camp by its richness. The will be sunk deeper. Company and the Golden Cycle Company, values of this remarkable streak run 58 oz. The Chippewa property on Breece hill who have been using the improvements gold and 250 oz. silver per ton. The is under lease to Robert B. Estey, and the for some time past, these consisting of a main body of ore where this rich streak shaft will be sunk 200 ft. deeper to the boiler fire-box for which they claim to own comes in is 20 ft. wide and the average sulphide zone. When the claim was last patent rights. value is about $20 per ton. To the outer worked several years ago, good ore was One of the largest deals in coal land edge of the ore-shoot is an immense por¬ taken from the upper contact. Other was completed a few days ago when the phyry dike, fully 300 ft. wide, and it was properties on the hill, such as the Penn, Golden Cycle Mining Company, in con¬ alongside of this that the rich vein was Big Four, Golden Basin, Vinnie, Golden sideration of about $200,000, purchased caught; this porphyry dike comes from Eagle, Bertha, etc., are shipping the usual about 11,000 acres, a short distance east of the Little Jonny, and it is alongside of it quota of ore. Colorado Springs, where it expects to that the richest mineral has been taken The Emerald Minig Company, operat¬ mine a large quantity of coal for use at from that famous mine. Manager Mc¬ ing a tunnel in Delmonico gulch, in the its properties in Cripple Creek and at the Donald has found the streak in place 150 Tennessee Park country, has the tunnel in mill, now in course of construction at Col¬ ft. from where it was first encountered, 170 ft., and the breast is in blue lime and orado City. Two producing mines are on and he is now engaged in opening it still porphyry; it will be driven 230 ft. far¬ the property now, which will be entirely farther ahead. In appearance the ore is ther before the veins on the surface will developed. a dark sulphide, with whitish matter run¬ be caught. It is stated on good authority that the ning through it. The ore is being sacked At the Vailsburg claim. Twin Lakes, a Atchison, Topeka & Santa Fe Railroad and already there are 20 tons ready to be vein carrying uranium and iridium has Company and the Colorado Fuel & Iron shipped. In another part of the mine the been opened. Company have decided to pay the $15,000 porphyry dike was crosscut and a body of The Tiger claim, south of the Sunday, fine imposed on each of them by the Fed¬ mineral 4 ft. wide and punning high in Ball mountain, at the beginning of the eral Court at Las Vegas, N. M., for viola¬ gold was uncovered. The finding of this w’eek opened a vein of ore about 4 ft. tions of the Elkins law, the fines having rich ore so far to the northeast of the wide. The character of the ore is similar $3000 on each of five counts. The Little jonny proves that this ore-shoot ex¬ to that found in the Sunday. charges were failure to publish tariffs and tends to the Mosquito range. The ore The Grey Eagle is shipping 150 tons of giving and accepting rebates on shipments will be sent to the company’s smelter at manganese daily to the Illinois Steel of coal from Colorado to Deming, N. M., Salida. Works, at Chicago. The Morocco shaft, and the case had been in court for three At the head of Iowa gulch, above tim¬ at the foot of Harrison avenue, is ship¬ years. ber line, the mines have resumed work for ping about 50 tons daily of the same ore Of late the custom of promoters bring¬ the summer and fall, and more work is be¬ to the steel works at Pueblo. ing prospective purchasers of properties to ing done there this season than ever be¬ the scene of their operations, so that the fore. Tony Hurm, who is working the Hartshorne, Ind. Ter. July 20. latter can personally examine the proposi¬ Nora group of claims, during the week William Busby, of McAlester, Ind. tions, is coming more and more in vogue, shipped 40 tons of ore that will net $50 Ter., president of the Osage Coal ana and lately a large number of them have per ton; he is driving a tunnel on the Mining Company, and of the Great West¬ visited our mining districts. Nora. Carl Glover, from the Beckman ern Coal and Coke Company, has just pur¬ The news of the death, in Mexico, of tunnel, is packing out a shipment of 30 chased for $100,000 one-third interest in Stanley Pearce, son of Richard Pearce, tons to the. wagon road. The ore and the Osage Company heretofore held by was received with much regret. His supplies from these properties have to be the Missouri, Kansas & Texas Railway brother Harold is on the way here with packed out to the wagon road and then Company. The mines of this company are the remains. hauled to the smelter, so it has to be some located on the railroad, near McAlester. value before it can be shipped. The Con¬ This purchase makes Mr. Busby almost Leadville. July 21. tinental Chief has a force of men at work sole owner of the stock, except what is A strike that will be of considerable and will resume shipping this week. The held by James Duncan, of Alton, Ill. importance to the Leadville district was ore is coming from the lower level, where The Rock Island-Frisco system is pre¬ jnade during the week in Buckeye gulch a large body was opened last fall. paring to bore for oil near Shawnee, Okla¬ on the Buckeye place, owned by DuBois The lessees on the Silent Friend, South homa, and expects to have a drill in opera¬ & Hook. For some time they have been Evans gulch, during the week unwatered tion in a very short time. at work sinking a shaft, and when it the shaft and started drifting from the There is again talk of the Santa Fe reached a depth of 150 ft. they started to bottom; after driving for a few’ feet a building a line south from Muskogee, Ind. prospect the lower strata with the dia¬ water-course was struck and another few Ter., through Hartshorne and Honey mond drill; this was sent down several feet opened a 4-ft. vein of excellent ore; Grove. hundred feet and passed through 20 ft. of the ore is silicious in character, carrying sulphide ore, clean shipping mineral. high values in silver and some gold. Two Duluth, Minn. July 12. The owners will not give out the values, shifts are being worked on the vein to Little work is being done just now with but say that it is good enough to ship. open it up as quickly as possible. In the the new Hoover & Mason aerial clam, The shaft will be sunk to the mineral and same section the Gnome shaft, adjoining which has been designed to strip and mine the shoot will be thoroughly prospected. the Izard, will be started this week and after a new fashion. It has been installed The same formation extends to Birdseye the shaft sunk several hundred feet at the Grant mine. It is probable that gulch, and it is probable that the same deeper. the tracks of the Great Northern road, body of mineral will be caught there. For a number of years the Hioschle which run beneath the machine, will be Buckeye gulch is in the Mt. Zion district, shaft, at the head of East Seventh street, covered at that point, so that there may¬ a few miles north of Leadville, and the has been idle, the ow’ners being unable to be no further danger of impeding traffic opening of this body of mineral proves meet the heavy pumpirg experses; this is by any accident to the machine or any drop 178 THE ENGINEERING AND MINING JOURNAL. July 28, 1906. of material therefrom. It is now evident and that is to push the Mesabi during the the officers. The strength of the revolters that no ore can be shipped this year from early months when shipments are easier surprised the officers. Although the organ¬ this mine, though up to a short time ago and let the rush come on the other ranges, ization won throughout, the vote was gen¬ this had been hoped by the management. where cold weather is not quite so early, erally about 65 to 45, showing that the Stripping with the clam will probably be when the Mesabi ore would be freezing in antis are gathering strength. The conven¬ carried on during the fall and winter, the cars and pockets. tion refused to endorse any particular if it is found to work successfully, so that The Illinois mine at Baraboo, Wis., has candidates for political offices, merely the mine will be a strong shipper in 1907. been reported closed down, but it is still recommending all members of the organ¬ A fight is under way at Duluth for active, and the May and June shipments ization who had been nominated, regard¬ possession pf a part of the fee to the amounted to about 13,000 tons, of an ore less of party. Leonard and Clark mines, which are averaging 54.62 iron and 0.047 phosphorus. The new Harry E. breaker of the Tem¬ owned by the Clark Iron Company. The The daily shipments this season have ple Iron Company at Forty Fort, was matter rests upon an alleged fraudulent been slightly above those of last year, and placed in operation a few days ago, and deed and alleg^ations of certain transac¬ can be maintained at the present average it is one of the neatest in the region. It tions in the probate office at Duluth, and for an indefinite period. has a capacity of 2000 tons a day, and is the prosecution has just now completed 130 ft. in hight. The coal is taken by a its evidence. The defense will have two Platteville, Wis. July 21. conveyer 240 ft. long from the shaft to weeks or so before it can complete its The Big Jack Mining Company has just the head of the breaker. The trough of case, and until then it is difficult to say purchased all the necessary machinery for the conveyer is 4 ft. wide with a 9-in. what the result may be. The Oliver Iron a lOO-ton concentrating plant, including a pitch steel chain. On the head of the Mining Company and the Great Northern i6x36-in. Corliss engine and a 16 and breaker are two sets of heavy shaking road, by virtue of leases on the Clark and lox 14-in. Rand “Imperial” compound air screens, with a picking table 5 ft. wide Leonard mines respectively, are interested compressor. The Big Jack property is and 24 ft. long. Adjoining are three sets in the matter, and are represented in the attracting considerable attention, being of 36x36-in. breaking rolls. Altogether .defense. located in practically new territory. With the breaker is equipped with 18 screens of It has been definitely determined that the present showing there is several years’ various sizes, manufactured by the Cross no ore will be shipped this year from the work in sight. Engine Company, of Carbondale. The new workings of the Oliver Iron Mining The increasing use of galvanized iron breaker has wet and dry sides and will Company on the western Mesabi. The in mill construssible under new management, and good-sized to get Kafirs for all requirements. CALIFORNIA. crews are employed. The Boss will be The statement that the leaders don’t worked through an open cut by steam want the Kafirs to come to the Rand, so .\M.M)OR COUNTY. shovels San Juan is best known as a as to have an excuse for the imj)oriation Defender—.As this mine at Defender gravel-mining center. of Chinese, is an absurdity. has been reported upon by experts, and PLACER COUNTY. The Simmer & Jack mine heads the list their report verified, it is expected that a Pond—At this claim, Todd valley, for May, the output from this .^o-stamp sale of the property w’ill shortly take owned by D. Rode, wdth G. W. Snyder as proposition l>eing 20.104 oz. The Robin¬ place. superintendent, a flume for washing the son. with 210 stamps, is just behind it DEL NORTE COUNTY. gravel is being put in. with 19.544 oz. The average yield ap¬ Coon Mountain—This placer mine has pears a bit higher for the month, there Southern Cross—In this mine. Humbug been bonded for $25,000 to .A. T. Lund- being 15 companies retuming a yield of district, near Auburn, work is to be re¬ gren, of Jacksonville, Oregon, who will 40s. and over per ton crushed. The in¬ sumed. There is a lo-stamp mill already shortly commence work upon it. creased yield per ton is due principally to for operation, and 10 more stamps will be the fact that many of the mines now have EL DOR.VDO COUNTY. added at once. sufficient labor to work their thin reefs Horseshoe Flat—This property between PLUMAS COUNTY. with hand labor. Putting machines in the forks of Weber creek, east of New¬ Pioneer—A tunnel is to be run in this stopes where hand labor should be em¬ town, and under bond to O. R. Allen, is mine on Curtis creek by W. P. Boyden ployed always lowers the grade. Leaving being prospected by a drilling crew. and associates, to tap the channel which out the Luipaard’s Vlei Estate grade of L.VSSEN COUNTY. traverses that section. 15.94s. per ton (which is not yet a normal Lassen—The Golden Eagle mine of this White Lily—Dunn Brothers have com¬ return), the lowest value per ton crushed company, at Hayden hill, has resumed menced preparations to rebuild the mill is that of the Salisbury mine, with 22.18s. operations and new machinery has been recently destroyed by fire at this mine. per ton, while the highest yield per ton is put in. SAN BERNARDINO COUNTY. ‘ that of the Robinson. 56.44s. per ton. MONO COUNTY. Most companies show increased profits Piper—At this mine, Grapeville dis¬ Masonic District—The Libertv. Pitts¬ for the month. The Lancaster mine, trict, two miles north of Barstow, 140 burg, True Friend and Jump-Off-Joe are which for some months showed a serious tons of ore have been shipped, averaging the principal properties in this camp, but loss, is now earning a profit of about £2500 $13 per ton. A stamp mill is shortly to are not operated on a large scale. There per month. Several companies are still be built. is no mill, and facilities for transporting near the zero mark, namely the New Uni¬ Bagdad Chase—It is reported that this ores give the leasers only a paying profit. fied, the Windsor and the Simmer East. company at Barstow has struck another The camp is midway between Bodie and The output of the West .African mines rich body of ore. The machinery and Aurora. in May is reported at 16,802 oz. gold, an boilers are being overhauled. increase of 814 oz. over May, 1905. For NEV.VD.\ COUNTY. Standard—At this property, Cima. a the five months ending May 31, the total Ben Franklin—This mine, owned by the body of copper ore has been found 500 ft. was 63,578 oz. in 1905* and 88,055 oz. in White Brothers, and under bond to G. W. southwest of the main shaft, at 250 ft. 1006; an increase of 24.477 oz. this year. Hewitt, has had a steam pump put in and depth. ; - \ • i i .' i82 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

