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THE ENGINEERING AND MINING JOURNAL

VOLUME LIV., JULY TO DECEMBER, 1892.

i3srr3E32;.

Alumina and Iron, .Separation of.270 Ammonia Production from Nitride of Arnold Copper Mg. Co.13, 231, 422, 566 Alumina, Process of Obtaining, Titanium.347, 607 Arrastra in Metallurgy of Gold.626 Aaron, C. A., Shaw Mine, Cal. 487 Dewey’s Patent. 44.3 Ammonia Process, Kuntze’s Patent.. 635 Arsenic and Antimony, Effect on Cop¬ Abiank-Abakanowicz, B .276 Aluminum Alloy, Whitney’s Patent.. 1.56 Ammonium Sulphates. Production in per. 177 Acto 1 Back Pressure Valve*. 69 Aluminum, Alloys, Properties of. 100 Great Britain. 293 Artesian Wells, Apparatus for Bor¬ Achb’ Process of Preparing Eugenol- Aluminum Budding at Chicago.229 Anaconda Copper to be Treated in ing, Elder’s Patent. 419 Benzyl Erher. Patent. 539 Aluminum, Cheap. 436 Baltimore. 25 Artesian VVells, Bounties for.323 Accilents, Railroad, in Great Britain, 276 Aluminum, Effect on the Magnetic Anaconda Gold Mine, Colo. l’>9 Artesian Wells for Irrigation. 73 Acaiieiny of Sciences. 549 Conductivity of Iron. .56 Anaconda Gold Mg. Co.6:j, 133, 159 Asbestos in Georgia.517 Adams Mg. Co ..401 Aluirinum, Exporimenls on Solu¬ Anaconda Mg. Co.. 15, 39, 63, 207,279. Asbestos in Canada. 273 Adams Mine, Colorado. U bility of. 1.55 326, 3.i0, 374, 399, 422. 469, 517, .543, 567, Asbestos Mines, Quebec. 256 Ana.ns, John M. 132 Aluminum and Iron. Separation of.. 31 615, 633 Ashland Iron Ore i8hip....l61, 185,256, 597 Ada County, Haho. 182 Aluminum, Neuhausen Co. 107 Analysis of Nickel.510 Ashland Mg. Co. 544 Addle Mining Co. 185 Aluminum, New Name Proposed Anarchist’s Explosive. Sebastine. 33 Asphalt Blocks, Method of Forming, Adventure Copper Mining Co. 278 3, 75. 99. 177 Anchor Mg. Co... .209, 2.56. 328. 472. 640 McCarter’s Patent. 59 Africa, Central, Iron Smelling in..366 Al'iminum, Process for Adding to the Anderson, Gen. Jos. R.2-52, 276 Asphalt in Utah.... 568 Agua Eria Mining Co. 415 Re.-i stance of. 177 Anderson Mine. Mont. 15 Asphalt in Montana. 135 Agriculiural .'Science Society. 2l'4 Aluminum Racing Shells..587 Anderson’s Quartz Crusher. 15S Asphaltum, Manufacture of, Dubbs’ Ague) Mine, Utah . 185 Aliiiiiinuni, Soldei for. 578 Anderson, W. C. 612 Patent Process. 131 Agent’s Authority for Purchase of Aluminum, Solder, Richards’ Patent. .59 Andrews, C. B.492 Aspen, Ulolo., Mines.470, 565 Mines. 418 Aluminum, Soluble Hydrate.315 Andrews, E. B.396 Aspen Contract Mg. Co. 421 Aga'e Harbor Mg. Co. 303 Aluminum, Specific and Latent Heat Andrews, Guy. 492 Aspen Mg. Co.11, 227, 346 Air, Solid Matter in.'.... 11 83. 270 Anglo-American Oil Co .185 Aspen Mining and Smelting Co., 62, Air Compressor, Dillenbroy’s Patent.. 227 Aluminum-Titanium Alloys..366 Anglo-Mexican Mg. Co. 161 66. 109. 163, 2.53, 277, 421, 470, 565 Air Compressor, Farrell’s Patent. 83 Aluminum Works at Rome, Ga.278 Annealing Furnace, Cowle’s Patent.. 83 Aspen Mountain Tunnel Co.421 Air Compressor, Hutchinson’s Patent. 179 Aluminum Yacht. 362 Annealing Furnace, Gas*.129 Aspen Ore Shipments. 277, 637 Air Compressor, Radford’s Patent_ 131 Amador Queen Mg. Co.230 Annealing Wire by Electricity. Hun¬ Aspen Stock Market.Weekiy Aikens’ Open Hearth Furnace.227 Amalgamated Association, Iron & ter’s Patent. 419 Aspinwall Mine. Utah. 256 Akers, VV, A. 84 Steel Workers.12. 252. 516, 588 Annie Cons. Mg. Co .— 88 Assay Furnace for Bituminous Coal*. 24.5 Alabama Bau.Kite.541, .584 Amalgamating and Crushing Mill, Anselmo Mine, Mont.63, 160. 591 Assay Plant, Gas*.,.....393 Alabama Beryl . 439 Crawford .82, 99 Anson, S., Copper Mine, N. M. 64 Assessments on Coal Property, Alabama Geological Survey.. .98, 243, 578 Amalgamating Process. Magee & Anson Smelter, Hanover, N. M.15,16 Schuylkill Co„ Penna.1.36 Alabama Industrial and Scieutiflc Daegling. 2.55 Anthony Phosphate Co. 86 Assessments on Mining Stock ..Weekly Society.435 Amalgamating Silver Ore, Janus’ Anthracite Cleaning by Air Blast. 380 Astoria, Hollywood and Middle Bar Alabama Mineral Land Co. 302 Patent Process. 197 Anthracite Coal Combination. 66. 114, Gold Mines. 89 Alabama Rolling Mill Co.348 Amalgamator, Fyfe’s Patent. 156 163, 241, 282, 380. 428, 404, 452, 500, 524, Atkinson’s Coal Cutting Machinery.. 2z7 Alamo Mine, Utah. 16 Amalgamator and Ore Concentrator, 548, 572. 596. 620, 614 Atkins’ Process of Separating Gold Alaska Coal Co .468 Moreland’s Patent... 83 Anthracite Coal Market.Weekly from Ores.419 Alder Gulch District, Mont.183 Amalgamator. Conner & Eddy’s l*at- Anthracite Coal Meeting . 3.515 Atlantic Mg. Co. ..14. 253, 278, 303, 350, 422, Alaska Gold Mines. 205 ent. 59 Anthracite Coal Miners’ Wages.356 566, 590 Alaska Mexican Gold Mg. Co.613 Amalgamator, Jordan’s*.299 Anthracite Coal Prices. 1.38, 306 Atlantic & Pacific Tunnel Co. 230. 375 Alaska, Steamboat Transportation in. 158 Amalgamator, Mudie’s*. 115 Anthracite Coal. Prices Increased_ 19 Atlas Iron Works. 468 Alaska-Treadwell Gold Mg. Co., 11. Amalgamation vs, Russell Process... 580 Anthracite Coal Rates. 282,380,524 Atlas Mine, S. Dak. 592 104, 109, 20.5, 302, 373, 442. .538 i Amend & Macy’s Process of Desul¬ Anthracite Coal Tariff. 235 Atlas Mg. Co. 401 Alatorre, Manuel. 1.57 phurizing Oils. 156 Anthracite Coal, Tests of, in Boilers.. 66 Attwood. George. 12 Alavieska Mg. Co.326 American Assn, for the Advancement Anthracite and Bituminous Coal, Atwater’s Blast Furnace. 443 Alembic, Kuess’ Patent.635 of Science.157, 204 Standaid of. 420 Auchman’s Blasting Powder. 347 Alexandria Mines, Nev.183, .375 American Ball Pulverizer*.297 Anti-Friction Alloys, Bottome’s Pat.. 371 Audenreid Colliery, Penna.615 Algeria Coal & Coke Co.640 American Bell Mine. Colo. 109 Antimony-Aluminum Alloys, Proper¬ Augusta Mine, Colo. 108, 397 Algoma Nickel Mines.. 147, 363 Anperican Chemical .Society. 12 ties of. 100 Augusta Mg. & Investment Co., Alcon Iron Mine. 518 American Coal Co.11, 163,346, 617 Antimony in Electrolytic Copper. 78 372, 421, 446, 468, 541 Algonquin Mill, Mont. 399 American Development & Alg. Co..24, Antimony, Electrolytic Process for Aurora Colliery, Penna. 592 Alhambra Mine, N. Mex.472 160, 375, 399 Obtaining. 177 Aurora Lead Mg. Co.II, 471 Alice Furnace Co.— KO American Eagle Mg. Co.256 Antimony Mines, English. Closed... ^8 Aurum Mine. Ariz. 229 Alice Gold & Silver Mg. Co., 110. 183, American Engineering Schools. 115 Antoinette Mine, Colo. 303. 349 Austerlitz Mine, Ariz. 397 256, 279, 614 American Emery Wheels. 539 Anvil Mg. Co.614 Austin & Lewis, Machine for Making Alkali, Apparatus for Recovering, American and English Freight Cars... 214 Appleton Iron Co. 279 Sheet Metal Change.227 Blackman’s Patent . 83 American Forcite Co.’s Works.. _ 76 April Fool Mine, Nev.'231 Austin Mg. Co . 471 Alkali Process, Simple. 51 American Gas Co. 88 Apyrite, Smokeless Powder. 250 i Austin Smelting Process. 184 Alkaline Water of Soap Lake, Wash. 417 American Institute Fair. 409 Aragon Iron Co. 14, 134, 374, 5^, 614 Austin, W. L. 420 Al-ki Mg. Co.305 American Institute of Mg. Eng. Meet¬ Arbitration and Labor.218 Australian Diamond Mining.. 149 Allen's Pump for Oil Wells.179 ing...6. 33. 368 Areas Electrolytic 4*rocess. 199 Australian Miners, Old Table Of Allentown Rolling Mills. 12 American Institute of Mining Engi¬ Areal Work of the U. S. Geological Measures. . 483 Allison District, Wash.88.112, 281, 376 neers.6, 33, 276, 301, 368, 544 Survey.392 Australia, Barrier Range .Silver Fields Allison, Wm. B. 492 American Iron Mg. Co.1.34. 279 Argentif. Zinc Lead Sulphides.269, 295 340, 625 Allit, New Name for Aluminum_3. 7-. American Mine, New Mex.39, 208, 470 Argentine District, Utah. 185 Australia, Emeralds in.328, 545 Allouez Iron Co. 231 American Natural Gas Co. 16 Argentine Mg. Co.421 Australia. Platinum in.568 Allouez Mg. Co.14, 38, 253, 303, 326, American Nettle Mining Co .11. 206 Argentine Republic. Imports of Iron. 228 Australia, Statistical Account of the 446. 614 American Nickel Steel Armor Plates Argentine Republic, Battle-ships for.. 539 Seven Colonies. 146 Alloy, New, Crocker & Coliver’s Pat., 131 in Russia.483 Argent Mines, Idaho .230 Australia. Use of Vannersin. 112 Alloys, Formation Under High Press- American Republics, Bureau of. Bul¬ Argyle Mining Co . 11 Austria Hungary. Geological Survey 435 1 ure.505 letin.602 Arizona Copper Co. 85 Austria Hungary Gold Standard.354 Alloys, Process of Electro-depositing, American Republics, Commercial In¬ Arizona, Cyanide Process in. 3' Austria, Mineral Output.322 Cole's Patent.5.39 formation. 98 Arizona Mineral Production. 565 I Austrian Coins. New. 444 Alloys. Structure of. 34 American Society of Mechanical Engi¬ Arizona Mg. Co. Returns. 373 | Austrian Florin, Value of. 132 Alpha Cons. Mill & Mg, Co.401, 447 neers . 540 Arizona, Seven Stars Mine*.341! Austrian Glass at Chicago. 444 Alps Mg. Co .134, 446 American Tin Mines. 98 Arkansas Geolog. Survey. 122, 243, 363, 628 Austrian Patent Law.486 Alta Mine. Mont .208. 254, 468. .585 American Turquoise Co.641 Arkansas Valley Smelting Co. 85 I Automatic Hatch for Buckets, Dole’s Alta Mg. Co. vs. Benson Smelting & American Water-Works Assn.554, 564 Arlington Mine, VVash. 281 Patent. 419 Mg. Co. .... 585 Amethyst Mines. Creede. Colo., Armor Plates, American Nickel Steel, * Avalanche in Switzerland.245 Alternating Currents of High Poten¬ 86, 133, 421, 590, 637 in Russia. 483! Avuncar Mine, Mont. 471 tial and High Frequency. 98 Ammonia Distilling Apparatus, Row¬ Armor Plates, Process of Casting ! A. Y. & Minnie Mg. Co.37, 62, 8.5, 230 Alternating Currents, Theory of.. 227 land Patent. .59 Cnase’s Patent. 467 Aylsworth & Payne’s apparatus for Alumina, Apparatus lor Making, Ammonia from Blast Furnace Gases. 316 Armor Plate, Tempering Curved.371' extracting gold from ores.227 Shepard’s Patent. 635 Ammonia Motor for Street Railroads. 204 Armor Plate Tests at Bethlehem. 132 Azimuth Circle, Ritchie’s Patent. 227 IV llsTDEX