SHASTA CX)UNTY. tract for the installation of machinery der new management. James F. Cal- Gold King Group—A strike of high- and equipment for extensive additions to breath has made a consolidation of the grade ore has been made in this group in the plant which is being supplied by the Puzzle and the Gold Dust mines, and is Muletown creek, on the 500 level. The Allis-Chalmers Company, of Milwaukee. arranging to work the two properties con¬ ledge is 8 ft. wide. This mine is nine The new outfit consists of a complete hy¬ jointly. The first thing to be done is to miles from Shasta and about seven miles draulic electric, transmission, and mining install electric power and unwater the from Redding. equipment which will include a 20-stamp Puzzle workings. Mountain Monarch—This company is • mill, induction motors, a 450-kw. gener¬ Truax-Tecumseh—This group of claims pushing along development work on the ator direct connected to water wheels on Mineral hill, above French gulch, has Mountain Monarch mine at Maple moun¬ and a transmission line 3^ miles in been leased to local operators. The old tain, five miles west of Shasta. There is length. The hydro-electric machinery workings will be cleaned out and the large now a crew of 10 men employed under which has been specified, is made up of a zinc ledges known to exist will be prop¬ the management of E. P. Sherk, and good 225-kw. revolving-field water-wheel type erly opened up. showing is being made beneath the sur¬ generator, built for an overhung wheel. face. The main working tunnel is now in Directly mounted on the generator shaft CONNECTICUT. 380 ft. and will be driven 120 ft farther. will be an impulse water-wheel with metal MIDDLESEX COUNTY. casing, having a maximum capacity to Mammoth—This company contemplates Consolidated Feldspar Company—The drive the generator at 25 per cent, over¬ the erection of two additional blast fur¬ company, lately organized at New Haven, load, operating under a net effective head naces, which will raise the smelting capac¬ has leased the Johnson property at White of 500 ft. A No. 3 Gates rock and ore Rock, near Middle Haddam, and is mak¬ ity of the plant to 1200 tons of ore per breaker will be installed and set to crush day. ing arrangements to mine feldspar and to J4 in. This machine will have the prepare it for market. Balaklala—This company is now grad¬ standard belt drive. Two lo-stamp batter¬ ing, preparatory to beginning the con¬ ies, 1050 lb., with mortars weighing 6000 lb. ILLINOIS. struction of its smelting plant. each, are included in the new equipment Mountain Copper—Most of the ore pro¬ together with a cross-head crawl of 3 tons WILLIAMSON COUNTY. duced by this company is now being capacity and provided with 40 ft. of double Scranton 6r Big Muddy Coal Company smelted at its plant near Martinez. track. Four concentrating tables, driven —This company has bought a large tract by a 5-h.p. motor, complete the list of of land between Marion and Pittsburg, SIERRA COUNTY. equipment. The hydro-electric unit for which is said to carry an extension of the Young America—An important mining this installation will be placed on an up¬ Big Muddy vein. The property is now be¬ deal was • completed at Forest City when rising from bed-rock at the bottom of the ing prospected by drilling, and the results the Young America gravel mine was stream which will furnish the power. have warranted the beginning of work on bought, through the advice of Capt. J. W. a shaft. The company has organized, Morrell, by D. P. Monjar and family, who COLORADO. with the following directors: James M. recently arrived in Sierra county from Thomas, W. C. Cowles, Oswald Jones, SUMMIT COUNTY. Louisville. The new owners have already Scranton, Penn.; M. A. Williams, D. A. Wellington—This mine is still being commenced the work of extending tunnel Williams, Taylor, Penn.; Byron Gray, No. 2, which was run through‘hard rock worked on the old lines, but it is expected Corry, Penn.; Cyrus Gray, Livingston that the new program of extensive de¬ by the former owners for a distance of Manor, New York. 850 ft They expect within another 400 velopment and installation of machinery, will be started in short order. ft to reach the channel. LOUISIANA. Old Union—This company has now re¬ SISKIYOU COUNTY. CALSASIEU PARISH. sumed milling operations after its tem¬ Copper—There seems to be considerable porary close down for installing new Jennings—The Crowley Oil and Min¬ interest taken in the copper discoveries at screens. The company shipped over 10 eral Company has declared its eleventh Ash creek on the Klamath river. A man carloads of high-grade concentrates in one dividend of 10 per cent, on a capitalization named Tyler has been opening up claims week. of $200,000 in less than two years. The in that section for nearly two years past. company wells are producing about 3500 Atlantic—This company, owning prop¬ Several other parties have also taken up bbl. daily. erty on North Star mountain, has just claims along the Klamath river. Similar Seven wells were completed here in the completed its series of tests on the saving discoveries were made lately farther down last half of June, of which five were pro¬ of the values on its ores. The company the river in the Collins creek and Horse ducers, but the gross output on June 30 leased the old stamp mill in Montgomery creek sections, near Oak Bar. shows a decline of 4200 bbl. compared camp at the foot of Hoosier pass. This with the previous month. TRINITY COUNTY. mill was put into order and several runs Bonanza King—At this mine, five miles were made under the supervision of MISSOURI. from Trinity Center, work in construction Frank Lawrance, who has had experience of a 20-stamp mill was commenced. An in Australia and Europe. The trial runs JASPER COUNTY. aerial tramway half a mile long will be were so satisfactory that the company has Amazon Land—Elmer Gates, Jack Nail built and two compressors installed. Over decided to build a new mill of its own and James Wyley have taken a lease on 200 men are employed. and put in an aerial tramway plant to con¬ 20 acres of mineral land from the Amazon New This company has been or¬ vey the ore from the main workings of Zinc Company for 10 years with royalty ganized in Redding for the purpose of de¬ the mine into the mill. This company at 10 per cent. veloping a group of very promising min¬ has a group of 37 claims and the grade of Cox Land—The Sophia Mining Com¬ ing claims a few miles west of Bully- the ore is good. The ore is of a fine talcy pany, composed of Joplin parties, has in¬ choop. The company is composed of Gus. nature and in the shipping of it to smel¬ stalled a new pump this week and will Hurst, president and treasurer; E. H. ters, from 20 to 30 per cent, of moisture beg^in taking out ore from a couple of Mclntire, superintendent; W. J. Gillespie, has to be shipped, and freight and smelt¬ drifts at the 6o-ft. level. W, W. Wheeler, W. McNab, and George ing charges paid on it. By local milling White Duck—The owners of this mine, Emdres, directors. and perhaps cyanidation O’f the tailings, about a mile south of Carterville, have Bullychoop—Greenleaf & Riveroll, of this excessive charge will be eliminated. been working at the 146-ft. level on a run Los Angeles, Cal., have taken the con¬ Puzzle—This mine is to be operated, un¬ of zinc ore, but decided to put a drift July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 183 out at 120 ft. on what they thought was a tons. Shipments from Tonopah in de¬ stockholders was held and the board of good run of lead. Instead of encounter¬ tail were: Tonopah Company, 820; Tono¬ directors instructed to accept the proposi¬ ing lead ore alone they struck the same pah Extension, 515; Belmont, 320; Mid¬ tion made by the Columbus Consolidated. run of zinc about 40 ft. from the shaft. way, 100; MacNamara, 93; Montana-To- This latter company proposes to take over Crown Prince—This company, recently nopah, 93; total, 1941 tons. all the holdings of the Hidden Fortune, to organized in Joplin to mine on the John turn over to the Hidden Fortune enough NEW MEXICO. Jackson land at Chitwood, is now^ in¬ bonds to liquidate its indebtedness, in- stalling a boiler, pump and other ma¬ LINCOLN COUNTY. ,eluding the judgment of $230,000, and also chinery preparatory to sinking a shaft Michigan & New Mexico—This com¬ to give to the Hidden Fortune 2,000,000 which is already down 75 ft., but which pany has been organized, with $1,000,000 shares in the new company to be organ¬ will be put down to 150 ft. This lease capital stock, to prospect for petroleum ized. The Columbus will issue $400,000 is just north of the John Jackson, one of and natural gas. The incorporators are: in bonds, and after turning over a share the best properties in Chitwood district. William A. Mclvers, Nogal, N. M.; Wil¬ of these bonds to the Hidden Fortune will liam C. McDonald, Carrizozo, N. M.; Irv¬ use the remainder for the purpose of Providence—The vein in this mine, ing Newton, Lee L. Newton, Chicago; building a mill with a large capacity. north of Webb City, has been pitching Henry L. Milden, Charles W. Jarvis, downward for some time and at present Iron Hill—A meeting of the stockhold¬ Ishpeming, Mich.; Joseph Mitchell, Bea¬ the work is a long way from the shaft. ers was held and the following officers con, Michigan. The company has decided to sink a new elected: Otto Grantz, president; H. T. shaft to intercept the head of the drift. Cooper^ vice-president; John Baggaley, OREGON. secretary and treasurer. LeRoy—This company, composed of BAKER COUNTY. Golden Placer—The building for the cy¬ New York and Webb City parties, oper¬ Gold Coin—The mill at this mine at ating on the Rex land east of Joplin, is anide works, to be 100x75 ft., and 40 ft. Rye Valley was destroyed by fire July high, is almost completed. Adjoining this just finishing up a new 200-ton concentrat¬ 12, being almost a total loss. It had only ing plant. building will be erected a structure to edn- recently been completed, and had just tain the power plant and the crushing and finished its first test run. The com¬ MONTANA. amalgamation departments. The cyanide pany will rebuild as soon as possible. MISSOULA COUNTY. plant will have a capacity of about' 200 Mattoon—This mine at Pocahontas, six Amador Mining and Development Com¬ tons a day. > ^ miles west of Baker city, is working pany—Work is in progress on the build¬ Success—The double-compartment shaft steadily, in charge of A. W. Butler. The ing for this company’s smelting plant. The on this property is going down well and new stamp mill is nearly completed. company has completed a railroad from drifting will commence at the 140-ft. level. Amador 10 miles up Oregon gulch to the COLUMBIA COUNTY. All three veins can be caught within 300 mine. D. E. McKinnon is manager. Iron ore has been found on the Giltner ft. of the shaft. property, near the Columbia river. The POWELL COUNTY. PENNINGTON COUNTY. outcrop indicates a large deposit. Analy¬ Coloma—Work in this mine at Coloma Silver City—The old Steve Breyer prop¬ ses of samples show about 60 per cent, was recently resumed, a force of 30 men erty near here has been bought by L. A. metallic iron, with low phosphorus and having been put at work. The old stamp- Richards, who will overhaul the stamp sulphur, but about 1.5 to 2 per cent, titanic mill has been put in order, and was start¬ mill and put it in operation shortly. The acid. ed up July 16, with ore enough to keep it concentrates will be shipped to the smelter at Rapid City. running. George T. Gambrill, Jr., is su¬ SOUTH DAKOTA. perintendent, with C. E. Essler in charge Clara Bell—The new working shaft has The Mine Inspector’s report for the of the mill. reached a depth of 130 ft. It is well tim¬ year ending Nov. i, 1905, records eight bered, and two compartment. Two NEVADA. fatal accidents in the Black hills, none at¬ shifts of men are working at the lo-stamp ESMERALDA COUNTY. tributable to the carelessness or neglect of mill, and three eight-hour shifts are em¬ Goldfield-Daisy—This company has let the employer. They were caused, with ployed in the mine. one exception, by falling rock and prema¬ a contract for a 50-h.p. electric hoist and Standard Smelter—One stack of this ture explosions. One man met his death equipment. It is sinking a three-compart¬ smelter which has been idle for the past by falling from a cage. The ore tonnage ment shaft, and expects to put it down to • two years, was blown in a few days ago. for the State was 2,080,271, the number of looo-ft. depth. Timbers for the head- The plant now has a daily tonnage of men employed by producing companies frame have arrived at Goldfield. from 85 to 90 tons. It is expected soon alone was 3,547, and the gold bullion pro¬ LYON COUNTY. to blow in the other stack and to increase duced was $7,191,554. Of this, the Home- Cumberland-Ely—It is rumored that the capacity to 150 tons. Limestone for stake produce'd $5,080,000 in all. this company will shortly be consolidated flux is procured a short distance from with the Nevada Consolidated. The Gug- CUSTER COUNTY. town. It is thought that the opening up genheims control both companies, their Saginaw—The new pump recently in¬ of this plant will encourage the develop¬ largest ownership being in the Cumber- stalled is handling all the water in the ment of the smelting propositions *in the land-Ely, in which they possess 52 per shaft. The workings have just cut Calaboga district. cent, of the 740,000 shares of outstanding through 25 ft. of ore and the work of stock. It is said that large orebodies of drifting has begun. Two gangs of men ' UTAH. the same character as those of the Nevada are employed, one in the crosscuts and JUAB COUNTY. Consolidated have been developed in the one in the shaft. Carisa—This company is now market¬ Cumberland-Ely, and the latter company Iron Pyrites—A representative of the ing about 50 tons of ore per day. has also an extremely valuable asset in its General Chemical Company is here inves¬ Colorado Mining—Jesse Knight, of ownership of 1400 miner’s inches of water, tigating the merits of a large body of py- Provo, who controls this company, has out of a total of 2400 inches available in ritic ore on Spring creek. If it comes up given orders to resume development. The the entire district. to the standard it will be shipped to Chi¬ property adjoins the Beck Tunnel, now a NYE COUNTY. cago for use in the manufacture of sul¬ regular dividend payer of the Tintic dis¬ Ore shipments over the Tonopah Rail¬ phuric acid. trict. road for the week ending July 14, were: LAWRENCE COUNTY. SALT LAKE COUNTY. Goldfield, 900; Tonopah, 1941; total, 2841 Hidden Fortune—A meeting of the City Rocks—This Alta company has be- 184 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

gun ore shipments to the Salt Lake smelt¬ shipping grade, and an open cut has since total output for the last month ran above ers. A gasolene hoist is being installed, been started for a new tunnel. $15,000, at an expense of about $4000. The and the management is getting ready for Winnipeg—Copper ore is reported to amount of ore in sight at this mine has development and production. have been encountered in the Hawkeye recently been increased by a new range Utah Copper—The company is supply¬ tunnel. developed. ing the Utah Consolidated smelter with a Anonymous—The upper tunnel is re¬ Foreign Mining News. carload of copper-bearing silicate daily, ported by the manager to have cut across which is used for converter linings. 60 ft. of the vein, partly in oxidized and CANADA. Albion—A crosscut run from the 700 partly in sulphide ore of shipping value. A change has been made in the admin¬ station of the main tunnel level has en¬ The lower tunnel is in 290 ft. in all. istration of the Mines and Geological countered a large body of milling ore. It is Red Metal Smelting Company—This Survey branches at Ottawa, which have the intention of the company to provide corporation has been formed to build a been transferred from the Department of -mill facilities, but possibly not until next smelter at West Fork, 15 miles south of the Interior and placed under the control year. William Hatfield, of Provo, is man¬ Republic, in the Sans Foil valley. It is of Hon. Mr. Templeman, Minister of In¬ ager. said to have New York, Detroit and Win¬ ternal Revenue. It is understood that W'.\SH1NGT0N COUNTY. nipeg capital. this is merely a preliminary step toward

Utah & Eastern Smelter—This plant is STEVENS COUNTY. the carrying out of the arrangement in commission again. It has been closed Transportation up the Pend d’Orielle has under which Mr. Templeman accepted since the severe washouts of last May. been improved, and a boat is being built office, the creation of a department of to go into commission about the last of mines, of which he will be the head. To VIRGINIA. June, to take the place of a raft now used effect this, legislation will be required, and SHENANDOAH COUNTY. for lo-ton lots of freight. Boats are now a bill constituting the department will be Olney McCormick, of Philadelphia, has running from Newport to Box canon, and introduced next session, Mr. Temple¬ leased a tract of land from the Bear Pond the Government has recently completed a man in the meantime administering the Lumber Company, and is beginning work ;oad around the canon, following the Mines and Geological Survey branches so on the development of a body of manga¬ river and reaching the mines. as to become familiar with the existing system. nese ore. Silver Lead Mining and Smelting Com¬ pany—This company is woricing in the BRITISH COLUMBIA. WASHINGTON. Metalline district. A wagon road has Tyee Copper Company—This company State Smelting and Mining Company— been completed, reports that its smelter at Duncan’s sta¬ This company is operating deposits of an¬ tion, Vancouver island, ran 15 days dur¬ timony ore, which are believed to be ex¬ WEST VIRGINIA. ing July, treating 2123 tons of Tyee ore. tensive, and pf good grade, assays show¬ MARION COUNTY. The return, after deducting freight and ing from 30 to 35 per cent, antimony. Fairmont Coal Company—This com¬ refining charges, was $36,630; an average Several successful tests with a furnace for pany has leased a tract of coal land near of $17.25 per ton. smelting ore have been made. Lumberport, and is preparing to open a ONTARIO. FERRY COUNTY. mine there. The provincial government of Ontario Colorado—A tunnel has been driven 60 MCDOWELL COUNTY. was interviewed recently by a deputa¬ ft. on ore of 2 to 5 ft. in width that was .\s a result of an explosion in the Dixon tion of mining men, elected as delegates first encountered in an open cut. A shaft mine at Huger, in the east end of the Tug by public meetings held at Gibalt and was sunk on it 25 ft. deep, from which a River field, on July 19, five miners were neighboring towns, to urge amendments prospecting drift is being run. killed outright and two others will prob¬ in the mining regulations. The deputa¬ Ben Hur—The mine has been closed ably die. The men were being lowered tion included R. H. C. Brown, chairman; down, but the miners have not been paid in the shaft bucket, and instead of having John Black, S. D. Maddin, P. J. Finlan, R. off. The company is talking of re-organ¬ all safety lamps, as was customary, car¬ F. Seymour, Francis Eccles, Cyril Young, izing. ried a gasolene lamp, which is supposed and J. J. Walsh, all of Cobalt; Rinaldo Mountain Boy—This company has been to have ignited the gas. The five men McConnell and T. J. Crowley, Hailey- incorporated by L. H. Mason, P. H. who were killed outright were blown out bury; P. C. Marsh, Latchford; T. H. Brookes, New Liskeard; John McKay, Walsh and F. M. Gates, to operate the of the cage and, falling to the bottom of Mountain Boy mine at' Park city, on the the shaft, were crushed to a pulp. Sauk Ste Marie. They were received by south half of the Colville Indian reserva¬ Premier Whitney, Hon. Frank Cochrane WISCONSIN. tion. and other members of the cabinet. The GRANT COUNTY. deputation submitted resolutions adopted Mineral Hill—A complete equipment by the delegates asking for numerous Gray Farm — Mr. Herzberg, a Joplin for a compressor plant is on the ground changes in the system. The points more mining man who is associated with Frank for the Minnehaha tunnel. Brick for walls especially emphasized were, that only one Nicholson in the Gray Farm, states that and foundations for a boiler and compres¬ application for a location should be re¬ a complete equipment, consisting of pumps sor is being hauled from Danville, one ceived and that the prospector staking a and hoist, will be installed in the near and a half miles distant. The company claim should be entitled to exclusive pos¬ future. .An incline shaft is down to the owns a group of several claims near the session so long as he was engaged in de¬ ore. international boundary line, but only two velopment work; and that more inspectors mineral veins have as yet been discov¬ Gritty Six — The Gritty Six recently should be appointed to prevent delay in ered, both of them small. A few carloads shipped several carloads of high-grade inspection. The discussion which fol¬ of ore shipped to the Granby smelter, at zinc ore, which, after being treated mag¬ lowed developed considerable differences Grand Forks, B. C., assayed well in gold netically, assayed 60 per cent, zinc and of opinion among the delegates as to some and copper. contained less than 2 per cent. iron. of the changes desired. Hon. Frank Oversight—The vein has been encoun¬ Kennedy—Owing to the fact that the Cochrane, Minister of Mines, admitted tered in a new place, between the west- Kennedy is a close corporation it is not that the system of receiving second ap¬ side tunnel and the .Great Northern shaft, often the outside mining world hears plications for claims previously staked where it was first struck on the footwall. much of its financial affairs. One of the was a great hardship, and stated that it It was stripped 23 ft. across ore of a owners is authority for the fact that the would be discontinued. He also promised July 28. igo6. THE ENGINEERING AND MINING JOURNAL. that more inspectors would be appointed so International—This company, the head vestigated by a foreign syndicate. These as to prevent the delay in inspection com¬ office of which is in Detroit, has begun the mines have for many years been consid¬ plained of. As to some of the other construction of camps on its property ered of interert, but it is necessary for a changes asked for, they embraced matters known as SG 529 on Lower Manitou lake. certain amount of capital to be expended that could only be dealt with by the leg¬ Extensive development work has been on them in investigation work. From islature. done and a dam completed for the devel¬ time "to time considerable parcels of ore ONTARIO—COBALT DISTRICT. opment of electrical power. Machinery have been wrought, and the galena pro¬ .^n Ottawa syndicate, including among for the equipment of the mine has been duced has the advantage of being rich in others, A. W. Fraser, G. P. Murphy, J. P. ordered. silver. Dickson, and Newton Kerr, has secured Standard Consolidated—Six choice loca¬ from the Timiskaming • & Northern tions have been secured. George W. Coal Trade Review. Ontario Railway Commission a lease for Cooper, of Detroit, has gone to Manitou to New York, July 25. 999 years of the mining privileges on the arrange for the commencement of opera¬ Coal trade in the East is seasonably right of way of that railway between the tions on locations S38 and G9 in the im¬ quiet. Shipments to coastwise ports go on 101 St and 105th mile. This covers mediate vicinity of the Laurentian mine. steadily, but there is little new business, the portion of the road running Golden Rose—President J. B. Moran has and nothing to affect conditions. Consum¬ through the Cobalt area. The syndicate been examining the property, comprising ers having contracts are taking the usual pays a cash bonus of $50,000 and a over 400 acres, near the Twentieth Cen¬ stocks; others are not in a hurry about royalty based on the value of the output tury mine. Three or four promising supplies. at the mouth of the mine at the rate of veins have been found. The headquarters In the West matters are gradually set¬ 10 per cent, of the gross value on ore of the company are at Escanaba, Michi¬ tling down into the usual routine. Here assaying under $400 per ton; 25 per cent, gan. and there, as in Indiana, there is some when the value is between $400 and friction about the new contracts, perhaps $1000; and 50 per cent, when the value MEXICO. hastily drawn. For the most part, how¬ exceeds $1000. The lessees are known as PACHUCA. ever, evidences of the recent strike are the Right-of-Way Mining Company, but Real del Monte y Pachuca—This com¬ disappearing. In some quarters there are are not yet incorporated. The com¬ pany has closed a contract with the Well¬ complaints about scarcity of labor at the mission has also leased the northwest man-Seaver-Morgan Company, Cleveland, mines. 40 acres of Cobalt town-site for a O., for what is probably the largest order COAL TRAFFIC NOTES. $22,000 bonus and similar terms as to for electric hoists ever placed in this The coal and coke traffic originating on royalties. country. This order consists of six elec¬ Numerous smelter propositions are at tric hoists with double reels 12 ft. 8 in. ail lines of the Pennsylvania Railroad east of Pittsburg and Erie for the year to present under consideration. 1 he North maximum diameter, 18,800 lb. load, to July 14 was as follows, in short tons: Ontario Reduction & Refining Company, use 4J4x}4 in. flat wire rope, and to hoist Ltd., Col. John J. Davidson, president, this load at a speed of 1000 ft. per minute; IMS. IM6. Ohanges. will establish works at Sturgeon falls for Anttiraolte. 2,603,831 2,336,683 O. 287,348 these hoists having air-operated post Bltomlnoua. 16,018,184 16,666,679 1. 1,648,336 the treatment of Cobalt and Sudbury ores brakes, and auxiliary hand brakes. Also OOke. 5,866,734 6 747,647 I. 8M,833 by the hydro-electric process. The plant six electric hoists with double reels 10 ft. Tout.23,377,739 25,049,649 1.2.171,910 will be erected by W. B. Holman, of Grand 6 in. maximum diameter, each hoist to Shipments of Broad Top coal over Rapids, Minn., and O. L. Young, manager handle a load of 11,300 lb. at 500 ft. per the Huntingdon & Broad Top Railroad of the Idaho reduction works at Clarks- minute, to use flat rope 4J^xJ4 in., these for the week ending July 2i were 14107 ton. Wash., where the Holman-Young pro¬ hoists having hand-operated post-brakes. tons; for the year to July 21 they were cess, of which they are the patentees, is in Also, one electric hoist with 36X 421,437 tons. successful operation. The company is 48-in double drums, to handle a load of capitalized at $500,000 and is putting its 8,600 lb., at 500 ft. per minute. All these H#w York July 25. shares on the market. The Montreal hoists are to be equipped with three-phase, .ANTHR.ACITE. Smelting and Reduction Company is putting 440-volt, 50-cycle electric motors, with There has been no change in the an¬ up a smelter four miles from North Bay master controller and water-cooled rheo¬ thracite market during the past week. and has made application to the Railway stats. 'I'rade remains stagnant and conditions at Commission for a railway siding to that the mines are unchanged. Production point. Other companies have applied to AFRICA. goes on as usual, but there is still a scarci¬ the government for sites. TRANSVAAL. ty of operatives and the usual storing of It is officially announced that the pro¬ The Chamber of Mines reports that coal is going on but to a limited extent. ceedings taken by the provincial govern¬ during June 6047 Kafir laborers were A change in conditions is not looked for ment to cancel the title of the Nipissing employed, while 7172 left on account of by the producers until September, when Mining Company to its Cobalt proper¬ expiration of time and other causes; a net the usual stocking up for winter begins. ties have been dropped, the company hav¬ loss of 1125. The total number of Kaf¬ Prices on prepared sizes remain the same, ing given satisfactory evidence that it was irs at work in the mines was 77,357 at according to the July schedule, as fol¬ bona Me purchaser for value, without no¬ the end of June. The Chinese labor re¬ lows : $4.55 for broken and $4.80 for egg, tice of any defect in the title, having paid port shows 2088 arrived in June, while stove and chestnut sizes. For steam sizes: $250,000 to the vendors. This decision, 621 were sent back to China and 89 died. $3 for pea; $2.25(^2.50 for buckwheat: which will furnish a precedent for action This was a net gain of 1378. and the total [email protected] for rice and [email protected] for in similar cases, has tended to restore pub¬ number at work was 52,329 at the end barley; f.o.b. New York harbor shipping lic confidence in Cobalt which was some¬ of June. points. what shaken by this and other proceed¬ BITUMINOUS. ings. EUROPE. The Atlantic seaboard soft coal trade ONTARIO—MANITOU DISTRICT. SP.\IN. remains quiet; first one producer and Active work is being carried on in the Messrs. Barrington & Holt write from then another gets a small supply of or¬ Lake Manitou gold area in northern On¬ Cartagena, Spain, that a group of lead ders, but they are of a sporadic character tario and American capital is being in¬ mines situated in the vicinity of Cabo and nothing general; producers are not vested in new locations. Palos, are, it is reported, shortly to be in¬ forcing the market except w’hen they are i86 THE ENGINEERING AND MINING JOURNAL. July 28, 1906. obliged to. Production is generally re¬ Company’s mines. The Tennessee Coal, selling at $2.60 as a minimum, with higher duced from 25 to 75 per cent., to prevent Iron and Railroad Company has installed prices'paid. accumulations of coal at tidewater. Pro¬ electrical haulage systems in the Blue Indianapolis. July 24. ducers, rather than take less than what Creek mines, in the southern portion of they are now asking, would prefer to cur¬ Jefferson county. Another suspension of coal mining is tail shipments from mines and save their Coke is not as plentiful as it might be. threatened in the Indiana fields owing to coal for better figures. The Birmingham Iron Company (Tutwei- the misunderstanding over the clause in The men in the central Pennsylvania ler), has given the contract for the erec¬ the new agreement stating that the miners district are back at work, but the produc¬ tion of 100 additional coke ovens at Short must remove a “reasonable amount’’ of tion is comparatively small and it will Creek, in Jefferson county. slate. Just what constitutes a reasonable take some weeks for the mines in that amount has not been determined, and for district to run smoothly again; with the Chicago. July 23. this reason about 1200 in Greene county present conditions prevailing it is not Dullness prevails in practically every have quit work, pending a settlement of thought that the operators care to press branch of the wholesale coal trade. The the question. The miners are asking for mine operations to their full capacity. demand for both bituminous and anthra¬ a new convention to adjust the difficul¬ The present dullness is due to the fact cite is light and the supply of Western ties, but the operators say that under the that previous to the late strike, consumers bituminous, the local market’s chief com¬ contract they are not bound to consider stocked largely and are now using their modity, is overwhelming, with the mines grievances while the men are out. On accumulations. In some instances con¬ of Indiana and Illinois pouring in ship¬ the other hand, the miners say that the sumers stocked as far ahead as two years, ments daily that must be sold at no profit question in dispute is not subject to the and naturally consumption of new coal to escape demurrage. Eastern coals are contract provision for arbitration because must be limited. However, it is expected in better condition; shipments are fairly the contract as to removal of slate re¬ that trade will pick up in September ow¬ well restricted, though here and there a mains as last year, while the operators ing to usual Winter business and to orders lot is sacrificed. Anthracite is in very are demanding other conditions. The from districts which must lay in a supply light demand even for summer trade. matter will be submitted to the State ex¬ to last from November* to April. Trade Fine coals, as usual in summer, are ecutive boards and a compromise is ex¬ in the far East is dull. Contracts seem most in demand. Illinois and Indiana pected. The coal-mining industry of In¬ to be the only business, and consumers are coal brings $1.40® 1.60 for screenings, diana is not as brisk as it was at this not taking nearly their regular monthly [email protected] for run-of-mine and [email protected] time last year. The operators say they proportion. Trade along the Sound is so for lump. The demand for Eastern coals do not anticipate a marked improvement quiet that pressure is being placed upon is light; and smokeless. Hocking and before cold weather. Large buyers are consumers to make some showing on their other kinds hold well to circular prices on slow to make contracts; they do not fear contracts. the small amount sold. It is probable that car famines or other delays, and are more New York harbor trade is quiet and but the closing week of July will see a tem¬ insistent than ever on close figuring. The a small tonnage is moving. There is, porary increase of orders for anthracite, largest contracts usually signed up by this however, no accumulation at other tide¬ due to the decrease of loc. in the discount time are not yet closed. The Indiana water ports. Prices continue $2.6o@ from the circular prices with the first of operators are sending coal to the cities 2.75 f.o.b.. New York harbor shipping the next month. only when required to supply definite or¬ points, for good grades of steam coal with ders, and are refusing to send it on con¬ West Virginia coal running down to Cleveland. July 24. signment to jobbers or even to their own $2.40. All-rail trade is a little, but not The coal situation here is being compli¬ agents. They have learned that coal sent much, better than tidewater business. cated by interruptions of mining opera¬ to market under these circumstances is Transportation from mines to tide is good, tions, due to labor difficulties. At present sacrificed on account of demurrage coal running through on about schedule the market is glutted with coal, but the charges, and they prefer to keep it in the time. Car supply is up to all demands. situation will be changed in another week, ground. In the coastwise vessel market vessels because some of the mines, finding the The • Indiana railroad commissioners are taking outside freights to a consider¬ market not ready to absorb their produc¬ say that reports come to them from the able extent, thus making boats more tion, have shut down. Middle district coal-fields to the effect that never before scarce than they otherwise would be. mine operators are still haggling with the has there been such a good distribution We report current rates of freight from men. The Hocking district is working, of cars as at present. Freight rates have Philadelphia as follows: Bath, Salem and but labor supply is short. The Pennsyl¬ alsp been equalized and discrimination no Portland, 6o@6sc.; to the Sound, 50@ vania district is running short-handed longer complained of. For this reason SSc.; Newburyport, 80c.; Portsmouth, 65 also. At present there is plenty of coal Indiana coal has successfully competed @70c.; Bath, 85c.; Saco and Gardiner, both for the local and the Lake trade, but with outside coal in some of the large in¬ 90c. and towage. this may be changed shortly. stitution contracts of the State, Just now the market is weak. Oper¬ Birmingham. July 23. ators are holding for $i at the mines for Pittsburg. July 24. All of the commercial coal operators in Ohio coal, but are selling for 90c. when Coal—Production of coal in the Pitts¬ Alabama, who had contracts during the the opportunity presents itself. Slack is burg district is greater than at any time past 12 months with the union coal min¬ strong, and in good demand. Prices hold this year, and the car supply is excellent. ers, have renewed the contracts, and work at 75@8oc. at the mines, with active buy¬ The demand continues, but prices are a has resumed at all the mines. There is no ing. The Lake movement, while it is act¬ shade lower than a wsek ago, and quota¬ stoppage at the mines in this State, and the ive for this year, is still far below nor¬ tions are on a basis of [email protected] for output is heavier than it has been in some mal, and there is beginning to be a serious mine-run coal at the mine. The Pittsburg time. Two small mining companies were question of whether some of the Lake Coal Company has made some extensive formed during the past week. The Choctaw shippers will be able to meet their con¬ improvements, and is constantly increas¬ Coal Mining Company has been organized tracts. ing its output. The river mines have been with J. R. Pill as vice-president and general The coke market is strong. Buyers are running steadily since April i, and nearly manager, the object of the company be¬ placing contracts for delivery through to every empty coal boat and barge avail¬ ing to operate the mines of the Gallowaj July I next year at present prices. The able is loaded. A rise in the rivers is Coal Company in Walker county. Mr best grades of 72-hour foundry are selling expected, when there will be an unusually Pill is now manager of the Galloway at $3 as a minimum, and furnace coke is heavy shipment of coal to southern ports.