B I Big Bonanza Mine, Ariz. 13 Bonded Warehouses, Storing Explo¬ Butler Milling Co.277 Big Creek Dist., Idaho. 566 sives.... 412 Buxton Mg. Co.11, 255 Babcock & Wilcox Co.636 ! Diggers’ Mine, N. C.472 Bonemeal, Phosphoric Acid of...... Byrne, Austin P., Treatise on High¬ Bacbmann’s Process of ImpreKnatinK ! Big Missouri Mg, Co. 472 Bonillas, Ignacio —...;. 1 J' way Construction. 459 Liquids with Gases. '227 i Bildt’s Lining lor Bessemer Convert* Bonner Gold Mines, Georgia. M2 Bucket Elevator, Cavanaugh’s Pat¬ Bacis Gold and Silver Mg. Co_3:28, 59i , ors. 371 Booth’s Hydraulic Dredge. 107 ent. 323 Bacon, D. H., Filling at Minnesota | Billing^s' Wire Cutter and Pipe- Booth’s Stone and Ore Ciushing Ma- Bucket Latch Opener, Dole’s Patent.. 419 Iron Mine. 9 wrench... 81 ... Buck Mountain Anthracite Coal Bacorn’s Electric Signal for Mine Bi-metallic Extension Mine, Mont., 87,110, Borax, History of, in the U. S.*...... 217 Vein. 64 Shaft.i 83 j 374, 399, 538, 611 Boring Apparatus, Lentz s Patent.... 639 Buddie, Capt. J. H. .564 Badger Mine, Idaho. < 63 Bi-metallic League, the American_ 2 Boss, M. P., l.ocal Conditions in Min- Buddie, Double Hand, at Pribram*... 7 Badger Mine, Utah. 376 Bi-metallic Mine, Utah.305 .. ID Buchanan, C. G., Sturtevant Mill. 26- Badt, F. B;, Copper Keflning.1'26 Bi-metallic Smelting Co.159, !^, 373 Boss Tweed Mg. Co.. • 3'^ Bucherer, A. H., Zinc Precipitation . 315' Baker, I)., Rock Drill Used on Blast Bi-metallism, A Suggestion.437 Boston Coal Market.Weekly Buckeye Mine, Mont. 135. Furnace. 368 Bingham District. Utah.136, 352 Boston & Colo. Smelling Co. . . ^3 Buena Vista Coal Mine, Pa. 235. Baker Hill Iron Mine, Ala.158, 415 Birmingham Rolling Mill Co.220 Boston Mine, Colo.158, ^5 Buena Vista District, Colo.252 Baker Lake Dist., Washington.3*28 Birrueger, M. 12 Boston Mine, Mich. .... 303 Buena Vista Mg. Co.367. 413! Baker, Livingston L. 61*2 Bi-sulphate of t^a. Process of Treat¬ Boston Mining Stock Market .. .Weekly Buffalo Coal Market.Weekly Baker, Prof, Ira O. Construction and ing Barbier’s Patent. 419 Boston & Montana Cons. Mg. Co., 15, Buffalo District, Mont. Iffl; Use qf Surveying Instruments.531 Bitumen in France.271 63, 89. 110, 135, 160, ‘254, 280, 351, 447, Buffalo Furnace Co. 229: Bald Butte Mining Co. 11 Bituminous and Anthracite Coal, 490, 495, 564 Buffalo Harbor Improvements. 644i Baldwin Furnace. 11 Standard of. 420 Boston & Montana Cons. Mg. Co.’s Buffalo Iron Market.Weekly- Bald Mountain Cons, Mining Co.,.36, 616 Bituminous Coal Combination, 476,572,614 Wks.... .307 Buffalo Mine, Idaho. 131i Bald Mountain Fs. Mine, Cal. 109, 230, 373 Bituminous Coal, Drawback on. 157 Bostwick, Jabez. 180 Buffalo Mines, Mich. 447, Baldwin’s Convertor.419 Bituminous Coal Assay Furnace*- 215 Bostwick, Thomas A. 180 Building Stone on Tublic Lauds. 299' Ballands's Experiuients on the Solu- I Bituminous Coal Market.Weekly Bottome’s Ami-Friction Alloys. 371 Bullion Beck Mine, Tiutic, Utah, bility of Aluminum. 155 j Bituminous Coal Pool.611 Bouglies, G.de... Treatment Charges on Ores.514 Ballara-Smuggler Mg. Co.516 Bituminous Coal Prices..381 Boulder District, Colo., 613 Bullion Beck Mg. Co. 41, 421, .520i Ball's Magnetic Separator . 59 Bituminous Coal Kates. 452 Boulder District, Mont.39,110, 254, 49:) Bull Domingo Mine, Colo.11, 565< Ball's Prospecting Drill. 59 Bituminous Coal, Scarcity of.525 Boulder Mine, Idaho.230, t 53 Bullion Amalgam, Process of Treat¬ Baltimore & Ha-iisburg Railroad.... 235 Bituminous Rock, Apparatus for Re¬ Bowers’ Ore Concentrator.179 ing Moebius' Patent.179) Baltimore Malleable Iron & Steel ducing, Ford’s Patent. 107 Bowers, W. H. H. M Bullet Mfg. Co., Diamond Drills*. 153; Casting Co. 63 I Bituminous Rock-reducing Machines, Bowie. Augustus..-■ 39b Bullion, Missing, from the Comstock.. 169> Baltimore & Ohio Exhioit at Chicago. 12 Hall & Wood’s Patent.419 Boxall, G. E., Barrier Range Silver Bullion Mine, S. Dak. 88,376, 563; Baltimore Stock Market.eekly Bivins. B. F.120 Fields .. .340 Bullion Reports, S. Africa. 481 Banco de Plata Mines. Mexico. 17 Biwabik Iron Mg. Co.87, 251 Brachelli, Hugo Franz.318 Bullion Stolen from Consolidated Cali¬ BangkoK-Cora-Bell Mining Co. 66 Black Copper and Blister Copper.171 Bradford Iron W orks. 84 fornia &Tirginia Mines. 289i Bangor Mine, Cal. 169 Black Coulee Coal Field, Mont. 134 Bradigan, John J. ^ Bullionville Mg. & Reduction 00.3*27, 6.38; Banner Mine, Cal.373 Black Diamond Coal Co.568 Bradley’s Truss for Mining Machines 635 Bullman, C., Reciprocity and S. Am. Bannister Mining Co. 11 Black Eagle Coal Co. '251 Bradley, Thos. A._ . 36 Trade. 220) Barber, K C. A., Gas-fired Copper Black Eagle Falls Dam, Great Falls, Braeunlich, Mrs. Sophia. 318 Bull Mountain District, Colo.349, 637, Furnaces. . 339 Mont*. 313 Brain’sConduit for ElectricRailroads* 293 Bulwer Consolidated Mg. Co., 11. 37. Barbier’s Process of Treating Bi-sul- Black Flag Mine. I3 Brand, A...... 396 62. 109, 133, 158, 181, 205, 277, 280. 302, pbate of Soda. 419 Black HUls Mg, & Smelting Co.520 Brass Manufacturers, Conn., Consoli¬ 325, 349, 373, 397, 401, 442, 516 542, 5891 Barker Mg. & Milling Co. 593 Black Hills Tin, Metal and Develop¬ dation. 348 Burton & Angell Electric Metal Barlow Mine, Georgia. 230 ment Co . 208 Bratnober, Henry. 612 Heating Apparatus.63% Barnum Tunnel Gold Mg. Co. .516, 565, 637 Black Jack District, Wyoming. 88 Brayson, John M. 252 Barrier Range Silver Fields, Austr.340, 625 Biack Jack Mine, Idaho.86,109 Breakage of Winding Ropes in Mines 131 Barringer, D. M. 588 i Black Lead Crucibles, Care of. 154 Breckenridge, Colo . Ore Shipments.. IM Barrows, A. W. 612 i Blackman’s Apparatus for Recover¬ Breckenritige District, Colo.38, '253 Cabinet Anticlinal, Mont., Fissure Barus, Carl . 180 ' ing Alkali. 83 Breece Mg. Co. 330 ■Veins in. 605 Basic Bessemer Steel Plant, Potts- Blackman’s Electrolytic Process. 119 Brewer, Dr. F. B . 132 Cadmium and Tin, Separation of.246 town. Pa*.438,464, 488 Blackmore’s Process of Reducing Brewer, W M., Woodstock Iron Co.. 483 Oababa, Ala, Coke Ovens. 55 Basic Slag as a Fertilizer. 419 Briar Hill Mine. Mich. 326 Caledonia Mg Co. 352 Basic Zinc Nitrate . 58 Black Pine Combination Mg. Co..'279, 590 Brick Cutting Mach , Snell’s Patent.. 11 Calhoun & Bean’s Cbloridizing Muffle Basse & Selve’s Method of Separating Black Print Paper. ^o, 120 Brick Kiln, Haines’ Patent. 131 Furnace.347 Cobalt and Nickel. 78 Blacktail District, S. Dak. 616 Brick Kiln, Conley & Wolfe Patent... It Calhoun Mining and Milling Co. 66 Bassett's Electric Locomotive.347 Black Wonder Gold and Silver Min¬ Brick Kiln, Penfleld’s Patent.179 Calhoun,‘Tyler.396 ‘Bass Furnance Co.1(^, .301 ing Co.'26, 206, 265 Brick Machines, Berkman’s Patent.. o9 California, Exportations and Re-im¬ Bassick Mg. Co.589, 613 Blaine Tunnel, Idaho.11, 38, 159, 326 Brick Pavement, Cost of Laying.556 portations of Quicksilver.337 Batoi.ilas Mg. Co.305, 353 Blair Mg. Co. 305 Bricks, Hard, Method of Making.603 (California Gold Belt Surveys.109 Battery, Use of Cyanide .Solution in.. 4.59 Blake Asphalt Co. 88 Bridge, New, Thames, London. 155 California Gold Mining.505 Battleships, Argentine Republic. 539 Blake Crushers. Granulation of Ores.. 99 Bridge Over Pecos River. Texas.612 California Gulch, Colo. 205 Baudelier, A. F.132 Blake, F.H., Crushing Before Stamps. 435 Bridge. Proposed, Over Neva, Russia. 129 California Hydraulic Mining..Ml Bauxite in Alabama.51i, 584 Blake, James H. 180 Bridges, Electric Lock for. 61 California Mine, Mont. 10, Bauxite Mines, Cave Springs, Ga.565 Blake, W. P., Dolcoath Tin Mines.... 414 Bridges, New, San Antonio, Texas... 276 California Miners’ Convention.516; Bauxite Mines, Floyd Co., Ga.416 Blanch Coal Mine, West Va.521 Bridges, Proposed, New York and California School Lands, Mineral En¬ Bay state Furnace, Alabama. 468 Bland Mining and Tunnel Co.39, 134 Brooklyn. ..415 try. 443; Bay State Mg. Co. 493 Blast Furnace at Ensley, Ala. 388 Bridgevan, L H.. 3.'4 Callao Mines, Venezuela.172, 3‘29i Bear Gulch, .S. Dak., Tin Reduction Blast Furnace Charges, Slide Rule Bridge. Winona, Minn. 36 Calmalli Golu Mine, Lower California, 138- Wks.. 16 for Calculating*. 487 Bright Star Mine, Cal.565, 589 Calumet & Hecia Mining Co., 11,14. Bearings, Carboid.584 Blast Furnace Gases. Recovery of Bfistol Mine, S, Dak.616 38, 63,86, 114,138,159, I8'2, 206. 227, 253, Bear Lake Dish, Idaho. 371 Ammonia from..346 Bristol, Quebec, Iron Mines. 256 278, 346, 374, 398, 444, 446, 546,566, 611 Bear River, Ark., Chlorination Wks. 277 Blast Furnace, lies’Patent....^1 Bristol Rolling Mill Co. 396 Calvinistic Geology. 26 Bears’ Xest Mine, Alaska .302 Blast Furnace, Lead, Charge for.2‘25 Bristol, Tenn.. Iron Furnace.276 Cambria & Clearfield Railroad.235 Beaver Mine. Idaho. 63 Blast Furnace, Owning lapping British Columbia Coal Production .. 137 Cambria Iron Mg. Co. 398 Beaver Mine. S. Dak.352 Hole by Rock Drill..368 British Columbia Gold Discoveries... 1T2 Camden Iron Co. 110 Beckett Foundry & Machine Co.396 Blast Furnace, Peat. 606 British Columbia Gold Shipments.... 64U Camp Kerwin District, Wyoming.... 233 Behring Sea, Active Volcano.343 Blast Furnace Temperature, Auto- British Columbia Hydraulic Mg. 627 Canada Del Oro Mg. Co. 493 Beilby’s Process for Making Cyanide. 419 graphically Recording.. 341 British Columbia Smelting Wks.256 Canada, English Coal for. 66 Belcher Mg. Co.. 10. 61, 87, 327, 351, Blasting Powder, Auchman’s Patent. 347 British Guiana Gold Mines.449 Canada, Imports. 133 399 471, 519, 543, 587, 591. 638, 639 Blasting Process in Stone Quarrying. 248 British Guiana Gold Shipments.. .112, 568 Canada, Mineral Exhibits at Chicago, 12 Belden Mica Mg. Co., 11. •2'27.316,11'2, 538 Blasting Rock. 491 British Iron Trade, Decline of. 1 Canada, Asbestos Industry. 273 Belgian Mines, Labor Hours. '/93 Blasting Slone, Getbens’ Patent.107 Britton’s Process of Scaling Sheet Canada, Iron Fields, New. 561, 6.7 Bel^um, Chinese Labor, in .512 Bleaching Powder, Brunner-Mond Metal... 131 Canada Mg. & Coal Co.521 Belgium, Cnal Mine Explosion in. 283 Process..'. 177 Britton, N. L., Bolivia Fossils. 10 ('anada. Petroleum Industry.1‘27 Belington Coal Si Coke Co.276, 352 BleWitt, Patrick. 36 Brockman Mine, New Mexico. 400, 472 Canada, Statistics.204 Beliaire, O., Nail Works..'.612 Blister Copper and Black Copper. .. 171 Broken Hill Mines, Austi alia..161, 328, 448 Canada Western Central Railroad ... 448 Bell Buoy Mine, Mo.279 Block. Hoisting, Moore’s Differential* 178 Broken Hill Proprietary Co.249, 328 Canadian i ‘opper Co.616 Bellefonte Furnace, Pa. 36 Blossburg Coal Mine, Xew Mexico . 520 Brooklyn Electric Railroad Co.229 Canadian Mails. 444 Belle Isle Mining Co., 40, €3. 183, 231, Blount springs, Ala., Limestone Brooklyn Elevated Railroad. 12 Canadian Nickel, Royalty on. 244 3-27, 351, 37.5, 123, 471 Quarries*.413 Brooklyn Mining Co.182 Canadian Soc. of Civil Engineers..420, 516 Bell, licwis & Yates Coal Co.208 Blower, Centrifugal, Ruble’s Patent.. 5OT Brook Side Coal Mine, Pa.64. 232 (lanal Convention, New York.429 Bell Mine, Mont.399 Blowers for Conveying Culm. 489 Brotberton Iron Mg. Co. 11, 614 Canal, Manchester Ship.176 Bell Mine, Wash.472 Blow Pipe Analysis. 339 Broughton, F. D. S...492 Canal, Nicaragua.371 Bell Telephone Patents.397 Blue Bell Mine, British Columbia.... 256 Brown’s Coal Mining Machine*.275 Candelaria de Pinos Mine, Mex., 377, Bell, Thomas. 396 Bluebird Mg. Co.417, 495 Biown’s Segmental Wire Gun. 368 407 498' Belmont Cons. Gold Mg. Co., 181, 230, Blue Dye, Bohn’s PatenL. 419 Brown’s Grade Indicator*. 443 Candelaria Mg. Co.137, 353, 449,’545. 191. 