i r

July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 187

Connellsville Coke—^There was an in¬ the point where imports are needed. charcoal iron is firm at $19. In iron and crease in both production and shipment, There are reports, however, that a large steel products the local market shows and the demand is still heavy. Prices are order for steel billets has been placed in firmness though no great activity. firm, furnace coke being quoted at $2.45© Germany by parties who could not secure Coke is in good demand with an in¬ 2.65, and foundry at $2.85@3. Accord¬ the deliveries they wanted at home. creasing consumption of the best grades. ing to the Courier the production for the Lake Superior iron-ore shipments are Connellsville, 72-hour, sells for $5.50@ week amounted to 272,608 tons. The not quite coming up to earlier anticipa¬ 5.65, and other coke about 50c. less. shipments aggregated 14.156 cars, distrib¬ tions. Unless there is a great rush in uted as follows; To Pittsburg, 4763 cars; August, less ore will be sent down for the Cleveland. July 24. to points west, 7814 cars; to points east of season than consumers had counted on. Iron Ore—Bessemer Old Range ore is Connellsville, 1579 cars. The production Shortage of labor is the great trouble. scarce, bringing a premium, if obtainable, in the Lower Connellsville region was of 50 to 75c. a ton, at $4.75@5- The sup¬ 104,565 tons. Birmingham. July 23. ply is short. The lake movement is now Alabama pig-iron manufacturers have as heavy as mine production will permit, Foreign Coal Trade. advanced prices for their product. No. 2 since there is no question of boat capacity foundry now being quoted at $13.75 per to move all the material that could be pro¬ July 25. ton. Sales are being made at the new duced. Despatch to boats at the lower lake Exports and imports of fuel in Belgium price, though in small lots, to be delivered ports is exceptionally good. The rates of for the five months ending May 31 were, as quickly as the orders can be reached, carriage are firm, based on 750. from Du¬ in metric tons: in most instances within the next three luth to Ohio ports. ,— Exports. —^ ,— Imports. , months. The aggregate business in the Pig Iron—Foundry iron is dull for the 1906 1906. 1905 1906. past month will take up the better part of Coal. 2,097,290 1.879,367 2,192,488 1,634,101 time being. Most orders are to piece out Coke. 396,836 178,904 163,778 162.944 the probable make for nearly four months. Briquets.... 369,865 226,980 62,066 22,106 former contracts. The price holds at The smaller producers in this section are $i6.75@'I7 in the Valleys for No. 2, indi¬ Total. 2,863,981 2,286,251 2,398,321 1,809,161 not able to accept much business right The total exports show a decrease of cating a slight weakness. Bessemer and now, furnaces being out for repairs. The 578,730 tons; while there was also a de¬ basic are strong, the former at $17.25® home consumption is steady. The steel crease of 589,170 tons in imports. 17.50 and the latter at $17 in the Valleys. industries in the Birmingham district are Exports of fuel from Great Britain, Southern furnaces are not selling much losing no time and the output is healthy. with coal sent abroad for the use of iron in this territory. The puddling departments of the rolling steamers in foreign trade, were as follows mills are in operation, and arrangements Finished Material—During the past week for the half year ending June 30, in long being made to start up the finishing de¬ nine new ships were ordered by Cleveland tons: partments a little later on. vessel firms from the various lake ship¬ 1906. 1906. Changes. The work on the new steel plant at yards. Of these four were for the United Coal. 22,893,660 26,648,462 1.3,664,902 States Steel Corporation and the others Coke. 318,861 339.918 I. 21,067 Ensley, the plant being erected for the Briquets. 663,206 699,620 I. 146,314 Tennessee-Republic Company, will be for furnace interests or to companies own¬ Total exports.. 23,766,627 27,687,900 1.3,822,273 rushed. Hodges & Son, contractors, have ing mines. This brought about an order Steamer coal. 8,480,647 8,999,622 I. 618,976 put a large force at work on the excava¬ for 20,000 tons of steel plates from one of Total. 32,246,174 36,687,422 I. 3,341,248 tions for the foundations. Representa¬ the big Pittsburg mills, followed by the The coal exported to the United States, tives of the Jones & Laughlin Company, announcement that that concern would be included above, was as follows: of Pittsburg, which will furnish much of able to make plate deliveries only after 60 1906. 1906. Changes. the structural material for the new plant, or 90 days. Bar iron is growing stronger Atlantic ports... . 19,617 20,663 I. 946 and the mills are disposed to advance the Pacific ports. 23,426 D. 37,226 have been in the district recently. price, which is still 1.50c. Pittsburg. Bil¬ Total. . 80,268 43,988 D. 36,280 W. H. Johnson has been appointed as¬ lets are still scarce, with a good demand The larger exports this year were to sistant traffic manager of the Tennessee- for the forging quality at $34@35 Cleve¬ France, 4,627,929; Italy, 4,196,218; Ger¬ Republic Company and Birmingham land. many, 3,465,438; Sweden, 1.517,024; Spain, Southern Railroad. He was assistant traf¬ fic manager at this point for the Repub¬ 1,390,603; Egypt, 1,264,483; Denmark, New York. July 25. 1.187,513; Argentina, 1,163,739; Russia, lic Company. He will work under H. R. Pig Iron—Business is better and the or¬ 1,071,284 tons. Moore, traffic manager. ders coming in are larger than they have Iron Trade Review. Chicago. July 23. been lately. Prices are firm, some grades The local iron market continues firm. being a little higher. Southern sellers New York, July 25. Many melters are buying iron on short¬ are now holding at $13.75, Birmingham, The iron and steel markets continue ac¬ term deliveries, though the usual contracts for No. 2 foundry. tive and strong, with an unusual quantity for supplies to eight months ahead are in¬ Current quotations for pig iron are, for of new business for the season. Some creasing. In consequence, pig iron for de¬ New York or parallel delivery: oonsumers, who have been holding back, livery within three to six months is al¬ Northern; are coming into the market, apparently No. 1 X foundry. U8.60ra)$19 ready at a premium of 25@75c., with the No. 2 X foundry... 18^18.60 convinced that there is nothing to be prospect that it will command more before No. 2 plain. 17.26^17.76 gained by waiting. The railroads con¬ Forge pig. 16i®16.60 the end of the month. Southern: tinue to buy, and the pressure for struc¬ A scarcity of iron is reported by both No. 1 foundry. 18^18.60 No. 2 foundry. 17.26f®17.76 tural material continues, showing that Northern and Southern agents though No. 3 foundry. 16.60i®16.76 there is no cessation in the coming for¬ Northern is less plentiful than Southern, No. 4 foundry. 16.60^16 No. 1 Boft. 18^318.60 ward of new building projects. apparently. With a rush of orders mark¬ No. 2»oft. 17.26®17.60 The fact seems to be that the year is ing the belief of the melter that the time Gray forge. 16^16.60 now so far advanced that the crop situation to buy has come, it is probable that there Basic pig: Northern. 17.60(317.76 is assured. It is therefore probable that will be a considerable turning to South¬ Virginia. 17.60 the present activity will continue over ern. Alabama. .. 17.76(0)18.26 into another year, and no fall in prices or Northern No. 2 iron brings $i8.5o@i9 City or local deliveries arc not included ■demand can be expected for that time. and Southern No. 2 $i3.50@i4 Birming¬ in prices, which are for large lots, on In most lines we have not yet reached ham ([email protected] Chicago). Northern dock or cars. i88 THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