517 Blue & Gold Mg. Co.277 Brownson, C. W. 324 Cane Springs Mg. Co. 448, Belmont Magnetic Iron Ore. 481 Blue Iron Mining Co.134, 279, 590 Bruce, C. 12 Cannonsburg Iron and Steel Co.4%- Belmont Mine, Mont.375 Boal & Jackson, Iiembi Gold Placers. 483 Bruce, David. 301 Cafion Del .^ua Grant, New Mex.*496,585i Bells, Concentrating. 59 Boa Quartz Claim. Yuba Co., Cal. 13 Brunner, Joseph P.636 Cahon City & Cripple Creek. 277^ Belts, Plain or Corrugated, for Van- Boatwrights’ Apparatus for Elevating Brush Electric Co. 348 Carboid Bearing.5M ners. 961 and Conveying Water. 179 Brunswick Consolidated Gold Mining Carbonate District, S. Dak. 255> Ben Hutler Mine. Col.37. 62 Bodie Cons. Mjg. Co.13, 37, 302, 397, 637 Co.401, 420, 445, 469, 516 Carbonate Hill Mg. (3o. 649t Bendigo Mines, Australia.121,197 Bodie Mining District, California..62, 373 Bryant, Henry G . 12 Carbon Determination in Iron and Benedict, W. de L.60, 228 Bodwell Granite Co. 108 Bunco, Walter H. 372 Steel. 83 Bended ict. W. de L, Sbatt Furnaces Bogart, John. 36 Blinker Hill Gold Mg. Co.3'25, 588 Carbon Monoxide, Action Upon Iron, 156 for Tin Ores. 3 Boggs, Edward M. 324 Bunker Hill & Sullivan Mining Co., Carburetted Hydrogen, Apparatus for Bennett, James J. 396 Bogoslowsk Copper Mines, Russia_640 38, 86, 303, 374 Making, Talmag^s Patent.419 Bennett-Stevenson Mine, X. Mex_ 181 Bohemian Mining & Milling Plant* 5 Burke, John M. 252 Carburetting Air, Frost’s Patent Proc¬ Benson Sm. & Mg. Co. vs Alta Mg. ! Bohms’ Chlorination and Cyanide Burkman’s Brick Machine. 59 ess.413 Co. . 585 ! Plant. 633 Burmah Jade Quarries. 328 Carbutt, Edward H. 228 Benton Con. Mg. Co.133. 135 j Bohn's Blue Dye. 419 Burmah Ruby Mines. 112 Carcoar Cobalt Co., Australia.448 Berdelia Mg. Co. 62 Boiler Efficiency. 489 Burmah Tin Deposits. 449 Car, Freight, The Largest.397 Berlin International Exhibition. lO Boiler Feed Water, Purifying.634 Burning Nitrogen. 83 Car Heating Ck>., Consolidated. 12 Berlin Iron Bridge Co., 81, 201, 229, 301. Boiler, New Water Tube*.. 539 Burnside Colliery, Pottsville, Pa. 40 Car Heating by Steam*.319 321, 396. 492, 636 Boiler Plates, Electric Welding.442 Burr, Prof. Wm. H.228 Caribbean Manganese Ck>.640 Bernalillo County, X. Mex. 136 Boilers. Pitriug in. 2-29 Barton, Col. Jules. 612 Caribou Dist., Idaho.349 Beryls in Alabama.439 Boiler, Sterling Water Tube*. 611 bush Copper Mining Co. . 41 Carizzo Mountains, New Mexico, Min¬ Beryls in Xew Hampshire. 508 Boileri*. Vertical Copper't ubes for_ 1.57 Bushwacker Mine, Colo.470,565 eral Deposits. 97 Bessemer Converts, Lining for, Bildt’s Boiler Tubes. Wrought Iron vs. Steel 57 Business and Labor. 169 Carlisle Mine, New Mexico.410 Patent. 371 Boise County Mg. Co.319, 542 Butte, Anaconda & Pacific R. R.304 Carmen Island Salt Mg Co. 521 Bessemer Iron Mine, Va.. 400 Boise Iron & Reduction Works, Idaho 303 Butte & Boston Mg. Co., 42. 63, 111, Carmi Mine, Colo. 637 Bef-semer Nickel Matte. . 83 Bolages. Marquis De. 306 183, 207. 254, 28i>, 304, 326, 351, 519, 638 Car Mover, Q & C*.587 Bessemer Uteel Production, First half Bolivar Coal & Coke Co. 352 Butte City, Mont*.291 Carnahan, A. B., Tin Plate.610 of 1892. 178 Bolivia, Fossil Plants from Potosi_ 10 Butte County, Cal., Mines. 8-> Carnegie Mill Strike.204 Beat ic. Belcher Mg. Co.18, 87 Bolivian Tin Exports .233 Butte & Deer Lodge Mg. Co. 280 Carne^e Steel Co., 13, 60, 276, 325, 492, Beeler, Louis J. 108 Bolt Cutter, Automatic*.49] Butte District, Mont. 231 Old, 537, 541 Best Friend Mg. Co. 11 Bolte’s Automatic Timekeeper*.419 Buttels’ Process of Making Ultra- Carp Lake Copper Mine, Mich., 398, Best’s Gas Engine Motor for Cars.... 419 Bonanza, A Profitless. 410 marine Blue .419 470, 666 Bethlehem Iron Co.12,^, S% Bonanza Mine, Ariz. 3^ Butterfielu'1 unnel, Utah. 41 Carpenter, Col C. W. . 636 Bette Machine Co.612 Bonanza Mine. Washington... 112,138, 352 Butler’s, C. H., Cyanide Process in Carpenter, Prof. R. C., Text Book gf Birrer’s Metallurgical Furnace.317 Bondholder Mine, Mont. 110 S. Africa. 341, 365, 391, 416 Experimental Engineering .243 IlSTDEX

Carpenter's Rheostat. 2'27 Chicago, Natural Gas. 230 , Coal Market, Chicago.Weekly Comet Mine, Mont . 251 Carpenter. J. 276 Chicago Rnilroad Coal Contracts.357 ! Coal Measures, Missouri. 363 Commercial Electric Co. 492 Carriage Building, Practical . 98 Chicago Refining and Oil Co.6% I Coal Mine Assessments, Schuylkill Commercial Information About the Carrolfs Apparatus for Melting and Chicago Water'Tunnel. 13 I County, Pa.136 American Republics. 98 Casting Metals. 131 Childs, J.S.•.. 12 Coal Mine Explosions.233 Commercial Mines, Utah . 88 Cars. Freight. English and American. 214 Childs, Ctis H . 612 Coal Mine Explosions. Wales.209, 377 Commercial Mg. Co.493 Carson Mint, Inspection.1, 40 Chilian Custom House Regulations... 324 Coal Miners’ Model Village. 3^ CoDimonwealtb Cons. Mg. Co. 404 Carson River Mg. & Drcdg. Co., 15,351, 361 Chilian Imports of Railroad Material. 228 i Coal Miners' Strike, Missouri. . 3M Commonwealth lion Co., 86, 206, 279, Carson’s Ore Separator and Concen¬ Chimneys, S! eel.539 : Coal Miners’ Strike. West Va.41, 90 326, 614 trator .563 China, Exports to...: 324 i Coal Miners’ Strike, New South Commonwealth Mg. Co., 180, 183, 207, Car Starter. French*. 487 China, Foreign Mining in. 76 j Wales.•. 161 231, 254, 351, 399. 423, 471 Carson Tunnel Co. 85 China, Gold Mining in*.6.'9 Coal Miners’ Wages . 356 Compressed Air and Electricity in Carter Ore Separator & Mg. Co.318 China, Mining in . 97 ! Coal Miners’ Wages, England. 497 Mining, Relative Efficiency.418, 506 Catterville Lead Mg. Dist., Mo.279 China, Railroad Building.176 . Coal Miners’ Wages, Illinois..374, 446, 494 Compression Process for Formation of Cartwright, James . 318 China, Sewing Machines for.324 Coal Miners’ Wages, Penna. 16 Alloys.505 Car Wheels, Ch'll for Casting, Treat’s China, is estinghouse Brake in. 36 I Coal Mines, Alabama.537 Compromise Mine, Mont. 160 Patent.203 Chinese Labor in Belgium...512 I Coal Mines, Explosives for. 155 Comstock Bullion Lost. 169 Casa Grande Gold & Silver .Vlg. Co... 493 Chinquepin Gold Mg. Co. 352 I Coal Mines, Foreclosure . .59 Comstock, Early Mining Operations.. 152 Cascade Dist., Mont.471 Chisolm’s Phosphate Rock Dryer.... 131 ; Coal Mines, India.233 Comstock Lode Improvements.232 Cascade Mines. Washington . 88 Chlorides and Bromides, Detection of, Coal Mines, Nebraska.304 Comstock Lode Litigation. 505 Case, Whitney A. 60 in Presence of Iodides. 81 Coal Mines, Straits of Magellan.257 Comstock Lode Monopolies. . 217 Cash Mine, Alaska .492 Chloridizing MufHe Furnace, Calhoun Coal Mines, Sydney, Cape Breton.221 Comstock Lode, Nev., Bullion Out¬ Casper Mountain Dist., Wyoming .448 & Bean’s Patent.347 Coal Mine Statistics, France. 435 put . Weekly Castillo, Antonio Del . 108 Chlorination of Gold. 10 Coal Mining, Cost of. 241 Comstock Lode, New Work on. 208 Cast Iron, Malleable. 56 Chlorination Plant, Bohm’s*.633 Coal Mining, Deep, In Europe. 152 Comstock Mill & Mg. Co. 289, 6^, 639 Casting and Working Metal, Appar¬ Chlorination Process. Pollok’s. 113 Coal Mining, Electricity in*.l.'K) Comstock Mill Ring. 1, 3,148 atus fjr. May’s Patent . 227 Chodzko’s Roi'k Drill. 347 Coal Mining Machine, Brown’s*.275 Comstock Mine, Colo. .37 Castle Creek Gold Mg. Co ..277 Cbollar Mg. Co .232 Coal Mining, Nova Scotia.161, 419 Comstock Mine, New Mexico. 61 Castle Noble Mg. Co. 399 Christy, Prof. S. B. 108 Coal Mining, Russia. 344 Comstock Mine, Rats in .300 Ca-tle Railroad, Montana. 110 Chrome Iron in New Zealand. 393 Coal, Pocahontas, and Census Report 268 Comstock Mine Stockholders, Pro Catalpa Crescent Mg. Co.181,303 Chrome Ste'l. 4i5 Coal Prices at Chicago, Advance in_ 19 posed Union. 3 Cataract Construction Co.492 Cnrome Steel Projectiles.633 Coal Production, British Columbia... 137 Comstock and Montana Mines. Rela¬ Catasauqua Mfg. Co . 12 Chrome Steel Shoes and Dies .435 Coal Production, France.370 tive Cost of Working . 410 Catasauqua Rolling Mill...318 Chrome Steel Spring and Tires.346 Coal Production, South. .54 Comstock, Prospecting Enterprise on. 463 Catawba Gold Mine, N. Carolina.514 Chromium, Electrolytic Deposition.. 56 Coal Regions of America. 26 Comstock Pumping Ass’n.591, 615, 639 CaucaGold Mines, Colombia.377 Chrysolite Silver Mg. Co.401, 421 Coal Resources of Peru . 59 Comstock Silver Ore, Early Attempts Cauricedale Metal.299 Chuck, T. K., Tuscarora Mines, 170. Coal, Russia.541 at Working. 80 Caustic Soda and Bleach, Prepara¬ 2^ 506 Coal, Scarcity in Mexico. 425 Comstock Tunnel Co.375, 412 tion by Electrolysis of Salt.601 Church. Prof. John A .137.’396 Coal Screen, Griffith’s Patent.227 Concentrating Plant for Tin Ore at Cave Creek Mines, Ariz.588 Church, W. S., Scorifleature Assays.. 291 Coal Separator, Long’s Patent.635 Harney Peak*. 102 Cavanaugh’s Bucket Elevator.3'3 rhurcb, W. S., Molecular Surface ... 195 Coal Shipments by Lake.405, 477 Concentrating Works, Nassau, Ger¬ Cave Springs Mines, Georgia.— 565 Cincinnati Engineers’ Club . 36, 204. 636 Coal Shipments by the Ohio River.... 91 many*. 474 Cayadut Electric Railroad.229 Cincinnati Iron Mining Co_39, 207, 254 Coal Shipments, Penna. R. R.259 Concentration of Sulphuric Acid in Cazeneuve, Felix G. 348 Cinder Dumping in Allegheny River Coal Stock Quotations.Weekly Glass Vessels*. 489 Cedros Mine, Mexico . 425 at Pittsburg. 468 Coal Storage at Amboy. 114 Concepcion Mine, Mexico. 401 Cement, Litharge-Glyccflne . 56 Cinnabar King Mining Co. . ... 158 Coal Conveyor, Hulett’s Patent.587 Condensatioa in Steam Cylinders.173 Cement Manufacture, Enricht’s Cinnabar Mining Co.206 Coal Tar Products, Duty on. 132 Confidence & Challenge Cons. Mg. Patent.515 Citizens’ Coal and Coke Co. 252 Coal Trade of India. 341 Co.135, 232, 471, 496. 591 Cement Pipe, Machine for Making, City Mines, Colo. 85 Coal Trades, Inter-Provincial.128 Congdon Brake-shoe Co.541 Oehrle’s Patent. 107 Claire Iron Mg. Co. 398 Coal Underculters*.249 Congress, National Mining. 12 Cement, Portland, Action of Sea Claire Iron Co. 182, 326 Coal Washer, Stutz’s Patent. 59 (tonklintt s Magnetic Separator.203 Water on. 77 Clarence, Whitman & Co. 588 Coal Washing Machine, Gallagher & Conley & Wolfe’s Brick Kiln.. 11 Cement, Testing.628 Clark, Benj. G. 180 Lang’s Patent. 635 Connellsville Coke Shipments.... Weekly Census Cost of Mining Pocahontas Clark, Hugh C.;. 540 Coal Washing Plant, New Boston, Pa. 255 Connelly. Gas Motor.157 Coal.268, 339 Clark, P.301 Coal Washing, Plant at Zollern*. 4 Conner & Eddy’s Amalgama or. 59 Census, Mg., Scope and Personnel of* 532 Claussen, Henry. 12 Coal Working Machine, Doolden & Cons. Cal. & Va. Mg. Co., 40, 64. OT, Census Report on Telephone Co.’s ... 12 Clay, Lewis. 12 Atkinson’s Patent.635 183. 208, 232. 