Bars—Bar iron is in better demand and Plates—The prospects at all of the plate i2f^-in. sizes for the Wichita Natural Gas prices are 1.645c., tidewater. Steel bars mills are most satisfactory. Company of Kansas. Prices are fairly are quoted 1.645c. Store trade is fair, at Structural Material—The representa¬ good and there is no indication of an ad¬ 1.75c. delivered. The Association at its tives of this branch of the steel industry vance. Nearly all of the independent recent meeting decided to keep the price report an extraordinary demand for all sheet and tin-plate interests are operating at 1.50c., Pittsburg. structural material, in which bridge re¬ their plants and all are crowded with or¬ Plates—Tank plates are quoted at 1.745 quirements are naturally taking the lead. ders. The American Sheet and Tin Plate (q'i.825c., tidewater, according to width. Steel Rails—The steel-rail mills of this Company is said to be booked for the Flange and boiler are 1.845, sfid fire-box State have booked some 50,000 tons within capacity of the mills now being operated 2.045c. Jobbers ask higher prices for a week. for at least four months. Some large small lots. Local trade is not pressing. contracts for steel bars are being placed Scrap—The buyers of scrap are appear¬ for deliveries extending over a period of Structural Material—Prices are nomi¬ ing in the market, and have been buying nally unchanged. Beams under 15 in. are steel scrap and foundry scrap, as well as six months, and some contracts are being 1.845c. for large lots; over 15 in., 1.895c.; machinery, in a quite active way. Rail¬ placed for a year. All shading of prices has disappeared. angle and channels, 1.845c., tidewater de¬ road scrap is hard to get, and is sold far livery. A large lot of the business here ahead. Wrought-iron pipe is quoted at Pig Iron — The pig-iron market is is done by jobbers, who are asking 2.50c. $13; machinery scrap $13.50; railroad stronger than it has been at any time since for beams and channels out of stock. Or¬ scrap $18; and No. i steel scrap at $16. the opening of the year. No sales of bes- ders are quiet for the present, but there is semer iron of any consequence have been a good deal of pressure for delivery on Pittobvrg. July 24. made, as it is impossible to get tlte iron, contracts. It is confidently asserted by furnace in¬ and there have l)een no transactions for Old Material—The scrap market is dull terests that the minimum price of besse- the fourth quarter. Buyers are expected and dealers are more moderate in their mer iron for the rest of the year will be to come into the market for late deliver¬ views. Heavy steel melting scrap is $14® $18, Valley furnaces. Production contin¬ ies in a short time, and it is declared that 14.50; No. I railroad wrought, $17® ues to decline as more funiaces are being the lowest price w'ill be $18, Valley fur¬ 17.50. blown out for repairs, and higher prices naces. It is understood that a few small for all grades of pig iron are predicted. lots of bessemer iron were sold at $17.75, Philadelphia. July 25. The foundry market has caused some sur¬ and some sales were made at $18. Foundry iron has advat ced from 25 to 50c. a ton, Pig Iron—Those furnaces in this dis¬ prise. Foundries had been keeping out, and No. 2 is quoted at [email protected], Valley trict, which are in the market for compar¬ buying only for immediate requirements, furnaces. Sales for the week aggregated atively early delivery have advanced and were evidently under the impression 6000 tons of Northern foundry, one lot of prices 25c. per ton. This action has been that stocks were accumulating and that 1000 tons being sold at $17.10 at the fur¬ made positive by the blowing out of some prices would lie lower. In this they were nace. Smaller lots brought $17.25. Basic furnaces, the withdrawal of some other disappointed, as it developed that stocks iron is firm at $I7.25®I7.50, Valley fur¬ furnaces from the market, and the ad¬ were low. Gray-forge prices are firmer naces, and gray forge is quoted at $16.50 vances made on Virginia and Alabama and some satisfactory transactions have (016.60. PittsGurg. iron. Large sales have been made in this been made during the past few days. Basic market within the past few days, including iron also is in demand, and the price is Steel—Bessemer billets ’continue scarce both foundry and forge iron. More prom¬ likely to be still further advanced. All and $27.50, Pittsburg, is the minimum ised activity grows out of the require¬ producers of pig iron agree that the quo¬ price. Open-hearth billets remain at $28 ments very recently presented by car- tations this week will be the minimum @29. sheet-bars and tin-l)ars at $29. Plates builders who have closed contracts with prices for the year, with strong indica¬ remain at i.6oc. and merchant steel bars railroad companies for the construction of tions of an advance. at 1.50c. cars running into several thousand. Quo¬ The steel market continues in excellent Sheets—New business is being booked tations may be given at $i8.50®i9-25 for condition, although there is no extensive and specifications are coming in more No. iX; $i8®i9 for No. 2X; $18 for No. buying in any particular line. Specifica¬ freely. Black sheets are strong at 2.50c. 2 plain; and $16.50 for forge. The cheap¬ tions are coming in more freely in some and galvanized at 3.55c. for No. 28 gage. est forge is held at $16. Basic is $17-75 lines, particularly sheets, tin-plate, struc¬ Ferro-Mangauesc—The market is still and malleable $19. tural material and plates. A great deal irregular and foreign 80 per cent, is quoted Steel Prices are held firmly at of new business in steel rails is being $85(090 for July and .\ugust, and $8o@85 $29 for open-hearth billets, but it is inti¬ lxx)ked. ^ he Carnegie Steel Company for September. mated that business has been done as low last week added 52.000 tons to its con¬ as $28.50 on a large contract. Forging tracts, chiefly for next year’s delivery. London. July 16. Among them was one for 30,000 tons from billets are in better request than usual, Iron and Steel Exports—Exports from the Southern Railway, 10,000 tons for the and they average $32. Buyers are sound¬ Great Britain for the half-year ending Pittsburg & Lake Erie Railroad. 5000 ing this market with a view of placing or¬ June 30 are valued by the Board of Trade tons each for the Lehigh Valley and the ders for late fall delivery. returns as below: Chicago & Eastern Illinois Railroad, and Bars—The bar-iron makers have de¬ 1906. 1906. CbangM 1300 tons for the Evansville & Terre cided to stick to their old prices, and Iron and Steel.. £14,966,606 £18,418,116 1. £3,461,611 Haute Railroad. The Illinois Steel Com¬ Machinery. 11,000,016 19,761,219 I. 1,751,903 they will find no trouble in doing so. New Ships. 9,156,673 6,811.192 I. 3,666,619 pany and the Lackawanna Steel Company Sheets—Our store stocks of sheets are have reserved 160.000 tons for 1907 for Total.£28,122,194 £-36,980,627 I, £»,868,338 l>eing replenished, and there is quite a lot the New York ’Central lines and 40.000 The total income this year was 31.5 per being shipped from mills to outside points. tons for the Great Northern Railroad, the cent. The chief items of the iron and Card rates are easily maintained. details of which are to be arranged later. steel exports were, in long tons;

Pipes and Tubes—lht tube market is Demand for pipe continues very good and 1905. 1906. Changea- exceptionally active; prices are very a number of large contracts have been Pig Iron. 449.760 706,466 1.266,706 Wrought Iron.. C6,436 94,706 I. 9,271 strong, and the mills are reported over¬ Itooked, orders for line pipe during the Balls. 262,4<3 191,9u9 D. 70,494 sold. Platee. 90,067 119,899 I. 29,842 past week aggregating about too miles. Steel shapes, etc. 99,88:t 191,281 I. 21,398 Merchant Steel—^The retail distribution The National Tube Company has received Sheets. 198,947 217,364 I. 18,407 Tin-plates. 186.109 177,288 D. 8,821 has picked up within the past week or two. a contract for about 2000 tons in 4*-^ to All Other kinds. 466,572 478,632 I. 11,960 July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 189