255, 280, 289, 351, 375, 399, Centennial-Eureka Mg. Co., 11,16,376, 593 Clay, New Wyoming. 51 Coarse Crushing for Low Grstde Ores. 313 410, 411, 423. 448. 496, 567.591. 603, 615, 639 Centennial Mg. Co., 61, 86, 134, 136,237, Clay, Process of Treating, Fiber’s Coast Lights, Testing New. 610 Consolidated Chlorination Co. 16 253, 278, 303, 371, 398, 518 Patent.467 Coates Mg. Dist., Utah.327 Consolidation Coal Co. II Center Grinder for Lathes*.515 Clayton Air Compressor Works. 276 Coating Metal Sheets, Hearthfield’s Cons. Imperial Mining Co.160, 233 Central Florida Phosphate Co. 38 Clayton, James*. 101 Patent Apparatus for . 59 Cons. N. Y. Mg. Co.183, 591, 615, 6:38 Central Mine, Mich. 566, 590 Clear Creek Dist., Colo.1.^, 230 Cobalt and Nickel Separation. 78 Construction, Use of Mild Steel in .. 487 Central of New Jersey, Lease to Clearfield Coal District, Penna_161, 208 Cobalt and Nickel, New Caledonia... 257 Consular Invoices, France. 228 Heading R.K. 19 Clearing-house, International Mone¬ Cobalt. Russia. 33 Consular Invoices of Imports. 132 Central Railroad of New Jersey.561 tary. 655,557 Cochran Iron Co. 182 Contact Breaker, Ullman’s Safety*... 178 Cerro-Colorado Mine, Mexico. 257 Cleaning Up Old Mills. 433 Cochran Iron Ore Co. 491 Contention Cons. Mining Co. 186 Cerro Mercado Iron Ore Deposits in Clennell, J. E., Cyanide Process in S. Cochran, Thos . .396 Contention Mine,Cal.227, 415 Mexico. 457 Africa .•;.311, 365. .391, 416 Coeur d’Alene Mg. Dist., Idaho.38, 86, 278 Continental Sliver Mg. Co. 522 Chabaud’s Furnace for Treating and Cleveland, Civil Eng. Club_84, 301, 540 Coeur d'Alene Silver Mg. Co..374, 518. 614 Contract I>aborers, New York.. 540 Reducing Ores. 563 Cleveland Cliffs Iron Co.14, 416, 495 Coeur d’Alene Strike_14, 63, 1 9, 1.34, Contracts and Labor.458, 482 Chains, Sheet Metal, Apparatus for Cleveland Iron Mg. Co.63, 326 159, 182, 350, 398, 494 Converter, Baldwin’s Patent.419 Making, Austin & Lewis’ Patent. 227 Cliff Mine, Idaho . 374 Coffin’s Electric Heating and Welding Conveyor for Coal, etc., Cox’s Patent. 170 Chalk Creek Coal Co.185 , 376 Climax Wrench and Pipe Vise*. .. 11 of Metals. 317 Con vers’ Process of Treating Frank- Challenge Cons. & Confidence Mg. Clinton Cons. Mg. Co ..420, 583, 589 Coinage, Gold and Silver, French.308 linite Ores.635 Co.423, 56?, a38 Clymer, E. F., Pig Iron Grading.368 Coinage, Mexico. 31 Cook City District, Mont. 135 Challenge Cons. Mg. Co .. 15, 160, .375 Coal Analysis. Return of Sulphur in,. 315 Coinage, U. S. Mint. 132 Cooke, J. H., Maltese Phosphates_20') Chama Gold Mines, New Mex...,. 1.36 Coal Basin, The Flat-Head, Mont. 67 Coins, Domestic.Weekly Cook. O. J.396 Chambers, R. C.510 Coal Bin Discharge, Counterbalance Coins, Foreign .M’eekly Cook’s Peak Dist, N, M .3^, 423, 639 Chambers & Smith’s Appliance for for, Erickson’s Patent. 467 Coins, New Austrian... 444 Cook’s Peak Mg. Co. ...11, 184. 423, 442, 538 Loading Coke. 107 Coal, Boring for. South of England... 155 Coins, Souvenir, for the World’s Fair, 149 Cooper, W. W.276 Champion Gold Mine, Montana. . 15 Coal Business, Nova Scotia.233 Coins, Values of Foreign.Weekly Coosa Mg. Co.544 Championdron Mining Co., 110,206,253, 303 Coal Combination and Mining Profits 241 Coke, New River, WestVa..444 Copiapo Mg. Co. 569 Champion Mine. Colo. 589 Coal Combination, Heading.258 Coke, Improvement in.458, 481 Coplay Iron Co. 636 Champion Mining Co.. 11, 161, 181, 227, Coal Consumption of Paris.585 Coke Loading Appliance, Chambers Copper Alloys, Process of Recovering 306. 346, 412, 538, 542, 513 Coal Contract. Pent a. and New Jer¬ & Smith’s Patent.107 Metals from, lies’ Patent.371 Chandler Iron Co.160, 183 sey Cent. R. R.352 Coke tfven, Hoffman Otto*. . . 493 Copper, Black and Blister. 171 Chandler & Taylor’s Saw Mill*.417 Coal. Cost of Mining,Pocahontas,Va. 339 Coke Oven, Thomas Patent* .612 Copper Bronze Wires for Telegraph.. Chandler & Taylor's Twin Engine* . 317 Coal Creek Minet, Tenn. 514 Coke Production, Great Increase.357 Lines. 145 Channeling Tool for Rocks, Gethen’s Coal Cutter, Reynolds’ Patent.227 Coke Production, Pocahontas, Va_ 249 Copper Coating for Iron.,.. 151 Patent. 107 Coal Cutter, Atzinson's Patent.227 Colbath, L. U.540 Copper, Co It of Producing.123 Chapin Iron Co., Mich., 38. 182. 206, Coal, Determination of Efilciency.... 298 Colby Iron Mine, Mich.3%, 566 Copper Crystallization in the Form of 279. 417, 518, 638 Coal, Determination of Sulphur in ... 320 Colchis Mg. Co.376 Azurite. 10 Cbarleton, A. G., Mining in the Pyre¬ Coal Discoveries in Iowa.278. 350 Coleman’s Apparatus for Corroding Copper, Effect on, of Arsenic and nees.321 Coal Discovery, Graham Island, Brit¬ Lead. 179 Antimony.177 Chartier, G. 444 ish Columbia.376 Coleraine Colliery, Hazelton, Pa. 88 Copper, Electrolytic, Antimony in ... 78 Chase & Gantt’s Process of Casting Coal Discoveries, Montana. 374 Cowles’ Process of Electro-depositing Copper, Electrolytic Refining of. 126 Armor Plates.457 Coal Discovery, Potter Co., Pa ... 2^ Alloys .539 Copper, Estimation of Sulphur in.466 Chase Magnetic Ore Separator*.8, 587 Coal Discovery, Provo Canyon, Nev.. 16 Colgat", W. H. 564 Copper from Anaconda Mine, to be Chat. Mg. Co . 13 Coal Drill, Rotary Electric* .202 Collier’s Telephone Receiver. 229 Refined in Baltimore. 25 Chartard, Thomas N.180 Coal Dust Explosions, German Meth¬ Coll'ery Explosion, English.592 Copper Furnace, The First Ga-'-firod.. 435 Cheeseman’s Chemical Reagent, in od of Preventing. . .. . 246 Collinga Coal Mine, Cal.637 Copper Lode at Snake Creek, Utah... 41 Making Allovs.443 Coal, Estimation of Sulphur in.271 Colombia, Mining in.52,171, 411. 6C2 Copper Market.Weekly. Chemical Analysis, Discrepancies in.. 605 Coal Exports to Cuba . 259 Colombia. Mining Laws of.219, 243 Copper .Market. Notes on.483. 506 Chemical Analysis, Introduction to... 579 Coal Field, Hay Creek, Wyo. 41 Colombia. Reciprocity Treaty with. .. 444 Copper Matte, Electrolytic Separation Chemical and Mineral Markets, Liv¬ Coal Fields, British Columbia.256 Colorado Cent. Mg. Co 11, 28\ 442, .579, 593 of Silyer. 99 erpool .Weekly Coal Fields, New, Great Britain.161 Colorado f’hief Mine, Utah. 281 Copper Mine, Michipicoten.125.216 220 Chemical & Mineral Markets, New Coal Fields, Vancouver.391 i Colorado Coal & Iron Co... 14, 159, 230. Copper Mines, Ashio, Japan. 187 York.Weekly Coal Fields of Washington. 136 I 426. 517 Copper and Nickel Pyrites, Process of Chemical Reagent in Making Alloys, Coal Fields, West Va..-..^32 I ColoradoFuel Co., 11,85.469,421,493,613,637 'Treating. Strap’s Patent. 347 Cbeeseman’s.413 Coal Fields, Wyoming.256 I Colorado Gold Mg. Co., Mexico. h5 Copper Ores, Basis of Duty on.409 Chemical Section, Engineers’ Society Coal, Idaho. 326 Colorado Iron Works.516 Copper Ores, Durango, Colo. .37 of Western Pennsylvania.348 Coal, Im orted, Drawbacks on _348 1 Colorado Lead Production..349 Copper Ores, Montana, Gas Smelting 291 chemical Society. American.. .12, 204, .540 Coal, India.328 I Colorado Midland Railroad.517 Copper Ore Shipmen'8, New Mexico. 208 Chemistry of the Cyanide Process.391, 416 Coal Jigger and Washer, Patent.2113 ! Colorado Mineral Exhibit at Chicago. 444 Copper Pipes, Tests of. 366 Chemistry of Gossan. 582 Coal Land Entries. 272 I Colorado Mineral Product.565 Copper Production, 1891. 75 Chemistry, Year Book of . 191 Coal Land Entry on Homestead. 443 Colorado Mineral Surveys. 13 Copper Production. Lake Superior... .38 Cherokee Co., Alabama .. . 180 Coal Land Leases, Lykens Valley, Pa. 139 ! Colorado Mg. & Smelting Co.422, 447 Copper Queen Consol. Mining Co_ 61 Cherokee Co., AIsl, Bauxite Mine. 302 Coal Land Sales in Westmoreiand ! Colorado River Canyon Railroad. 73 Copper Smelting, Gas Furnaces for. 339 Cherokee Co., Ala., Iron Ore .. .37. 180, 302 County, Pennsylvania. 16 Colorado River Dam. 36 Cooper Refining Furnace, Gas, the Cherokee. Kan. Ore Shipments.. .Weekly Coal Lands — Discovery, Statement Colorado River Mines. 516 First. 387 Cherokee Iron Co. 494 and Transfer. 11 Colorado, Right to Water in.490 Copper Refining, Process of, Farrell’s Cherokee Mines. California.637 Coal Lands on Homestead Entry.611 Colorado Smelter, Mont. 39 Patent . 467 Cherry Creek Dist., Cal. 542 Coal Lands, Schuylkill County, Pd., Colquechaca District, Bolivia. 112 Copper,Rapid Electrolytic Deposition Chesapeake & Ohio Canal. 115 Assessment. 424 Columbia College Observatory. 84 of .389 Chester, Edward. 84 Coal Land Syndicate. West Va_376, 397 Columbia College. Opening Session... 348 Copper Rock Mine. Colo. 421 Cheyenne Smelter, Wyo. 88, 521 Coal Lands—Timber Land Claims_393 Columbian Exposition, Electricity at. 36 Copper Trade, Understanding in. 74 Chicago Bridge and Iron Co . 36 Coal l^egislation. Nova Scotia . 121 Columbian Exposition, RoadExbibita. 50 Copper Tubes for Vertical Boilers.... 157 Chicago City Coal Contract. 115 Coal Loader, Ingalls’ Patent. 635 Coiumbu* Mg. Co. . 136 Copper Wire, Zinc-coated.204 Chicago Coal Market.Weekly Coal Loader Grierson's Patent.107 Colville Reservation, Wash. 136 Cqppet’s Method of Treating Minerals Chicago Economic Fuel Gas Co.414 Coal Market, Anthracite.Weekly Combination Mg. & Milling Co .160 Containing Nickel.419, 4^ 515 Chicago Iron Market.Weekly Coal Market, Bituminous.Weekly Combustion of Nitrogen in Oxygen... 66 Coptis Mining Co.. 40 Chicago Iron tVorks.318 Coal Market, Bosion.Weekly Comet & Cady Mines. Idaho.446 Corbin, H. H. 132 Chicago Mine, Wyoming.30.5 Coal Market. Buffalo.Weekly Comet Concentrator, l^ont. IM Coming Steel Co. .,...,_372 VI INDEX

('ordite, Manufacture of, in W’ann Darling, L. B., Separation of Silver Dump Car, Thacher. Electrolytic Deposition of Copper_ 389 Climates. from Copper .Matte. 93 Dumas’ Process for 'Treating Gold Electrolytic Manufacture of Lead Coming's Supp jrt for Ore Concentrat¬ Davidson, Prof. George. 108 Ores White. 248 ing Hells.. oM Davis & Elkins Coal Co . 3.52 Duncan’s Hydraulic Machinery. Elec rolyiic Manufacture of Metallic Coronado Mining Co. 85 Day. D. T.. 1 be Mineral Census.552 DunrterDcrg Mine. Nevada. Aiticles, Elmore’s Patent.419 Corpora'ions. Duty of Private. 59 Day’s Keren. 12 Dunhtim Nut Machine Co. Electrolytic Precipitation of Zinc Cone/. Mining Co. it Day’s Reversible G.as Engint*.271 Dunne’s Nitrogenous Fertilizer. from Solution.315 Cory Mining Itistricc, Washington. .. _ll Day, Dr. David T., and the Mining Dunn Iron Co . Electiolylic Process, Areas. 199 fJorunduni, Georgia.518 Census.. .'29 Hunscomb, J. G., Chrome Steel. Electrolytic I’rocess, Blackman’s Pat. 419 Costa Kiea. Heciprociiy Treaty w ith. 324 Dayton Coal & Iron Co. 468 Dupont Powder Works. Electrolytic Process for Ubtaiuing Coupon Books. 329 D-ayton Iron Mg. t o.206, 326 Duque«iic Mining i;o. I Antimony. 177 Courtia. Win. M. . l.<3 Dead Medicine Mine, Wash.. .2:12, :152, .515 Durand’-* Mine t;ar. ' Electrolyi ic Process for Separating Co'irtright Hydraulic .Machine Co.... 441 Dead wood, S. Dak.. Reduction Wks. 124 Durango, Colo., Copper Ores . Silver from Copper Matte. 99 Cowenhoven Tunnel. Colo. 325 Deadwoo.1 Stock Quotations .Weekly Durango, Mexico, Alines _137, 27)7, Electrolytic Befiniiig of Coprer. 126 ('owles'Annealing Furnace. 83 D adwood Belt Mines, S. Dak . 424 Dutch Guiana, Gold Mg. in. ' Electrolysis, .Separation of Metals by. 203 Coxe, Eckley B. 36 Dead wood 8: Delaware Smelter Duty on Copp -r Ores, Baibis f-yr. Electroplating Apparatus, Howard’s Coxe and .Salmon's Mechanism for 41. 88, 1.36, 161, -208. 232, 296, 400 Ilynamite, Dangers of. Patent.419 Drillings. . 347 Dead wood District, S. Dak.185, 568 Dynamite. Film- s from.- Eleciro-thermic Nickel Plating. 81 Cox. \V. J . 510 Deadwood TerrfV Mg. Co.. Dynamometers and Die Measurement Elenrino Gravel Mines, Cal.637 Cox's Conveyor. 179 11. 66, 153. 227, 258. 304, 316. 422 of Power. 122, Elevated Railroad in Liverpool.372 Cox's Formula for Ascertaining Loss Dean Mine.Colo. 4'1 Dynamo Machinery, Papers on. Elevator Chain. Traction VVheel for.* 563 of Head in Pipes by Friction. .5‘3li Death Valley Borax Mines*. 181, 217 Elgin Mine. S. Dak. 281 (’raig, Bidgvvay & Co .2.52. 415 lie Barril, .\lex. 60 , Elizabetli Mine, Mont. 3.50 Cramp Shiobuilding Yard. Floating Dc Beers Cons. .Mg. Co . .569 ' Elk Cit.v Gold Alines, Idaho.398 Crane at' . .533 Deep Level Mining in South Africa.. .5:11 i Eagle Hill CMlicy. 568 Elkins & llocklaiTs Gas Apparatus... 3-23 Cranev’s Electrolytic Apparatus, .Nor¬ Det r Horn Mine, Colo.:47:t ! Eagle Mine. Nevada. 207 Elk Horn Mining Co, 11. 87, 134.'254, ton & Hodgson..587 ■ eer Valley Dist., Utah.:305 I Eagle Mine. Utah. 3t)4 279. 3 4, 306, 346. 399, 619, 567. 638 Crane, Floating, Cramp’s Shipbuild¬ Dc Frees Mill, Tuscarora, Nev . 231 Eaiiies’ I’rocess of Separating Iron Elk & Lycoming Gas Fuel Co.:i96 ing Yards*..5615 lie K-ilh, Courtney .180,612 I from Ore. 419 ( El Leopoldo Gold& Silver Mg. Co ... 425 Crane Iron Co ... 321 Del Mar, Algernon. 192 ' Early Bird Pno-pliate Co.4.50 Ellengowen Colliery. 88 Crane. Overhead Traveling. Morgan’s De Lamar Mg Co , 11. 11, 86, 20. lOI, 206, ; Earthwork and Stadia'Tables, John- ' Ellwood Sieel Co .276 Patent. .59 251. S0:4. :498. 406, 494, 518, .566, 614,6:47 ; son’s. 2 Elmira Alining Co. :i8 Crawford Crushing and Amalgamat¬ He Laslimnit, V. B. .588 East (Chicago Iron & Steel Co.331 Eli" 'Trej Mining Co. 113 ing Mill.*‘82.99, 1!7. ia5 Delaware & Hudson Canal Co., j East New York Iron Mg. Co...39, 208, 416 Elmore's Apparatus for Electrolytic Crawford Gold Extractor.280 184, 352, 403, .592 I Easton Mine, Mont .— 110 I AlanuRiciure of Metallic Articles.. 419 Crawfo d Mine, Nova Scotia_ 32 Delaware Iron Works. 1.57 j East Pacific Iron Co. 183 i Elmore’s Alanufactiire ot Mnnurtls Creede District. Colo., 253. 277, 349, 470, Delaware, Lackawanna & West. R.R.. 40 ! East River Bridge Co.445 1 for Ell ftrolytic Deposition of'Tubes. 467 517, .590 Delaware Mine. Utah . 256 East Vulcan Iron Mines, Mich. 279 i Fiitcrprise Alining Co. 114 Creole Mine. I’tali. Hit Delaware Valley Coal Railroad. 139 Ebcrhard Tunnel. Nev.496 , El Oro Mg. Co..546 Crescent Mine, Plumas, Cal.373 Delav Mg. (.'o. 5;2 Echeverria, Guillermo.157 I El Paso Silver Convention. 579 Crescent Mg. Co.161, 328, 521, .592 Delhi Mg. Co. 491 i Edesville Dist., Wyo. 353 ■ Ely Mill, Nevada. 268 Crescent Steel Wks.372 Della .s. Cons. Mg. Co.85, 2:i0, 470 . Eddie, E. 'T.588 I Emeralds, Australia.328. 545 Cresson, Cleartield & New York Bail- Del Monte Mining Co.:431. 2.54 Edgar Boiler Co. 66 j Einevy Slone, Greek, Price cf. 484 road.615 Deming, Henry C. 444 ' Edgar Thomson 8teel Wks.1.57. 325 ; Emery Wheels. 529 Crested Butte Mine, Colo. .32 i Deining, New Mex., Smelling Works. 423 Edgar Union Mg. Co.330. M9, 542 [ Emigrant Gulch, Mont.207 < 'reston Mg. Co. 425 Deming & Southern R. R. 4 *0 ! Edge Curling Sheet Metal, Machine Emma Mine, Aspen, Colo. 109 Creswell, C. G.. Aluminum. 171 Denton, F. W. 276 I for, Gordon & Gilbert’s Patent. 3-23 I Kinma Alg. Co.i:i6. 18.5, 207, 305, 376, 52:1 Cre'-'ice Mg. & Milling Co. 399 Denver, Gen’l J. VV. 1.57 Edison Electric Light Patent ,84, 348, 588 Emma, ivevada. Mining Co. 183 Crew, Prof. Henry.2ot j Denver Milling Statistics. ... 109 j Edison Companies’ Association. 157 EinmensCons. .Mines, Colo. 159 Cridlcr, Thos. W. 432 Denver Milling Stock Exctiangc.217 I Eoison’s Method of BrieicingOres— 407 Emmens, S. H., Electrical Heating Cripple Creek District, Colo..205, 230, Denver Mint Iteport. 1.58 : Edison’s Method of Magnetic Ore and Smelting. .57 37.3. 421, 517. 542 ! Denver Steel Rolling Mill Co.. 331 I Separation. 437 ! Emmens, S. H., Faulting in Veins_ 27 Cripple Creek Mg. & Milling Co. 4t5 I Denver .Stock Exchange Journal. 612 1 Edison Separator Works, Upper Mil- Emmens, S. H., Nickel Analysis..510 Oiswell Gas Well. Indiana. 398 Denver Summit Mine, Alaska. 445 I fold, N. J. 161 Emmens, S. H., Gossan. 582 Crocker & Collyer's New Alloy.131 Derbec Blue Gravel Mg. Co. 401 j Ednics’Coal Undercutter*.219 ' Emmens, S. H., Nickel Minerals. 609 Crocker Iron Co. 6.36 Deseret .Vlg. Co .16, 64,112, 256. :405, 421 Edward’s Forty Mine, Mich. 206 Emmons Mg. Co.613 Cross. J. J. R. 84 Desilverizing Argciitiferons Lead, , Eflioiency of Coal, Deierminalion of.. 298 , Empire Alining Co. 41 Croton Dam, New. Tenders for.. 224 Roeseler’e Patent Process. 1.56 ' Eclipse .liline, t;al.445. 469 Employers and Workmen, Relations Croton Magnetic Iron Mines. 10 Deleciion of Gold in Solution.6o3 I Eile-ton. T., First Gas-flred Copper 1 ot.171, 195 Crown Mine. New Ze.aland .. . 27 Detection of Nickel in Presence of I Fiirn.ice. 387 I Encinas, Jose. 157 Crown Point Incline..591 Cobalt. .59 I Eg> pt Coal Co. 276 : Endlich. F. S ■. Manual of Qualitative Crown Point Mine. Mont. 183 Determination of Zinc in Ores. 178 ' Ehret, J. A. 12 ■ lilow-Pipc Anuli/sis.3.39 Crown Point Mg. Co—62.64, 87,232, Devoe, F. V\'. & Co. 83 I Eight Hours on Public Works. 132 Engine. ChaiiOler & Tavlor Twin*— 347 280, 303. 375, 399, 401, 423, 471. 493, 517, Dewey’s Process of Making Alumina. 443 { Elba Iron Mines. 328 ; Engine and Generator Coupled*.6u7 .519, 543. 567, 638 Dexter Gold and Silver Mg.Co. 207,227, 194 j Elber’s Process of Treating Clay.407 j Engine, Racine Automatic.323 Crovrs' Nest Mine, Nova Scotia.329 Diamond B. Mining and Milling Co... ,59.4 I El Callao Min js, Venezuela.305 Engine, The Robh-Armstrong*.251 Crucibles, Black Lead. Care of. 154 Diamond Discovery in N. S. Wales_ 497 El Carmen Mining Co., Mexico ... 6j, 473 Engine.s, High Speed, Shalting Stand 389 Crum Creek Iron & Steel Co. 84 Diamond Dr ll, Improved Electric*... 262 ' Elda Mg. & Alilling Co. 589 ! Engines, Peiroleum, History of. 151 Crushing and Amalgamating Mill, Diamond Drills. New*. 15:4 I Elder’s Apparatus for Boring Artesian ! Engineering Association of the South, Crawford.82*. E9, 47,195 Diamond Iron Mine. Minn .,350 I Wells . 419 ' 81. 108, 420 Crushing. Preliminary, Before Diamond, Kynne & Castle Mg. Co_ 11 1 Eldorado “ilver Mine, Wash. 232 i Engineers’ Epitome.339 Stamps. 435 Diamond, L-arge . 410 j Eldredge. Col. C. J .468 : Engineering, Experimental Text- Crysolite Silver Mg. Co ..470 Diamond Mine, Nevada. 183, 375 I Electrical Reduction of Refractory I Book of. 243 Crystal Mine. Mont. 134 Diamond Mines, S. Africa. 83, 377 Compounds, Wilson’s Patent.515 Engineers’ fees . 211 Crystal Quicksilver Mine. Cal. 158 Diamond Mining, Australia. 149 I Electrical Words, Terms and I’hrases 2 Engineering Literature, Current In- Cluba. Iron Ore.446, 51.5 Diamond Washer, Mechanical. 370 j Electric Coal Drill,*.202 I dex of. 98 Cuba. Tariff Charges. 540 Dicker! &; .Meyers Sulphur Co. 568 i Electric Currents of Very High Fre- i Engineering Schools, American. 145 CutTs Find Iron Mine. Mich.325 Dickens Custer Mine, Idaho..303 i quency. 608 ' Engineer, Submitting Disputes to.... 299 Cu m Conveying by Blowers. 489 Diebold-M osier-Damon Safe Co.492 Electric Diamond Drill, Improved*... 2a2 Engineers’'Tables and jMeinoranda... 459 Culmer-Jennings Mg. Co. .568 Diehl Motor and Fan *. 34 Electric Freight Line in Chicago. 132 Engineers’ Time and Expense Ac- Cumberland Iron & ~teel Shaft. Co... 276 Dikts, The Holland .394 Electric Healing and femelting. ,57 : count. 554 Cumberland Mine, U an. 232 Dilleiiberg's Air Compressor.227 Elecirij Installation, Sheridan Mine. I England, Southern, Boring for Coal 155 Cumberland Mining Co. 110 Dimension Stone, Quarrying.248 Tel'Uride. Colo*.. 79 : England, Stoiage Battery Traction in 214 Cumberland Oil Co.352 Discussion on the Sturtevant Mill.... 26 Electricity in Coal Alining*. 100 English and American Freight Cars.. 214 Cummins, A., Pittsburg Natural Gas Disreputable Companies and Promi¬ Electricity and Compressed Air. Com¬ i English Coal Exported to Canada_ 66 TTe d. 106 nent Names. 97 parative Efticiency.118, 516 English Colliery Explosion.592 Cunard Steamships, New.271 Dividends Paid by Mining Companies, ElPClricity and Magnetism. 579 English Guiana, Gold Mining. 3'28 Cunningham's Ingot Manipulator. 347 11, 131, 227. 322. 412. 538 Electricity. Quesiions and Answers.. 339 English Hematite Mine*. 398 Cupsill, G. M., Fans.;. 6.35 Dixie Copper Mg. Smelt. Co., 16. .568, 616 ; Electricity at the World’s F’air. 36 English Light Gold Coins, Recoinage. 231 Curlew Mines. Montana . 15 Dixie Dist., Idaho.566 ! Electric Lead & Zinc Co. .39 English Management of Foreign Curphey, Douglas . 564 Dock for Ore at Conneaut, O.*.6H7 I Electric • ight, Edi-on Patent..8l, 348, 588 Alines . 169 Current Trices.Weeklv Dodge Coal Storage Co. 115 I Electric Lighting Circuit, switch and Fnglish Mg. Investments in Mexico.. 3i3 Curry Iron Mg. Co.279, 398, 638 Dolcoath Tin Mine, Cornwall, Eng¬ English Vanner.512 Curtis, Thos. E. H . 167 land.289, 114 ! Eleciric Lighting Specilicilions.24:8 Enos Mg. Co . 2U8 Curtis Regulator Co. 458 Dole’s AutoinaticLa'ch for Buckets.. 419 ! Eleciric Lighting of the Railroad.412 ; Eniicht’s Process of Cement Manu- Custer Mine, Idaho. 326 Dolgonrovitch, Prof. Ivan. 132 i Electric L ght Meters in England .... 229 j taclure. 515 Cntten’s Method of Producing Potas¬ Doolden & Atkinson’s Coal Worker. 635 : Electric Light, Sw-an Patent . . 61 Eni icht’s Stone Manufacture. 515 sium Chlorate. 156 Donaldson Mine, Colo. ,565 I Electric L-jck for Drawbridge’. 61 Ensley Furnace, .ala.*. .54 Cyanide Extraction Proce-is for Gold Donetz Coal Field. Russia.344 I Electric Locomotives, Bassett’s Pat. 3i7 Ensley Furnace, Blowing in.383 a^d Silver Ores, 1, 3. 17, 27, 121, 146, Dora Coal Mines, Virginia.3 8 Electric Locomotive. English*. 221 Enterorise Aline. Idaho..3^ 153, 291, 316, 327, 339. 