The total increase in quantities was the half-year ending June 30 w'ere as fol¬ The following table shows the specie 368,269 tons, or 21.2 per cent. Exports of lows, in cwt. of 112 pounds: holdings of the leading banks of the pig iron to the United States were 81,445 1906. 1906. Changes. world: tons in 1905, and H4,374 tons in 1906, an Bleaching powder. 426,946 481 660 I. 54,714 Muriate of ammonia.. 42,536 66,987 1. 14,451 Oold. silver. Total. increase of 32,929 tons; of tin-plates, 33,- Soda ash. 722,274 789,438 1 67,164 New York.$193,066,200 786 tons in 1905, and 24,770 tons in 1906, Bicarbonate of soda .. 217,367 178,319 D. 39,048 England.$186,669,160 . 186,669,160 Caustic soda. 707,466 794,968 I. 87,520 France. 684,398,330 $212,470,090 796,868,420 a decrease of 9016 tons. Soda crystals. 98,869 81,904 D. 16,965 Germany. 170,630,000 66,840,000 227,370,000 Soda sulphate. 278,811 428,678 I. 149,867 Spain. 76,866,000 123,070,000 198,936,000 Iron and Steel Imports—Imports into Sulphuric acid. 88 443 61,092 I. 12,649 Netherlands.. 27,602,600 28,771,600 66,374,000 Copper sulphate. 1,011,440 765,300 D. 266,140 Belgium. 16,003,336 8,001,666 24,006,000 Great Britain for the half-year are valued Italy. 147,206,000 19,956,000 167,160,600 by the returns as follows: Imports of chemicals and raw materials Russia. 646,336,000 30,030,000 676,366,000 Austria. 234.396,000 62,810,000 297,206,000 ^ 1906. 1906. Changes. were as follows in long tons-: Sweden. 19,380,000 . 19,880,000 Iron anU steel... £4,006,496 £4,722,453 I. £716,968 Machinery. 2,454,694 2,639,228 I. 184,634 190.'.. 1906. Changes. The returns of the associated banks of Nitratrt of potash.... 4,734 5,222 I. 488 New York are of date July 21, and the Total. £6,461,189 £7,361,681 I. £900,412 Nitrate of soda. 68.940 62,097 I. 3 167 .. 190.85] 241,: 96 1. .50.646 others July 20. The foreign bank state¬ The total increase was 13.9 per cent. Ph08phat*’8. Sulphur. 9 677 lit, 9; I 1,015 ments are from the Commercial and Fi¬ 1 he chief items of the iron and steel im¬ Pyrites ... 369,984 389,410 1. 19,426 nancial Chronicle, of New York. The ports were, in long tons : Valuing sulphur contents of pyrites at New York banks do not separate gold and 1906. 190 >. Changes. the usual figure, the total sulphur imports silver in their reports. Pig Iron. 68,294 40,771 D. 17,623 were 176,169 tons in 1905, and 185,927 tons Wrought Iron. 41 088 61,348 I. 20,260 Steel billets, etc. •2a3,969 .307,163 I. 23,194 in 1906; an increase of 9758 tons, or 5.5 Bars and shapes. 24,038 32 679 I. 8,641 Shipments of silver from London to per cent. Structural steel. 41,072 60 496 I. 19,423 the East are reported by Messrs. Pixley & All other ktuds. 184,403 218,763 I. 34,3S0 Abell as follows for the year to July 12: The total increase in quantities this year Metal Market. was 14 per cent. 1906. 1906. Changes. India.£3,873,941 £9,762,463 I. £ 6,878,622 New York, July 2.5. Iron Ore Imports—Imports into Great China. 687,770 116,600 D. 671,170 Britain tor the half-year were, in long Gold and Silver Exports and Imports. gtralts. 2,800 1,760 D. 1,060 At all United States Ports in June and year. tons: • Total. £ 4,664,511 £ 9 870,813 I. £ 5,306,302 1905. 1906. Changes. Imports for the week were £4000 from Exports 1 Imports 1 Excess. Mauganiferous ores. 138,624 176,984 I. 37,460 Metal. Iron ores. 3,390,889 3,886,879 1.494.990 Mexico, £440,000 in bars and £17,000 in Gold: Mexican dollars from New York; £461,000 Total. 3,529,413 4,061,863 1.632,460 June 1906.. $3,256,392 ! $2,374,261 Exp. $882,331 in all. Exports were £1500 to Egypt, The total increase was 15. i per cent. •• 1906 . 4,030,882 ; 2,149.051 1,881,831 Year 1906.. 31.610,714 ‘ 52,642,959 Imp. 20,932,246 £171.500 to India and £116.600, in Mexi¬ Of the imports this year 104,413 tons of “ 1906.. 39,831,690 16,609,463 Exp. 23,222,137 can dollars, to Hongkong; £289.600 in all. maiiganiferous ore and 3.052.219 tons of Sliver: June 1906.. 4,618 386 3,740,286 •* 773,101 iron ore were from Spain. •• 1906 .. 4,744,625 2,366,078 2,388,647 Year 1906.. 33,437,227 23,657,101 " 9,780,126 Indian exchange remains steady, the •• 1906.. 25 091.266 15,173.423 9,897,843 Council bills offered in London being ta¬ Cartagena, Spain. July 7. ken at i6d. per rupee. .\n increased de¬ Iron and Manganifcrons Ores—Messrs. These statements cover the total movement ot gold and silver to and from the United States. mand for bills is expected, in connection Barrington & Holt report that shipments The figures are furnished by the Bureau of Statis¬ with a new per cent, rupee loan for for the week were one cargo. 2093 tons tics of the Department of Commerce and Labor. 430 lakhs, which is shortly to be offered. dry ore to Great Britain; one cargo, 1900 tons manganiferous ore to Marseilles. Gold and Silve* Movement, New York The movement of gold and silver in Shipments are steady and freights still For week ending July 21 and years from Jan. 1. Great Britain for the half-year ending low. Exchange has increased, hut is still Gold. 1 Sliver. un.^teady. Period. J line 30 is reported as below: Exports. Imports j Exports. 1 Imports. Quotations are 8s. qd. % 9s. for ordin¬ Gold : 1905. 1906. Imports. _ £19,483,437 £23,036.991 ary 30 per cent, ore ; 9s. 3d. tq; Qs. 6d. for Week... $ 134,311 $ 996.947 $ 71,221 Exports. . 11,262,326 17,661,343 1906. 6,900,973 46,109.063 34,942,644 1.222,471 special low phosphorus ore: 12s. id. for 1906... 37,914,943 793.629 18,030 790 2,167,4 1 Excess, Imports. . £ 8,231,111 £ 6,476 1.48 1904. 63,727,202 3 690,419 2.3,056,479 479,436 specular ore, 58 per cent.; los. 6d. for S. Silver: . £ 6,627,711 £10,337 731 Imports of gold for the week W'^re from Ger¬ Imports. P. Campanil. Manganiferous ores range . 6,991,675 11,060,92)1 many and the West Indies; of silver,from Mexico Exports. from IIS. lod. for 35 per cent, iron and 12 and South America. Exports of i-llver were to Excess, exports... £ 363,964 £ 713,189 manganese up to i8s. 3d. for 20 per cent. London; t*" ere were no gold ex ports for the week. iro;i and 20 manganese. All prices are There was a decrease of £2,755.463 in f.o.b. shipping port. The statement of the New York banks the net imports of gold this year. Pyrites—Iron pyrites, 40 per cent, iron —including all the banks represented in Prices of Foreign Coins. and 43 sulphur, are quoted at los. 8d. per the Clearing House—for the week ending

ton. f.o.b. shipping port. July 21 gives the following totals, com¬ Bid. Asked. parisons being made with the correspond¬ Mexican dollars.$0.60^ 10 63 Peruvian soles and Chilean. 0.465i 0.49K Chemicals. ing week of 1905: Victoria sovereigns.. 4.86)4 4.87)4 Twenty francs. . . 3.86 3.89 Spanish 26 pesetas. 4.78 4 80 New York, July 25. 1906. 1906. Loans and discounts.. $1,126,366,710 $1,046,668,760 Copper Sulphate—The market is strong, Deposits. 1,177 ..398,200 1,044,739,200 SILVER AND STEELING EXCHANGE. Circulation. 48,913.200 47,903,400 and deliveries somewhat slow, two or Specie. 220,196,500 193.066,300 Silver. ] Silver. three weeks being required to fill orders. Legal tenders. 89,109,000 87,609,600 Quotations are $6.12^2 per 100 lb. for car¬ Total reserve. $309,299,500 $280,676,800 J- Legal requirements_ 294,349,500 261,184,800 load lots, and $6.25 for smaller quantities. July. si Surplus reserve. $14,919,960 $19,391 ,oro London, Exchange. Pence. New York, Cents.

Xitrate of Soda—The market is steady, Sterling London. Pence. Cents. «ia New York,

with good demand. Spot, or short deliver¬ Changes for the week this year were 19 '4.84H 65)4 30^g i 23 4.86 66)4 1 30A ies. are quoted at 2.40c. for 96 per cent, increases of $9.4,35.200 in loans. $10,125,- 20 4.84)4 6614 3(M. 24 4.86)4 6474 30 and 2.32V2C. for 95 per cent. Futures are 000 in specie, $1,637,000 in legal tenders, 21 4.8434 66)4 80A 26 4.86H'! 66)4 i 30>« 2..30C. for 96 per cent, quality. $20,807,000 in deposits and $6,560,200 in New York quotations are for fine silver, per British Chemical Trade—Exports of surplus reserve; a decrease of $653,100 in ounce Troy. London prices are for sterling silver, 0.926 fine. heavy chemicals from Great Britain for circulation. THE ENGINEERING AND MINING JOURNAL. July 28, 1906.

Other Metals. 1906; showing decreases of 99 tons of inclusive; and lengths from 84 to 96 in., matte and 3970 tons copper this year. both inclusive. The freight rate to New York is 27.50. per 100 lb. The fluctua¬ Dally Prices of Metals In New York. Tin—In sympathy with other metals, the tin market in London has shown improve¬ tions in the base price for sheet zinc since c Jopper, Tin. Lead. Spelter. ment during the week, and closes higher Jan. I, 1906, have been small, the highest tS . at £170 5s. for spot and £169 15s. for three price having been $8 on Jan. 6, the lowest A $7.65 on May 18. 1., months. Very little interest is shown by Sk £ domestic consumers, who have not changed Imports and exports of spelter in Great Britain for the half-year ending June 30 S their policy of buying from hand to mouth. Lake, eta. per lb. London, £ per ton. St. Louis, Cts. per lb. New York, Cts. per lb. Ho 0 Ots. per lb. The metal at the close is quoted 3154 to were, in long tons: 18X 18 37 1906. 1906. OhangeB. 018^ 018)4 80)4 36)4 6.76 6.00 6.86 ^. 43,843 I. 1,628* 18)4 18 6.00 6.86 Imports and exports of tin in Great Spelter. ss Zinc sheets, etc. « to 9.309 D. 642 018)4 018)4 80)4 36X 6.76 (a)6.06 06.90 Britain for the half-year ending June 30 18)4 18 6.00 6.86 Total Imports. 62,066 63.162 I. 1,086 018)4 018)4 36\ 6.76 06.06 06.00 below. in long tons: Exports. 3,869 3,823 D. 46 18)4 18* 1906. Cbanges. 018)k 018* 81)4 37)4 6.76 6.06 6 90 1905. Balanca, Imports.. 48,197 49,329 18)4 16,482 19.289 I. 3,807 w* 2,090 I. 362 018)4 018* 37)4 6.76 6.02i 6.87i 1,728 81* other Countries... 638 1,453 I. 815 Imports of zinc ores are not given sepa¬ 18)4 18* rately in the returns. The figures do not 018)4 82)4 37)4 6.76 6.025 6.87J Total Imports.. 17,848 22,832 I. 4,984 include zinc exported in the form of brass. London quotations are per long ton (2,240 lb) . 13.832 17,483 I. 4,161 . 3,767 3,883 I. 116 Spanish Zinc Ore Market—Mtssrs. Bar¬ standard copper, which is now the equivalent of the former g. m. b's. The New York quotations . 17,099 21,366 I. 4,267 rington & Holt report from Cartagena, Spain, under date of July 7, that the for electrolytic copper are for cakes. Ingots or Balance, Imports.. 749 1,466 I. 717 wlrebars. The price of cathodes is usually 0.126c. local prices are unchanged. An im¬ below that of electrolytic. The lead prices are The larger part of the re-exports of portant contract is reported, for the pro¬ those quoted by the American Smelting * Befln- foreign tin were to the United States. duction of group of mines for a period of Ing Co. for near-by shipments of desilverized Lead—There has been no change in the several years. These mines produce about lead In 60-ton lots, or larger orders. The quota¬ market, either in London or on this side, 1500 tons a month of blende, averaging tions In spelter are for ordinary western brands; and quotations remain unchanged. 35 per cent. zinc. Exports for the week special brands command a premium. Imports and exports of lead in Great were 50 tons calamine to Hamburg, and Although the market is still Britain for the half-year ending June 30 1600 tons blende to Stettin. dull, the prospect of a revival in demand were as follows, in long tons: Silesian Spelter Market—Paul Speier is encouraging, and since the beginning 1905. 1906. Changes. writes from Breslau, Germany, that of the current week there has been more United States. .. 12,960 9,641 D, 3,409 spelter receded a little from the high Spain.... 60,346 66,610 I. 6,164 inquiry for copper and some good-sized Australia.... 39.431 25,900 D. 13,681 point reached last month. Consumers are Germany. .. 8.021 9,370 I. 1,349 orders have been taken for export and Other countries. .. 1,229 1,791 I. 662 holding back a little with orders. Prices domestic consumption. As a result, the are about 53.30 marks per 100 kg., equal Total Imports. ...111.977 102,112 D . 9,865 close is firmer at for lake cop¬ Exports.... 20,879 22,486 I. 1,607 to 5.72c. per lb. The foreign trade of per; 18 i/i6@i8 5/16 for electrolytic in Balance, Imports...... 91,098 79,626 D. 11,472 Germany for the five months ending May cakes, wirebars or ingots, and I7%(gi8c. 31 was, in metric tons: for casting copper. The lead credited to the United States is chiefly Mexican lead, refined here in ^Imports.—, ^Exports.—, The movement of the standard market 1905. 1906. 1905. 1906. bond. in London reflected the return of confi¬ 2,654 2,802 4,946 4,718 74 6 1,761 1,604 dence, which has been noticeable in all Spanish Lead Market—Messrs. Bar¬ 264 193 398 602 rington & Holt report from Cartagena, zlnc-duBt.. . 112 450 European speculative markets. There has Zinc oxide. . 417 1.642 been a well-sustained advance, and the Spain, under date of July 7, that silver 74 149 690 9,318 14,811 2,371 3,612 close is cabled as firm at £82 los. for spot has been 13.25 reales per ounce; ex¬ and £81 5s. for three months. change, 27.72 pesetas to £1. Pig lead has Exports generally show a fair increase Refined and manufactured sorts we been 77.25 reales per quintal; equal, on over last year. current exchange, to £15 12s. 2d. per long quote as follows: English tough, £85@8s Antimony is steady and a fair business ton, f.o.b. Cartagena. Exports were 96 los.; best selected, £86; strong sheets, £93. is doing for spot delivery. Quotations are Exports of copper from New York for tons argentiferous and 65 tons desilver¬ 2254@23c. for ordinary grades and 24(^ ized to Marseilles; 170 tons argentiferous the week were 2123 long tons. Our special 25c. for specials. correspondent reports the exports from to London; 400 tons desilverized lead to Nickel—Quotations for large lots. New Baltimore for the week at 621 long tons Liverpool. York or other parallel delivery, as made of fine copper. Spelter—There has been some specula¬ by the chief producer, are 40@45c. per Imports of copper and copper material tive buying, presumably against short lb. for large orders, according to size of into Great Britain, with exports of metal, sales, and as a result some business was order and terms. For small lots, 50(g65c. were as follows, for the half-year ending done at an advance. Prices to consumers, is charged. June 30; the totals giving the estimated however, remain practically stationary, contents of all material in long tons of and the market closes steady at 5.87J4 Platinum—Demand is strong and steady. fine copper: St. Louis and at 6.0254 New York. Prices are unchanged, $26 per ounce in 1906. 1906. Changes. Spelter has been no exception to the rule New York. From $20 to $23 per ounce is Copper ore. 43,056 46,689 I. 2.633 in London, where a further advance has paid for scrap platinum. Matte and precipitate.. 30,618 36,142 I. 6,624 Fine copper. 36,094 37,289 I. 1,196 been recorded, the close being cabled as Quicksilver—The metal is firm and Total Imp. fine copper 66.709 69,929 1. 4,220 £27 for good ordinaries and £27 5s. for New York prices are still $41 per flask of Exports. 20,297 21,128 I. 831 specials. 75 lb. for lots of 100 flasks or over, and Balance. 36,412 38,801 I. 8,389 Zinc Sheets—The price of zinc sheets is $42 for small lots down to 10 flasks. For Of the imports 2095 tons of matte and $7.75 per 100 lb. (less discount of 8 per retail quantities, under 10 flasks, pound 15.933 tons of.fine copper were from the cent.) f.o.b. cars for Lasalle and Peru, in prices are charged, which work out to United States in 1905, against 1996 tons 6oo-lb. case for gages No. 9 to 22, both about $43 per flask. San Francisco prices of matte and 11,963 tons of fine copper in inclusive; widths from 32 to 60 in., both are firm at $39.50 for domestic orders and July 28, 1906. THE ENGINEERING AND MINING JOURNAL. 191

$38 for export. The London price is £7 prices. Several new mills will be started Mining at $4.75; Montana Tonopah at 5s. per flask, while jobbers are selling at early in August. $2.90, with good buying. £7 2s. 6d. The value of the shipments of zinc and On the Consolidated Exchange mining Imports of quicksilver into Great lead for the year to date has passed the shares were dull, and the business was Britain for the six months ending June eight-million point, and is nearly one mil¬ light. Among the sales and prices noted 30 were 2,465,768 lb. in 1905, and lion dollars greater than the same period were $5 for Tonopah Belmont; $3.40 for 1,934.771 Jb. in 1906; a decrease of 530,997 of last year. The shipments are 10,871 Ophir; 90c. for Consolidated California & Ib. Exports were 923,535 lb. in 1905, and tons of zinc and 4150 tons of lead greater Virginia; 54c. for Golden Anchor. 985,106 lb. in 1906; an increase of 61,571 than for the same week last year. lb. this.year. Following are the shipments of zinc and Boston. July 24. Aluminum—The chief producer gives lead for the week ending today: There has been little to excite com¬ list prices, for ton lots and over, as fol¬ ment in the local copper share market the zinc, lb. 1 Lead.lb. Value. lows : No. I, over 99 per cent, pure, 36c. last week, and price variations have been Joplin. 2,664,090' 266,790 $66,244 slight. The action of Amalgamated Cop¬ per lb.; No. 2, over 90 per cent., 34c. Webb Clty- jartervlile. 2,129,190 446 960 63,332 Small lots are from i to 3c. higher. Gran¬ Oalena-Emplre. 1,239 440 295,280 36,950 per directors in not increasing the divi¬ Duenweg. 596,860 160,050 18,646 ulated metal is 2c. per lb. over price of Aurora. 997,230 16,068 dend rate last week was favorably re¬ Badger-Peacock .. 499,720 11,490 ceived by the conservative element. Wol¬ ingots; rods, ic. per lb. over ingots. Rolled Neck City. 463,060 10,660 sheets are 45c. per lb. up, according to Granby. 710,000 45,000 9,300 verine mining made a record today by Alba. 380,070 8,741 size. Baxter Springs. 182,440 82,780 6,710 touching $143. This is an advance of $5 Prosperity. 66,160 110,320 6,614 over a week back. Amalgamated has fluc¬ Oronogo. 240,130 12,190 6,489 Wiscontin Ore Market. Cartbage. 213,760 4,916 tuated from $95 to $98.25, the low price Zincite. 163.240 490 3,610 Spurgeon . 169,170 9,360 2,817 immediately following the dividend an¬ Platteville, July 21. Sherwood. 92,010 5,650 2,229 nouncement last Thursday. Tonight’s Diamond. 65 660 1,224 There was a pretty steady market for all Cave Springs. 45,790 1,010 closing was $97, or fractionally above a grades of zinc ore, especially the roasted Totals. 10.705 760 1,422.760 i274,939 week ago. Daly-West took a spurt of product. The current week has been one 29 weeks.301,060,670 42,109,290 $8,116,124 $1.62^ to $17.25 on some demand and of the poorest in the way of shipments for slight offering of the stock. Osceola has Zinc value, the week, $222,376 ; 29 weeks, $6,613,078. the year, owing principally to a shortage Lead value, the week, 62,664 ; 29 weeks, 1,603,746. been in fair request, touching $103.50 and of cars. The largest tonnage reported The following table shows the average closing $1.50 above a week ago at $102. was from Cuba City camp. Local buyers monthly prices of zinc and lead ores in Old Dominion is $2 better at $38.50, Cen¬ claimed that they were paying more for Joplin, by months; the average for zinc tennial $2 better at $22, while Copper Wisconsin ore, grade for grade, than Jop¬ being based on the prices of assay basis Range advanced $i.62j4 to $7i-37J^ ori lin operators were receiving for their ore. ores carrying 6o per cent, zinc: moderate purchases. Notwithstanding the The top price for 60 per cent, ore was strike at the Quincy mine the stock is un¬ $44, some of the higher grades command¬ affected. In fact it is $1.50 higher than a ZINC OBE AT JOPLIN. LEAD ORE AT JOPLIN. ing as high as $47.50. A large percentage week ago. Shannon has been active and of the different grades of ore is shipped strong touching $9.75. The Calumet & Month. 1905. 1906. Month. 1906. 1906. to Chicago and the East. Just as soon as Hecla report shows the prosperity that the the De Pue works are started the opera¬ January... 62.00 47.38 January.... 61.60 76.20 copper mines in general are having. Net February... 62.77 47.37 1 February... 67.62 72.83 tors here look to an increased market. 47.40 42.68 67.20 73.78 earnings for the year ended April 30 were The camps of the Platteville district 42.88 44.63 68.00 76.13 43.31 i0.61 58 27 78 40 $8,485,630, against $5,061,150 the year this week loaded ore as follows: 40.76 43.83 67.80 80.96 previous, from which $5,000,000, or $50 43.00 68.00 Camps. • 2:inc. Lead. Sulphur, Auguet. 48.83 : August. 68.00 per share, was distributed to stockholders Lb. Lb. Lb. September. 46.76 I September. 63.60 Platteyllle. 268,360 .. October.... 47.60 October..... 63.86 against $45 the previous year. The com¬ Cuba City. 360,020 . November.. 49.66 1 November.. 68.67 pany’s surplus April 30 was $10,629,819. Benton. 198,100 . December.. 49.00 ; December.. 76.26 Highland. 06,200 . Arizona Commercial rose $8.50 on the Linden. 91 960 . curb during the week to $41, but is back Buncombe & Hazel Oreen 80,200 . Mining Stocks. Livingston. 60,000 . to $36.50 tonight. Mineral Point. 41,760 . New York, July 25. ToUl for week. 1,147,820 41,760 . A sharp bull movement was the feature Colorado Springs. July 20. Tear to July 21.36.861,020 1,946,140 3,369.980 of the week, prices recovering several The market in Cripple Creek stocks has Since July i there has been a shortage points from last week. It had very much been quite active on the local mining ex¬ of cars. The Empire at Platteville has the appearance of a manufactured article, change during the past week, although seven or eight carloads of high-grade ore however, and was too brief to bring out the volume has not equaled that of the sold and ready for shipment, but lack of much genuine buying. previous week. cars prevented loading. Amalgamated Copper went to $97^ on The dividend paid July 15 by the Port¬ the rise; the declaration of the 1% per land. Company brings the total of that MiMonri Ore Market. cent, dividend—the same as last quarter— company up to practically $7,000,000 paid.

Joplin, July 21. had little effect. American Smelting com¬ The highest price reported paid for zinc mon closed at $14554, and United States San Francisco. July 19. was $48 per ton, on an assay basis price of Steel preferred at $I03J4. There was one The business on the exchange is im¬ $41 to $45 per ton of 60 per cent. zinc. sale during the week of Homestake, of proving and people begin to take more in¬ The average price is $41.54. South Dakota, 200 shares changing hands terest in stocks. The Comstocks are dull The highest price paid for lead was re¬ at $83 per share. and unsteady; but there is some trading ported at $75.50 per ton, $i per ton higher On the curb mining stocks were rather in the Tonopahs. than last week. The average price was dull, in spite of the general advance. Among the Comstock sales noted are $73.88. Greene Consolidated Copper showed the Consolidated California & Virginia at 93c.; Heavy rains, together with some large heaviest trading, but without much change Mexican, 74c.; Savage, 71c.; Sierra Ne¬ mills being closed for midsummer repairs, in price, closing at $2oJ4- There are ru¬ vada, 23c. Tonopah quotations included have curtailed the output of zinc ore to mors of a contest for control, but they do $5.50 for Tonopah Extension; $2.40 for a point as low or lower than the demand; not seem to have any definite foundation. West End; $2.10 for Midway; and 27c. this is the principal cause of stronger Nipissing Mines sold at $5.50; Mitchell for Ohio Tonopah.

I 102 THE ENGINEERING AND MINING JOURNAL, July 28, 1906.