341, 361. 365. 381. Doris Mining Co. 2311 Electric Locomotive for Mines*. 269 Enterprise Mg, Co.. 11, 1C9. 227. ‘254. 330 416. 423. 440, 606 Dorsey. E. B., S. African Gold Mines. 75 E^leciric Manufacture of Phosphorus. 178 346. :897, 426. 442, 469. 538. 516 Cyanide Process in Arizona. 3 Douglass, E. N. 228 Electric Metal Healing Apparatus, ' Enterni’ise & Rico Aspen Mg. Suit. .. 634 Cyanide Process, Chemistry of .. 381, 41b Dowson’s Gas Producing Plant*. 173 Angell’s Patent.685 I KiiM-ekin, Henry J. T2 Cyanide Process, Experiments with. 6% Doyle’s Fuse Igniter. 179 Eleciric Mine Car, Sperry Patent. ... ,59 Entries iinri Patents on Mineral Lands 11 Cyanide Process. Hillside Mine. Ariz. 36:8 Dragon Mine. Utah. 161 O'lectnc Mining Locomotives* .321, 588 Equaiioner. Hart’s*. 371 Cyanide, Process for Making, Bilby's Draining Lake Angeline. 38 Electric Motors as Substitutes for Equator Mg. co. 13 Patent. 419 Draining the Zuyder Zee. 178 Sream ).oconiolives. 81 Equadnr. New Mining Law.640 Cyanide Process, Mercur Gold Mines* 440 Drake, Franklin N . 63ii Eiecinc Power Tiansmission. . 1.30 El ickson’s t:ounierbalance for Coal Cyanide Process in S. Africa, 17,311,365 Draper’s Well Drilling Machine.2i).3 hJectnc Pumping Plmt*.317 i Bin Discharge. 467 Cyanide Process, Tuscarora, Nev.. 327, 423 Drawbaugh’s Pneumatic 'Tool. 3’23 Electric Railroad Experiments. 201 Ernert's Process of Making Salicylate Cyanide Solution, Use of, in the Bat- Drawbacks on Exports.44 i Electric Railroad, High Speed, in Bel¬ of Phenyl . .51.5 tcry •...••••• .. ••..•••• 4o9 Drawbridge, Lifting.273 gium. 24) Esmeralda Mining Co.88, 208, 376 Cynon Tin Plate Works. .541 HredgingMachine,Souther’s Patent.. 11 Electric Railroads, Recent Progress 3.)9 Etna Mining Co . 18l Drifts to Catch Seepage Water .607 Electric Railroads, Underground Con¬ . Eugenol-BenzvT Ether. Process of Pre¬ Drill Chuck, Francis’ improved*. 33 duits for*.248, *293 paring, Ach’s P.i tent. 539 Drill and Column, Sensitive*..251 Electric RetiaiDg of Metal, Fletcher s ! Eureka Cons. Mg. Co., II, 183, 366, Drill Grinder, The laeal*. 56 Patent . 419 354. 401, 423, 6:88 Daggett. Elsworth. .540 Drilling Machinery, Coxe & Salmon’s Electric Signal for Mining Shaft, Ba- Eureka District, Nev. 87 D.ikota Land Grant, Mineral Exemp¬ Patent. 317 coviii Paicnt. 83 Eiireaa Hill & Bullion Beck Mg. Co . 568 tion . 11 Drill Press, Frasse’s Sensitive* . 35 Electrical Standards. 586 Eureka & Palisade R. R Shipments. Dalton Gold Mg. & Milling Co. 448 Drying Stove for Bricks, SeboeH’s Electric-SIorage Batterv, Patent. 318 Hi. 183, 280.519.567,591 Daly Mg. Co.. 11, 186, 209, 227. 306. 346. 431. Patent. 323 I Electric 'Teiiipering of Gun Springs... 127 Eureka & Palisade R. R. Co.615 442, 498, 538, 617 Dubhs’ Process for Manufacture of i Elecric Transmission at Lauifeii. 568 Enrich, E P. 588 Daly Mining Co., Rer-ort. 53 Asphaltuni.131 ; Electric'Transmission in the -vest*.. 79 Evening Star Con«. Mg. Co. 510 Daly West Mine, Utah. .41,161 Dubois, R. V.. Silver Question.241 Electiic Welding of Boilerplates... 412 ; Eva Mining & Milling Co.478 Dam. Black Eagle Falls, Mont*. 313 Dubier, K. T., OuesCionsand Answers Electric Welding and Heating Met¬ I Ever tt. Dr. Willi-* E. .204 Dam, Colorado River. .36 About Electrvity . 3.39 als, Coffin’s Patent. 347 ' Everett District, Wash. 136 Dam, New Croton, Tenders for. 2'4 Dudley. C. B., Discrepancies in Chem¬ Electro-deposition of Metal, Fletch¬ Excavating and Shoveling Machine, Dana’s Ore Washer and Concentrator 2 -7 ical Processej.605 er’s Patent Process. 443 Henneberry’s Patent. 11 Danell, I). J . 81 Diitferin Mining <'o. 209 Electrolviic it Production of Potas- Excelsior Furnace, Mich.231 Dangertield, J. H. 3J1 Duluth Iron Ore Co .399 siuin Chlorate. Cutten’s Patent. 156 Exc lsior Phosphate Co.... .542 Daphne Mine, Mont. 39 j Dumble, E. T., Grabamite in Texas.. 368 ElectrolyRc Apparatus, Craney’s Pat. 587 Exchequer Mg. Co.423 Dardanelles Drift Gravel Mg. Co.583 Dump Car, lies’ Patent.347, 371 Electrolytic Deposition of Chromium. 56 Explosive; Uerculito. 35 INDEX VII

Explosives in Bonded Warehouses ... 412 Fritz, John, Testimonial to.313 Glass Producer, Koneman’s Patent... 413 Grac«*‘8 Machine for Catting Right Explosives for Coal Mines. 155 Frisco Mg. Co. 350 Glass Tank F'urnace, Made’s Patent 561 Angle Siiuciural Shares. S3 Explosives, Intensity of Blow Re¬ Frost’s Apparatus for Carbureting Glencoe Mining Co.41, 136, 2.2 Grade Indicator. Brown’s*. 44.3 quired.. 83 Air. 413 Glendale Mg. Co.520 Gr it’s Pro -ess of Me ting Iron.467 Explosives, New Minini; . 115 Fteley. Alphonse . 84 Glendon Iron Co. Ill Graham Is1 ind. B. t;.. Coal. 376 Explosive?, Ti'initophenol. 178 Fulminate of Mercury, Manufacture. 319 Glen Garnock Iron and Steel Co. 1 Giahami'e, 'lexaa. 3^ Exports, Drawback on. 412 Fuller’s Earth Deposits, Great Britain 353 Glen Garry Mg. Co. 447 Granier, F.. Silver Qu stion. 4.35 Exports of Great Britain, Decrease in 107 Fume Arrestor for Furnaces, lies’ Globe Smelting Co. 62 G, A. R Mii'C-, Arizona. 469 Extension Mine, Colo. 319 Patent. 371 Glucinum and its Properties. 389 Grand Republic Mg. Co., 15, 160, 282, Fumes ftom Dynamite. 58 Gogebic Iron Range, Vvisconsin, 161, 182 327, 471, 616 Furnace. Gasoline Heat, and Hraz.*.. 203 I Gold, Apparatus for Extracting trom Grand River, Colo., Mineral Deposits. 73 Furnace for Metallurgical Operations, Ore, Kylsworth & Payn’s Patent... 227 Granite Cutters’ Strike in Vermont.. 301 Fair Haven Coal Field. Wash. 136 Lauih’s Patent. 371 I Gold Bars, Non-homogeneity of...3l7. 603 Granite Mir. l)ist„ Mont. 399 Fair State Mk. Co. 495 Furnace for Metals, W. A. Baldwin’s I Gold Belt of California, Survey of.... 199 Granite Mountain Mg. Co., 11,160,183, Fall, Prof. Delos. Introduction to Patent. 11 Gold Bug Mine, Ariz. 13 279, 326, 374, 590 Chemical Anali/sin. 579 Furnace, Open Hearth, Aiken’s Pat.. 227 Gold Clause in Mortgages.625 Grant County, New Mexico. 136 Fall River Iron Works .372 Furnace for Reducing Ores, Cha- ' Gold Coins, Light Knglish. Re-coinage 291 Granulation of Ores by Blake’s Fan and Motor. The Diehl*. 34 band’s Patent. .563 ; Gold, Detection of. in Solution. 603 Crushers. 99 Fannie Rawlings Mg. Co.319, 416, 517 Furnace Tap, Matthewson’s Patent.. 317 Gold Deposits at Pine Hill, Cal.610 Graphic Statics, Elements of.531 Fans of Different Types, Observations 635 Furnaces for Tin Ores. 3 Gold Discoveries in British Columbia, 112 • Graphite for Boiler Pitting.229 Earn ington Coal Fields, West Va.... 362 Furnace, Tipping Open Hearth*.293 Gold Mines,Harcuvar Mountains, Ariz 302 Graphite Separation Process, Nibe- Farncouib Hill Mg. Co. 11 Furnace, The Mexican Vaso. 156 Gold Discovery, Kingman, Ariz. 13 llus’ Patent.515 Farnswor.h, P. T. 420 Fuse Igniter, Doyle’s Patent. 179 Golden Chariot Mine, Idaho. 303 Grass Creek Coal Mine, Utah. 376 Farish. John B..*.588 Fyfe’s Amalgamating Apparatus. 156 Golden (7olo. Smelling Works. 445 Grass Valley Dist., Cal. 19 Farrell’s Air Compressor. 83 : Golden Crown Mine, Mont. 375 Grate. Jernburg’s Shaking. . 173 Fan ell Foundry & Machine Co. 81 ; Golden Engle Mine, Colo.637 Gravelotte Gold Mine, S. Africa.521 Farrell’s Process of Refining Copper. 467 Golden Feather Channel Co. 62 Gravity Railroad, Water Balanced.. 105 Faulkner, Roland P.192 Gadsden Furnace Co. 201, 444 Golden F’leece Mine, Colo. 205 Gray Eagle Cons. Mg. Co.. 1.59,z06. 252. Faulting in Veins. 27 Galena Mining Co. 41 ' Golden F'leecc Mine, Wash. 472 282, 325, 373, 416. 613 Fearn, Percy L. 516 Galena Mining District, Kansas. 63 I Golden Leaf Mining Co.183, 301, 3H Gray Eagle Mines, Cal. l.>8 Federal Loan Cons. Gold Mg. Co.277 Galena Ore Shipments.Weekly I Golden Nugget Mine, Ariz. 445 Great Britain, Decrease in Exports... 107 F'eedwater, Purifying .651 Galena Smelter, British Columhia.... 17 I Golden Reward Chlorination Works, Great Britain, Fuller’s Earth in.353 Ferric Salts, Manufacture from Gallagher Hr Lang Coal Washer.6.35 S. Dak.88, 2;5 Great Kiitain, Iron Output. 389 Roasted Pyrites. 251 Gallatin Asbestos Co. 231 : Golden Reward Mg. Co-, 11, 41, 1 6, Great Britain, Mineral Statistics . . INI Fertilizers, American, in the West Hallway, Arthur P. 84 I 227. .316, 412. 472, 638, 516 Great Britain, New Coal F’lelds. Itfl Indies . 324 Gait Mine, Mont . 251. 399 I Golden Sand Mine, S. Dak. 255 Great Britain, Pig Iron Prod, in 1891.. 56 Fertilizer, Basic Slag as. 419 Galvano-Plating with Iron and Nickel 201 : Golden .Smelter, Colo. 469 tlreat Britain, Ammonium Sulphates 293 F'ield. C.t rus W. 60 Galve-ton, Deep Well.538 i Golden Star Mg. Co. 399 i Great Britain. R.'tilroads of.322 F’iles and Their Use. 388 Gandara, Jose. 157 Gold Exports, Heavy. 426' Great Britain, Steel Prod, in 1^2. 318 Filling .System at the Minnesota Iron Garci..’s Process of Recovering Tin Gold Extraction Process, Molden- Great Britain, Telegraphs of. 61 Co.’^ Mines*. 9 from Tin Plate. 179 bauer’s Patent.347 Great brilain. United States, Europe, Filtei ing Plant, Philadelphia Water Garfield and Blaine Mine, Mont. 135 Gold Extracting Process, Munklell . 2(3 Comparative Cost of Making Steel.. 316 Works. 36 Garfield Mine, Utah.16, 41 I Gold Fields, British India. 289 Great Falls Quarry Co. 15 Financial Situation in India. 176 Garfieid Tunnel, Idaho.16, 303 : Gold Fields. Lower California. 377 j Great Falls VVke., Boston & Montana F'lndlay Rolling Mill Co. 60 Garnett Gold Mining Co.207 ; Gold F’ields. South African.217 ' Cons. Co.507 Fire Centre Gold Mg. Co.109, 398 Gas, Apparatus for Making, McBride I Gold Fields, .Spartanburg, S. C. 52 Great Ln kes and the Sfississippi River, Fire-damp Detector*. ... . 191 & Fi-her’s Patent. 321 Gold and Greenbacks in (talifornia... .529 Commerce of.339 F’ire nt the Hill-Farm-Parrish Mine*. 161 Gas Assay Plant*.393 Gold Hill Mine, N. C. 472 Great W’estern Iron Mg. Co. 543 Fire-proof Process, German .318 Gas Coal in Germany, Price of.166 Gold Hill Mg. Co.256, 374, 518 Great Western Quicksilver Co. 11, 227, First National Mg. Co.1.59, 2.’)0, 373, 517 Gas Engine, Days’ Reversible*.271 Gold Metallu^y, The Arastra in.626 366, 346, 442, 538 Fissui'e Veins in the Cabinet Anti¬ Gas Engines, Motor for Cars, Best’s Gold Mine, King’s .Mountain. N. C.75, 117 Greece, Petroleum Imports. 133 clinal, Mont. 605 Patent. 419 Gold Mine, Mexican, Cost of Work... 110 Greek Flmery Stone, Price of.484 Five-Twenty Mine, Utah. 88 Gas Engines, Water Gas Plant for*... 173 Gold Mines, British Guiana. 419 : Greenbacks and Gold in California.... 529 Flagler. H. M. ?0l Gas Fuel, Hastings’ Paienf.347 Gold Mines, Carbon Co., W’yo. 88 Greenleaf. James L. 324 Flagstaff Mg. Co.136, 161, 146. 517 Gas Furnaces for Copper Smelting... 339 Gold Mines, Formosa, China. 197 ; Green Mountain Mg. Co. 610 Flanged Beams. Machine for Cutting, Gas Furnace for Refining Copper, Gold Mines, Kotschkarsk, Russia_ 29.3, Greensburg, Pa., Rolling Mill. 229 Potter’s Patent. 467 The First.. 387, 435 Gold Mines, Mashonaland, S. Af..l85, 473 Greenwood, M. B.3.'4 Flathead Coal Basin, Montana. 57 Gas Furnace, Sienien.s’ Patent. 515 Gold Mines, New S. Wales.424, 497 Grierson Coal Loading Machine. 107 Fiatlier. John J.. Dynamometers and Gas in the Cons. Cal. & Va. Mine_ 6f!3 Gold Mines, Nova Scotia.257, 425, 449 Grinding Pan, Taylor’s Patent. 419 the Measurement of Power. 243 Gasoline Heat, and Braz. Furnace*.. 203 Gold Mines, South Africa. 75 Griffith’s Coal Screen. 227 Flat "rop Coal Assn., West Va.305 Gas Oven Furnace for Annealing*.. 129 Gold .Mines, 3'he Transvaal. .515 Groesbeck-Brown Leach’g Wk8.Utab. 64 Fletcher’s Apparatus forElectricDep- Gas Producer, Korneman’s Patent... 119 Gold Mines, Victoria, Dividends.289 Gross’ Mechanism for Mining Drills osition of Metals.413 Gasket & Washer Cutter*. 227 Gold Mines, Western Australia. 497 and Stamps .347 Fletcher’s Apparatus for Refining Gates’ Stone Crushing Machine. 635 Gold Mg. in California. 5(5 Grub Gulch Dist., Cal. 589 Metals by Electricity. 419 Gauley Iron Co.541 Gold Mg.,Chinese System’.629 Gudemann, Edward. 420 Flexible Water Pipes, Laying. 510 Gayley, James.414 Gold Mg., Dutch Guiana.328, 3^ Gun, Brown Segmental W'ire.368 Flint GUss Workers’ League. 61 Gelatine .Sheets, Printing Lantern Gold Mg., Honduras.553 Gun Carriage, New. 2^ F’lood, Jas L..6.36 .Slides on.569 Gold Mg., Manitoba. 545 Gun Flint Lake Mining Co. 134 Florence Iron Co. 86, 231, 326 Gellivara Iron Mines, Sweden. 611 Gold Mg., Queensland. 424 > Gun Flint Lake. Nickel Ore at. .574 F'lorence Iron River Co. 638 Gem Mining Co.301, 542, 614 Gold Mg., Wales. 185 : Gun, Haskell’s Multi-charge. 84 Flores Mill, A'iz. 469 Gem Mines. Mont . 87 Gold Mourtain Mine. S. Dak.304, 616 ' Gun Spring.?. Electric Tempering of.. 127 Florida Phosphate Mining.. .'.— 319 Gems and Prrcions .Stones of North Gold Ores.Kittson-Brown Precess.285, 2^ ; Gnns, Steel Wire. 345 F'ludden Mg. Co. 416 America. 555 Gold Ores, Treat., Daumas’ Patent . 575 \ Gurney Milling & Mg. Co. 41 Flynn. John . 84 General Flleciric Co.157, 180, 593 Gold Ores, Variations in Milling,* 198, i Guston Mg. Co.613 F’ly Wheel, Repairing a Broken*. 127 General Thomas Mine, t'olo.349 222, 245, 268, 291, 531, 558 ; Gutelius, N. P. 114 F’ontaine, Hippolyte. 276 Generator and Engines, Coupled*.607 Gold Output. South Africa . 1 Gypsy Cons. Mg. Co. 593 F’orbes, George.264 Genuine Mining Co. 181 Gold Park Mg Co. . 446 F'orcite, American Co.’s Works...... 75 Geodetic Surveying. 315 (iold Placer Mine. History of.481, 483 H Ford, S. A.. 468, 612 Geological Survey, Alabama, 98, 243, 578 Gold Placer Mining, Surinam . 196 Ford’s Apparatus for Reducing Bitu¬ Geological Survey. Appropriations .. 61 Gold Precipitant. New. 6t'5 Haddock, Samuel F. 588 minous Rock . 107 Geological Survey, Arkansas, 122, 243, Gold Precipitation from Chlorine So¬ Haege, Dr. Theodore. 84 Foreclosure on Coal Mining Property .59 263, 633 lution*. 10 Haggin. J.B. 36 Foreign Coins, Official Values_Weekly Geological Survey, Austria-Hungary 435 Gold Prince Mining Co .205 Haidee Mine, Idaho. 278 Eoreign Corporations, Entering Min¬ Geo'ogical Survey Bureau. 75 Gold Production, Montana. 39 \ Hailes, Wm. 228 eral Lands. 299 Geological Survey, Idaho.170 Gold Production, New Mexico. 423 j Haines’Brick Kiln. 131 Foreign Ownership of Mining Prop¬ Geological Survey, Indiana.459 Gold Production, Nova Scotia. 329 | Hainsworth Steel Co. 612 erty in Mexico.361 Geological .‘‘urvey Investigation.. 108, 228 Gold Production, S. Africa.481 ; Hall, Chandler. 192 Formosa. China. Gold Mines in. 497 Geological Survey, Iowa. 60 Gold Production, Transvaal Republic 113 i Hale & Norcross Silver Mine. 15 Forrest-Queen Mining Co. 133 Geological Survey, Kentucky.. 180 Gold Production, V’ictoria.112, 121 i Hale & Norcross Mg. Co.15, 40, 64, Forrest-Rose Mg. Co.303 Geological Survey, Missouri....8.3,195, Gold Production, W’itwatersrand, 87, 135, 160, 184, 232. 304, 327, 351. 375, Foresiry Division, Agricultural De- 363, 483. 628 South Africa. 97 399. 423. 447, 472. 519. 544. 591 partmeni, Work of.505 Geological Survey. Tennessee.628 Gold Recovery Co.. 399 ' Hall & Wood’s Bituminons Rock Re¬ F'orest^, Report of Chief of Division. 26 Geological Survey, I'pxas.98, 339, 603 Gold Recovered from Cleaning Up ducing Machine. 419 Foriis Powder. 202 Geological Survey, U.S., Areal Work. 392 Old Mills.433 Hamburg, Pa.. Rolling Mill. 588 F'ort Payne Coal and Iron Co.. 81, 85, Geological Society of Anierica.204, 612, 636 Gold Saving Process. Eckson’s.400 Hamilton Iron Mg. Co. 253 157, 229, 252, 3'5, 397 Geological Society of France. 435 Gold Separation Process, Atkins’ I Hamilton-Lndington Iron Mine....494 . 518 Fortunatus Mining Co. 185 Geology. Calvinistic. 26 Patent. 419 ' Hamilton’s Mine Elevator. 59 Fox-Hayward-Comsiock Lode Suits.. 505 Geology in the National Museum. 213 Gold Shipment from San Francisco Hancock Mg. Co..■ 38 F'rance, Bitumen. 271 Geology of the Natural Gas F’ields to Washington. 173 Hanna District, Wyoming. 592 France, Coal Production.370 about Pittsburg. 106 Gold Shipments, British Columbia.... 640 < Hanover District, New Mexico.87, 161, 327 F’rance, Society for the Encourage¬ Geology of Pennsylvania, Report on.. £8 Gold Shipments, British Guiana.. .112. 568 : Hardcnbnrg Mine, Cal.613 ment of National Industry Report.. 116 Geology, Structural Studies in*.390 1 Gold Shipments, Dead wood. S. Dak... 5S8 ‘ Hardinge Smelting Coy.542, 617 Francis’Improved Drill Chuek. 35 George Mine, Mont.. 326 Gold and Silver Exports and Imports, Marker, O. H. 414 Francis, James B. 301 George, W. R. 60 Weekly Harmony Mines, S. Dak. 161 Franklin Institute.396 Georgia-Alabama Invest. Co., 97, 278, 518 ' Gold and Silver Extraction Co. 136 Harmsen’s Process of Separating Tin F’ranklinite Treatment, Con vers’ Pal. 635 Georgia, Asbestos. 517 , Gold and Silver Ores. Cyanide Pro- ; from Waste. 419 Franklin Mg. Co., 11, 14, .38, 206, 253, Georgia, Corundum. 518 ,, cess for. 1. 3. 17, 27, 121, 146. 153, 291, Harney Peak Tin Mg. Co.. 61. 13^ 232, 303, 350. 494. 590 Georgia, Manganese Ore.349 316, 327, 339, 341, 363, 365, 381, 416, 423, 274. 327, 424. 49S, 512. 586, 502 Frasch’s Process of Treating Sludge.. 635 Georgia Pyrites Mg. Co.542 440, 606 Harney Peak Tin Ore oonceutraior... 102 Fraser, Andrew.. . 616 German Alkali Process . 51 Gold and Silver Production.25, 35, 442 Harquahaia Mines, Ar>z .588 Frasse’s Sensitive Drill Press. 35 German-American Petroleum Co.420 ; Gold and Silver Production in the Harrab, C. J. 276 Fraud in Mineral Land Patent... 587 German Coal Washing Plant*. 4 ! United States for 1891.25. 35 . Harris. Gilbert D.180 F’razer & Chalmers. 445 German Engineers’Union. 276 : Gold and Silver Production in the I Harris’ Method of Solidifying Quick¬ Frazer’s Ore Concentrating Machine. 563 German Gas Coal, Prices of.466 W orld for 1891. 35 sand*.272 Freddie Lee Mine, British Columbia.. 256 Germania Mine, Mont. 495 Gold, Simonton’s Machine for Ex- Harris, t). M.5(>4 Free Coinage Argument . 2 Germania Iron Mining Co.64. 253 I tract ing from Ores, Patent. 59 Harris, W’m. E.372 Free Silver Coinage in the L. S. 25 German Method of Preventing Coal Gold Standard. Austria-Hungary ... 354 Harshaw Mine, Anz . 5M Free Silver Defeated. 49 Dust Explosions.246 Gold and Tin Lodes, Conflicting Halt’s Equationer*..371 Freight Cars. Defects of..562 German Mills of the Lahn.557 Claims. 33 Hartsfelt. Operations at Rome, Ga... 278 French Car Starter*. 487 German Mines* . 437 Goller Mine. Cal. 589 j H»rt?bome. J.. Pottatown Steel French Coal Mines, Statistics of. 433 German Telegraph Lines. 145 Gonzalez’s Ore Concentrator.56J ! Works.43?, 464. 488 French Geological Society. 435 Germany, American Manufact’rs in.. 228 Good Hope Mine, .Ariz. 420 Hartsog’s Rock Drilling Machine.419 French Gold and Silver Coinage ... 308 Germany, Lead Production..330 Good Hope Mine. Cal..589 Harvey, Alfred. 60 French Guiana, Gold Mg. 328 Germany, Loss in Dressing I-ead Ores 78 Goodwin, H. Stanley. 636 Harvey, C. C.636 French Miners' Strike. 449 Geyser Mine, So. Dak . 136 Goodyear Mining Co. 254 Harvey Lake Coal Field. Penna.568 French Patent Law . 81 Giant Powder Co.201, 229 Gordon & Gilbert’s Machine for Harvey’s scraper for Roller Mills_227 French Society for the Encotirage- Giant Powder Co., Explosion. 60 Edire-Curling Sheet Metal. 323 Hosbrouck. Geo. P.588 mentof National Industry.435 Gisborne. F. N . . 228 Gordon Mine, Leadville, Colo. 13 Hazelron Iron VVorks. J5S French Tax on Petroleum.511 Githen’s Channeling Tools for Rock.. 107 Gossan, Chemi-try of.5SJ Haskell Multi-cbaixe Gun. 84 F’rick Coke Co. 333 Get hen’s Process for Blasting Stone.. 107 Gould. Henry B. 612 Hastings' Apparatus for Heating F’rick, George. 6M Gladstone Mine. Cal. 541 Gould & Perry Mining Co. 200 , Boilers by Gaseous Fuel . ..347 Frick, H. C.278. 301 Glass Manufacture. Oxvgenin. 413 ‘ Gould’s Electric Triplex Pump. 129^ Haugb-Kuris Steel Co.596 Friction Hoist*...-. Ii7 Glass Manufacturers Ass’n.516 Go wen. Francis 1.4M i Uawkeye Gold Mg. Ca, 16. 88. 185, 208. Fritz, John.313,324, 337 Glass Melting f urnace. Kiteon’s Pat. 443 i Gracey-Woodward Iron Co.1C8. StJ I 376. 520.568 VIII IlSTDEX