STOCK QUOTATIONS. COLORADO SPRINGS. July 21. Monthly Average Prices of Metals. Name of Company. High Low Clg Sales NEW TOBK. Week July 34 Acacia. 14% 14% 14%, 16.000 SILVER. Name of Company. High Low Clg. Sales C. C. Con. e% 6% 6%l 16.000 Doctor Jack Pot. 9 8% 8% 31,000 New York. London. Amalgamated. 98% 9i% 97 368.810 Elkton. 49 47 47 13;312 Month. Anaconda*. 249 333 244 139.270 El Paso. 43% 42 43% 21,200 1906. 1906. 1906. 1906. British Col. Copper... 7% 7% 7% 2,860 Findley. 76 74% 76 6,800 Butte Coalition. 31% 29% 29% 7,600 Gold Dollar. 8% 8 8 6,360 Cum. Ely Mining. 7% 6% 7% 4,710 Gold Sovereign. 6% 6% «% 7,600 January. 60.690 66.288 27.930 80.118 Greene Gold. 2% 2% 2% 320 Isabella. 23% 22% 22% 12,000 February. 61.023 66.108 28.047 80.464 Greene Gold A Sllvei. 1% 1% 6,376 Jennie Sample. 10% 0% 9% 21 600 March. 68.046 64.697 26.794 29.864 Guanajuato. 6% 6 6% 2,280 Mary McKinney. 60 49 49 April. 66.600 64.766 26.108 29.964 Mlcmac. iV 4% 4% 7,360 Portland. 1.60 1.46 1.60 766 May. 67.882 66.976 26.664 30.968 Mines Co. of Am. 1.26 1.20 1.20 4.230 United Gk>ld Mines. 10 9% 9% June. 68.428 66.894 26.910 30.185 Mitchell Mining. 5% 4% 2,460 Vindicator. 93 93 93 1 68.916 27.168 Mont. Sho. Con. (New) 14 11 11 660 Work. 10% 12 13 91,066 60.269 27.822 Nev. Utah M. A S. 3% 2% 3% 6,196 61.696 28.628 Nipisslng Mines. 6>4 6% 6% 8,600 AQ mu 28.637 Tenness^ Copper_ 40 38% 40 1,700 SAN FRANCISCO. July 19. November. 63.849 29.493 Union Copper. 1% 1% 1% 2,700 December. .. 64.860 29.977 Utah Apex. 6 6% 6% 1,200 Name of Company. High Low Clg Sales Year. 60.362 27.839 NEW YORK INDUSTRIALS. Best A Belcher. .76 .68 .68 900 Caledonia. .32 .31 .32 300 The New York prices are In cents per line Am. Smelting A Ref.. 147% 142% 1 145 86,360 Choilar. .13 .11 .13 3 600 ounce; the London quotation is In pence per 4 800 Am. Smelt. A Ref., Pf. 116%; 116% 116% 600 Con. Cal. A Va. .95 .84 .90 standard ounce, .926 fine. Bethlehem Steel . .. 22 22 ! 22 300 Crown Point. .11 .11 .11 100 Colo. Fuel A Iron. 60% 47 1 48 66,700 Go lid A Curry. .09 08 .09 1,400 Federal M. A S., Pf.*.. 94% 93% 94% 200 Hale A Norcroes. .90 .85 .90 600 COPPER. Inter. Salt. 33 3J I 32 Mexican. .75 .64 .78 6,200 National I/>ad. 76% 72%! 74 11,666 Ophlr. 3.60 3.40 3.60 2,050 NEW YOBK. National Lead, Pf 101% 101%l 101% ^ 300 Overman.. .13 .13 .13 900 LONDON. Pittsburg Coal. 14%'*14%| 14% 1 100 Potosl. .16 .13 .16 3,600 Electrolytic. Lake. Republic I. AS. 26% 24%! 26% 1 4,760 Savage.. .. .74 .66 .71 2,200 Republic 1. A S., Pf... 96% 94 ! 96 1 2,400 Sierra Nevada. .24 .20 .20 2.600 1906. 1906. 1906. 1906. 1906. 1906. Sloss-Sheffield. 72% 70 i 71% 2,700 Bullfrog Mining. .39 .36 .36 6,700 17 300 Tenn. C. A I*. 161% 143% 161 6,466 Diamondfield. .34 .81 .82 Jan. 16.008 18.810 16.128 18.416 68.262 78.896 11,900 U. S. Bed. A Ref. 36% 36 36 600 Goldfield of Nevada.. . .41 .31 .31 Feb.. .. 16.011 17.869 16.136 18.116 67.963 78.147 U. S. Bed. A Ref., Pf.. 77 ' 72% 72% 700 Jim Butler. 1.16 1.07% 1.07% 6,600 March.. 16.126 18.361 16.260 18.641 68.174 81.111 600 U. S. Steel. 36% 33% 1 36 I 296,200 Kendall. .66 .66 .66 April. .. 14.920 18.876 16.046 18.688 67.017 84.793 9,700 U. S. Steel. Pf. 104 101 I 103% ; 94,960 MacNamara. .71 .64 .70 May.... 14.627 18.467 14.820 18.724 64.876 84.867 13,600 Va. Car. Chem. 36% 34% 1 34% 800 Manhattan Dexter. .47 .42 .44 June... 14.673 18.442 14.813 18.719 66.881 83.994 11.700 North Star. .46 .43 .43 July.... 14.888 16.006 66.887 12.100 Original Bullfrog. .14 .13 ; .14 Aug.. .. 16.664 16.726 69.830 4,800 • Ex. dlv. Tonopah Belmont . ... 6.12% 1.70 14.76 Sept.... 16.966 16.978 69.667 Oct. 16.279 16.332 71.406 Nov.. .. 16.699 16.768 74.727 BOSTON. Tonopah Stocks July 26. 18.328 18.398 78.993 (Revised by Weir Bros. A Co., New York.) Adventure. 6 5% 6% 160 Year.. 16.690 16.699 69.466 Allouez. 33 31% 32% 944 High. Low. Last. Atlantic. 16 14 14% 610 Tonopah Mine of Nevada... . 18.78 18.63 18.60 New York prices are In cents per pound. Elec¬ Bingham. 28% 26% 27% 1,314 Tonopah Montana . . 2.86 2.81 2.83 trolytic quotations are lor cakes. Ingots or wire Boston Consolidated.. 26 24 24% 1,070 Tonopah Extension. . 6.62i 6.37i 6.62^ bars. The London prices are In pounds sterling, Calumet A Arizona... 111 107% 110 326 Tonopah Midway. . 2.20 2.20 2.20 per long ton of 2,240 lb., standard copper. Calumet A Hecla. 636 679 686 90 Tonopah West End. . 2.46 2.40 2.46 Centennial. 22 20 22 827 Goldfield Mining Co. .. .36 .36 .36 Copper Range. 71% 69% 70 3,061 Jumbo Mining. . 1.12 1.10 1.10 TIN IN NEW YORK. Daly-West. 17% 16% 17 2,963 Red Top.. .. 1.17 1.16 1.17 Franklin. 16% 16 16% 616 Sandstorm. .. .63 .62 .63 Month. 1906. 1906. 1 Month. ! 1906. 1906. Granby. 11% 10% 11% 2,293 Montgomery Shoshone Cons 11.60 11.26 11.25 Greene Consolidated.. 21% 20 20% 6,436 Eclipse-Bullfrog. i Isle Royal. 17 16% 16% 210 Denver-Bulltrog. 39.335 36.390 , July.131.760 Mass. 7 Jan. 6% 6% 236 Fob. 29.262 36.403 | August ....132.866 Michigan. 13% 12 12% 346 29.623 36.662 | Sept.132.096 •Mohawk. 62 60 61 St. LonU. July 21. March. 602 April. 30.626 38.900 I Oct.132.481 Mont. Coal ACoke rets. 2% 2% 2% 696 30.049,43.313 ; Nov. 38.443 Nevada. 17% Adams, 90.40—$0.26; American Nettle, 90.16— May. 17% 1T% 1,626 June. 30.329 39.260 ' Dec.136.836 North Butte.:. 86% 84 86 . 6,624 90.10; Center Creek, 93.16—91.80; Central Coal and Ooke. 970 00—969.00; Central Coal and Coke, ptd., Old Dominion. 39. 36% 1 38% 1,182 Av. year.|31.368i Osceola.. 103 100 102 1,232 980.00-979.00; Central Oil. 960.00-968 00; Columbia, Parrot. . 26 24 26% 642 96.00—92.00; Con. Coal, 922.50—920.00; Doe Run (old Prices are in cents per pound. Quincy. 84% 83 84% 132 stock), 9360.00-9300.00; Granite Blmetallc, 90.26— 90.20; St. Joe (old stock), 932.00-930.00. Rhode Island. 3% 3% 3% 626 LEAD IN NEW YORK. Shannon. 9% 9% 9% 6,619 Tamarack. 93% 93 93% 74 Month. 1906. Tecumseh. 10 9% 10 70 LONDON. {By Cable.*) July 26. Month. 1906. 1906. Trinity. 8% 8 8% 1,180 Dolores, £l 178. 6d.; Stratton’s Independence, United Copper, com.. 63% 61% 61% 3,990 £0 48 Od.; Camp Bird, £1 4s. Od.; Esperanza, £3 4.662 6.600 July. 4.624 U. S. OU. 10 Jan. 9% 10 200 16e. 3d.; Tomboy, £1 38. Od.; El Oro, £1 68. Od.; Feb. 4.460 6.464 Aug. 4.666 U. S. Smg. A Ref_ 66 64 64% 400 Orovllle, £0 168. Od.; Somera, £0 2s. 6d.; Utah 4 470 6.360 Sept. 4.860 U. S .Smg. A Ref., pfd. March. 46% 44% 44% 1,426 Apex, £1 38. 9d. April. 4.600 6.404 Oct. 4.860 Utah Copper. 66% 63% 64 2,422 •Furnished by Hayden. Stone A Co., New York. .6.686 Nov. 6.200 Victoria. May. 4.600 7 6% 6% 161 June. 4.600 6.760 Dec. 6.422 Winona. 6 4% 4% 2,316 Wolverine. 143 138 143 270 New Dividends. A V., year. 4.707 Company. Payable. Rate. Amt. Prices are In cents per pound. The London These stocks, not elsewhere quoted, had the average for January, 1906, was £ 16.860 per long following range of prices during the week: (New ton; February, £ 16.031; March, £ 16.922; April, York) Am. Agrl. Chem., 22; Gold Hill. 3—2%; Amalgamated Copper.Aug. 37 1.76 1,713,600 £ 16.869; May, £ 16.726 ; June, £16.813. Comstock, .14: Gugg. Exp., 236—224; Free. Metals Boston A Montana.. 12.00 1,800,000 Co., 6%; StandardOll, 600—609. (Boston) Ahmeek, Cambria Steel.A g. 16 0.66 676,000 76 ; Arls. Com’l . 40%—32%; Black Mt.. 7j—7i; Greede United.July 16 0.00% 8.126 SPELTER. East Butte.O—8J ; Keweenaw, 9 ; Majestic, 1^— Consolidation C -al.July 31 91.50 9 Kl,7eo 1; Raven, .88—.76 ; Shawmut, 1 ; Superior k Con. Mg A Sm. of Canada... Aug. 1 2.60 117.240 New York. St. Louis. London. Pitts., 15j—16; Troy, li—IJ. Doctor-Jack Pot.July 26 0 00% 16,000 Month. 1906. 1906. 1906. 1906. 1906. 1906.

PHILADELPHIA. July 24. Assessments. Jan.... 6.190 6.487 6.032 6.337 26.062 28.226 6.924 24.694 26.844 Company. Dellnq. Sale. Amt. Feb.. 6.139 6.076 6.989 Name of Company. High Low Clg. Sales. Mar... 6.067 6.209 6.917 6.066 23.825 24.663 April.. 6.817 6.078 6.667 6.931 23.813 25.781 Am^riiVin Cem'^nt. 7 7 7 10 Belcher, Nev . .July 18 Aug. 8 90.10 May... 6.434 6.997 6.284 6.846 23.694 27.000 Cambria Steel. 84% 84% 84% 999 Bullion, Nev. ....July 10 Aug. 1 0.06 June.. 6.190 6.096 6.040 6.948 23.876 27.406 General Asphalt. 8 8 8 4 Con. Cal. A Va. ..July 9 July 30 0.26 July .. 6.396 6.247 23.938 Penn. Steel, pd.. 106% 106% 106% 3 Exchequer, Nev. . July 11 Aug. 1 0.06 Aug.. 6.706 6.666 24.676 Philadelphia Co*. 48 47% 47% 90 Justice, Nev. ..July 11 Aug. 2 0.06 Sept.. 6.887 6.737 26.376 Tonopah Mining*. 19% .18% 18% 901 Mexican, Nev. ..July 10 July 31 0.16 Oct... 6.087 6.934 28.226 Old Col. A Eureka, Utah. ..July 26 Aug. 13 0.001 Nov.... 6.146 6.984 28.600 PITTSBURG. July 24. Overman, Nev. ..July 18 Aug. 3 0.10 Dec.... 6.622 6.374 28.719 Potosl, Nev. July 16 Aug. e 0.10 Quincy Junior, Utah_ ..July 26 Aug. 16 0.10 Crucible St.'s!.I 12 : 11 11% 1,«S0 Year. 6.882 6.730 25.433 Crucible Steel, PL.I 76% 76 76 1,926 Sierra Nevada. ..July 10 Aug. 1 0.10 Harblson-Walker Ref..' Scorpion, Nev. ..July 10 July 31 0.02 New York and St. Louis prices are In cents per 11%, 11 11% 300 pound. Tbe London prices are In pounds sterling Ohio Tonopah.1 .28 .26 .28 Union, Nev. .. Aug. 16 Sept. 6 0.10 6,920 per long ton (2,240 lb.) good ordinary brands. Tonopah Ext.* 6% 6% 6% 6 686 Utah, Nev. ..July 18 Aug. 8 0.10

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