Hawes’ Center Grinder for Lathes*... 515 Huanchaca Mine, Chili.274, 313 Intersecting Veins, Location.418 Japanese Exhibit at Chicago. 12 Hawley Salt Works. 36 Huckelberry Mining Co.62, 159 invoices of Imported Goods .324 Japanese Railroads.2*29 Hay Creek Coal Fields, Wyo. 41 Hudson Iron Co.326 Iowa, Coal Discovery.278, 350 Jasper Co,. Mo., Ore Shipments. ..Weekly Haynes. J. P., Cyanide Process. 3 Hudson River Tunnel Co. 180 Iowa, Natural Gas. 350 Jay Bird Mg Co. 373 Hazel Dell Colliery. Pa.520 Hughes’ Apparatus for Removing Iron Iowa, Nicktil.566, 634 Jay Gould Mine, Wash. 545 Hazelton Coal Mines, Penna. 184 and Alumina. 131 Iowa State Geological Survey. 60 Jay Hawk & liode Mining Co.519 Headden. Dean.301 Hughes' & Chisolm’s Apparatus for Iron, Action of Carbon Mon' xide on, 156 Jeddo Coal Mines, Pennsylvania. 112 Heat, Effects of. on Steel..— 433 Treating Phosphate Rock.347 Iron, Action of Water Gas on. 59 Jeddo Tunnel. 88 Heat Resrenerators, Method of V»’ork- Hulett’s Coal Storage Conveyor!. 587 Iron and Alumina, Process for Re¬ Jefferson St. el Co. 613 ing, VVainwright’s Patent.347 Hundeshagen, F.. Sulphur in Coal_320 moving, Hughes’ Patent. 131 Jeffrey Mfg. Co.204, 588 Heater, Stillwell-CloSe*.227 Hungary, Gold Extracting Process... 203 Iron and Alumina, Separation of..34, 270 Jeffrey Wheel for Elevator Chain*.... 563 Heating and Smelting, Electric. 57 Hungary. Miners’Wages. 172 Iron in British India. 78 Jenkins’ Cleaning Tin Plate.443 Heathdeld’s Apparatus for Coating Hungarian Copper Co. 278 Iron Centre Mine, Mich.279 Jenks, Arthur V\. 301 Metal Sheets. 59 Hungarian Mines, Utah.82, 232 Iron Chief Mine, Mont. 110 Jenney, Prof. Walter P. 540 Hecla Cons, Mine, Cost of Working... 218 Hunicke Process for Silver Ijead Ores. Iron f ity Dist., Utah. 520 Jernberg Shaking and Rocking Grate* 173 Hecia Cons. Mg. Co.. 11, 218, 2;(7. 304. Con mining Zinc. 606 Iron Clad Mg. Co.325 Jessie Mine, Colo. 349 346.143, 538 Hunsiker, Millard.612 Iron Cliffs Mg. I'o.398, 422 Jewell’s Placer Machine. 107 Heilner, Late Marquis G*. 461 Hunt, M. R. 36 Iron Cliffs Tin Co.590 Joggins Mines, Nova Scotia.233 Heinitz Colliery. Germany. 425 Hunt Co., C. W. 132 Iron Coated with Copper. 151 Johnson Stadia dt Earth Work Tables 2 Hemphill, James.324 Hunt & Platt. 636 Iron, Contracts for.595 Johnston Syndicate Improvement Co. 161 Heilprin, Prof. 12 Hunter’s Apparatus for Annealing Iron, Decline in Prices. 403 John Porter Fire Brick Co. 544 Helena & Frisco Mg. Co.11, 278, 590 Wire by Electricity. 419 Iron Deposits, Arkansas. 363 Jones, Edward. 108 Helena Lead and Silver Mine, Mont.. 110 j Huntingdon & Broad Top Railroad... 115 Iron, Elimination of Sulphur from, Jones, Senator John P. 444 Helena Mont. Stock Quotations.. Weekly Huntington’s Ore Car. 563 364. 387, 412, 437, 460, 485, 507, 556 Jones, Senator John.P., Delegate to Heliochromoscope for Color Photog¬ Huron Mg. Co.38, 63. 253, 350, 590 Iron Fields, New Canadian.561, 627 International Conference.1, 241 raphy.,.515 Husemann’s Ore Concentrator. 83 Iron Finishers’ Union.396 Jones & Iiaughlins. 180 Helmbacher Forge and Rolling Mill.. 36 Hutchinsens’s Air Compressor. 179 Iron Furnace, West Superior, Wis_3-28 | Jones’ Machine for Punching Plates.. 11 Hemlock River Iron Co . 182 Hydrate of Aluminum, Soluble.345 Iron Hill Mit.e, S. Dak.136 | Jones Mill, Chapparal, Ariz.469 Henderson Pump and Motor*.. 130 Hydraulic Crane, Shaw’s Patent. 107 Iron Hill Mg. Co. 64, 136, 232, 4-24 ' Jones’ Process of Treating Ores Con¬ Henderson Mountain Milling Co..207, 495 Hydraulic Dredge, Booth’s Patent_107 Iron Horse Mine, Utah . 256 | taining Sesquioxide of Iron.156 Hendrix Smelter, Idaho. 159 Hydraulicking Phosphate Rock in Iron Imports, Argentine Republic ... 2-28 Jones Sc Ready Mining Co. 182 Henneberry’s Excavating Machine.*. 11 Florida.347 Iron Industry, Scotland.436 Jones Valve for Oil Wells. 1.56 Hennepin Canal. 84 HydraulicMachinery,Duncan’sPal,eiit 53 Iron King Mines, New Mex., 255, 44.5, 615 Jordan’s Amalgamator*. *299 Henry Mine, Mont.481, 495 Hydraulic Mining. British Columbia. 627 Iron, Large Siles. 571 Jordan Mine, Utah. 136 Hercules Mine, Idaho. 278 Hydraulic Mg. in California.37.3, 511 Iron Making, New Zealand. 129 Juarez District, Mexico. 89 Hercules Iron Works. 84 Hydraulic Mg., Rawson’s Patent..539 Iron Manufacture. S. Australia.579 Jubilee Gold Mg. Co. 304 Herculite, a New Explosive. 35 Hydraulic Mg., New S. W’ales.209, 497 Iron Market, Buffalo.Weekly Judge Mine, Mont. 110 Hering Carl, Recent Projresn in Elec¬ Hydraulic Mining, Panama Canal.... 291 Iron Market, Chicago . Weekly Julia Consolidated Mining Co. 138 tric Railroads. 339 Hydraulic Mg. Pump, RocklitTs Pat.. 3*23 Iron Market, Louisville.Weekly Julia S. Mine, Utah. 88 Herkimer Mg. Co.64, 281, 616 Hydrophone. 632 Iron Market, Philadelphia.Weekly Junction Mine, Mont.567 Herr Coal and Coke Co. 39 Hyer, H., Pure Iron and Steel.292 Iron Market, Pittsburg.Weekly Juneau Mining District, Alaska.302 Hermann, Adam. 180, Hyposulphite Processes, Destructive Iron Market Review.Weekly Jupiter Mine, S. Dakota. 232 Hermosa Mill, Ariz. 313 to Pipes. 289 Iron Mine, Hematite, English*.393 Justice Mg. Co., 135, 183,255,-280, 375, Herron, James. 612 Iron Miners’ Strike, Belvidere, N. J, 84 376. 423. 471, 510. 519, 543, 567. .591 Hewitt, G. C., Silver Question .291 I Iron Mines, Bristol, P. Q. 256 Hicks’Ore Concentrator. 11 I Iron Mines, Cherokee County, Ala... 37 Hidalgo Mg. Co,, Mex.281, 521 ' Iron Mines, Elba. 328 High Speea Eleciric Railroad. 245 Ibex Mine, Utah.376, 517 616 Iron Mines. Mesaba Range.579 Kanawha Iron Mining Co. 446 Highway Construction.459 Idaho Antimony Co.614 : Iron Mining, Nova Scotia. 449 Kaska William Colliery. 40i> Hill, F. A., Hill Farm Parrish Mine Idaho Cons. Mg. Co.401 ; Iron Mining, Woodstock, Ala.*.463 Kaslo Slocan Dist., B. C.159, 377, 616 Fire.461 Idaho Geological Survey. 470 , Iron Mountain Concentrator. 135 Kearsarge Mg. Co... 182,279, 566 Hillsboro Dist., New Mexico. 472,6.39 ; Idaho Gold Mine.86, 131 Iron Mountain Mg. Co., 11. 207, 227, 3-26, Keasbey, Robert A. 84 Hillsboro, New Mexico, Smelter,.. 161, 208 : Idaho Marble. 206 { 346, 442 Keating Mg. Co. 304 Hill’s Curved Spike . 204 Idaho Mine, Washington. 448 ; Iron and Nickel, Galvano-plating with 201 Kedzie, G. E.j Cyanide Process.6U6 Hillside Mine, Aiiz., Cyanide Process. 363 Idaho Mg. Co .11, 227, 346, 442, 538 i Iron Ore Ass’n., Western. 12 Keiper’s Slag Separator. 419 Hillside Mines, Ariz.37, 85, 158 i Idaho, Opals.269, 398 Iron Non-uniformity of. 5.58 Keller, Thos. P .492 Hillside Mines, Creede, Colo. 133 : Idaho Spring Dist.. Colo. 277 ' Iron Ore, Belmont Magnetic. 484 Keller, W m. H. 564 Hinsdales’ Piocess of Preventing | Ideal Twist Drill Grinder*. 56 Iron Ore Deposits, Ho^ Co., Ga. 278 Kelley, Frank. 60 Segregation in Large Ingots. 83 ; Idlewild Gold Mg. Co.62, 354 Iron Ore Expo'-ts, Spanish. 133 Kelley, J. H.. Brimstone and Pyrites. 76 Hinton Mine. New Mexico.208 Iguana Mines, New Mex. 616 Iron Ore from Labraidor. 414 Kempton Mine, Cal.30.3 Hippoootamus Lode, S. Dak.301 lies’ Blast Furnace.371 Iron Ore, Frederick Co., Maryland.. 109 Kendall, E. D., MacArthur-Forrest Hite, C. E.. 12 I lies’ Dump Car.347, 371 i Iron Ores, Marquette Dist.*. ‘29 147 Hocking Valley Coal Co.187 lies’Fume Arrester for Furnaces.... 371 I Iron Ore, Mexico. 457 Kennedy Mg. Co!"!.‘.'.'.'.'.’.’.‘,!!.’.'.ii, 62, 589 Hocking V'alley Coal Operators.. .591, 615 ; lies’ Process of Recovering Metal Iron Ore Mines, Sloss Iron & Steel Co* 318 Kennedy’s Process for Steel Ingots... 59 Hockley’s Ore Concentrator. Hi from Copper Alloys. 371 ! Iron Ore Prices at Pittsburg. 21 Kent’s Rock Crusher.323 Hodgkins, Thos. C.372, 540 ' lies’ ."^creen for Metallic Fumes. 467 ' Iron Ore In Missouri. 207, 279 Kentuck Cons. Mg. Co—304, 375, 401, Hoffman Magnetic Separator.. ^_26, 99 , Illinois f'oal and Coke Co. -253 ' Iron Ores, Cuban.1.445, 545 423, 471, 496, 519, 513, 591, 638 Hoffman-Otto, Coke Ovens*. 439 i Illinois Coal Miners’ Wages. 374. 194 I Iron Ores, Granulation by Pressure Kentucky, Geological Survey.180 Hoffman, W. H., Pyrites in Croton Illinois Mining I 'o. 280 ' and Rolls. 8 Kentucky, OH Wells.566 Iron Ores. 10 Illinois Mining Institute Proceedings. 435 Iron Ore Shipments, Ashland, Wis.. Keriie Cable, Large Order for. 132 Hofman, H. O., Slag Pots for Lead Illinois Steel Co.84, 204, 516, 636 161, 185, 256, 497, Kerite, Day’s . 12 Furnaces.630 Illinois Pure Aluminum Co. 372 ! Iron Ore Shipments. Lake S'lpenor, Kerr, D. J.444 Hofman, H. 0„ Metallurgy of Lead.. 531 , Imperial Mine. Utah. 88 ! 86, 199. 231, 491, 562 Kerr, Mark B..372 Hofman, H. O., Milling of Gold Ores.. 268 Impregnating Liquids with Gases. Iron Ores. Bricking, Edison’s Patent. 467 Kerr Mine, Utah. 209 Hofman’s Calculation of Charges for Bachman’s Method Patent. 227 Iron Ore Shipments, Two Harbors, 326, 374 Kettle Falls District, Washington_ 88 Lead Blast Furnace.265, 270 | Imperial Cons. Mg. Co. . 513 Iron Ores in Virginia*. 150 Keyes Silver Mg. Co. 471 Hoist, Automatic Band Friction*.177 Imports, Canada.133 Iron Output, Great Britain. . .389 Keyes, C. R., Nickel Ore from Iowa... 634 Hoist. Direct Acting*. 645 Imports of Merchandise, U. S. 372 Iron, Pig. Grading of. 368 Keyes, W. S.540 Hoisting Engines at Mines, Safety Independence Mg. Co.350, .399, 495 Iron, Pig, Outlook for .3W Keynote Mine, Utah. 112 Appliance for*.. 535 India, British. Iron. 78 i Iron, Pig, Production.105 Keystone & King Mining Co.207 Holden Lixiviation Works, Aspen. India, Coal.233,3-28. 311 Iron, Pig, Prod.. Great Britain. 1891.. 56 Keystone Mine, Nevada.447, 591, 615 Colo.85. 253 India, Financial Situation. 176 Iron, Pig, Removal of Sulphur from, 109 Keystone Mine, Silverton, Colo. 63 Holden Smelter, Leadville, Colo., 13, India, Gold Fields. -289 Iron Prices. Decline in.309 Keystone Mine, Utah. 41 62, .373 India Rubber, Artifloial.371 Iron Production of the South. 54 Keystone Mg. Co. ..88. 181, 2.56, 305, 473, 494 Holland Dikes.394 India, Steel. 318 Iron, Melting. Graf’s Patent. 467 Key West Mine, Nev.400 Holliday. M. B.301 India, Tin Deposits. 353 Iron, Process of Se parating, from Ore. Keys, W. W. & R. M.301 Holland Mines, Arizona. 109 Indiana Bridge Co.468 Earne’s Patent .419 Kidwell, Edward. 157 , 276 Holmes Mg. Co.327, 495 Indiana Geological Survey. 159 Iron, Puddled, Determination of Slag. 2 Kiln. Continuous, Radford’s Patent.. 371 Uolston Salt Works, Virginia.276 Indiana Mining Co.207 Iron. Removing Nickel from. 81 King. Homer S.180 Holy Moses Mine, Creede, Colo....337, 470 Indiana Natural Gas .350 Iron Sand, Smelting, in New Zealand..370 King Mine, Mont. 279 Homestake Mine, Idaho.86, 398 Indiana Oil Fields.'.. 470 Iron Shipments, Vermillion Range... 39 King’s Mt. Gold Mine, N. C.31, 75,147 Homestake Mine, VV’yoming .281 Indian Queen Mg. Co.591 Iron Smelting. Central Africa.368 King Solomon Mine, Mont.14, ^ Homestake Mg. Co., 11. 66, 86, 186, 227, Indicator, Speed Alarm* . 154 Iron, Southern Freight Rates on. 92 Kingston Coal Co. 64 282, 346. 398, 401, 442, 498, 538. 593, 616 Industrial Progress in the South*..30, 54 Iron Silver Mg. Co. 517 Kingston Dist., Nev.639 Homeste^ Entry on Mineral Land... 443 Ingalls’ Coal Loader.635 Iron and Steel, Experiments on the Kingston District, New Mex.472 Homestead Iron Mg. Co .. \. 447 Ingalls, Walter Renton.516 Elimination of Sulphur... .297 Kingston Smelter, New Mex.544, 615 Homestead Entry Coal Lands.611 Ingersoll Mine, Mont. 39 Iron and Steel Institute Journal.315 Kioto Canal, Japan*. 584 Homestead Strike, 20, 25, 44. 61, 84, 116. Ingersoll-Sergeant Drill Co.108 Iron and Steel, Phosphorus Determ¬ KirchboffC., Spelter. 227 1-22, 132, 140, 396, 420 Ingersoll-Sergeant Drills, York Farm ination in. 320 Kitson’s Glass Smelting Furnace. 443 Honduras, Mineral Wealth.553 'Tunnel. 36 Iron and Steel, Pure, Production of.. 292 Kittle Morris Mine, Mont.543 Honeybrook Colliery, Pa.496, 544, 563 Ingot Extractor, Lewis’ Patent. 156 Iron and Steel Sheet Mfr’s. Assn_561 Kittitas County. Wash., Mines of_608 Honigmann’s Apparatus for Super-.. Ingot Manipulator, Cunningham’s Iron and Steel Workers’. Atnalga- Kittson-Brown Process for Treating heating Vapors and Gases. 467 Patent ... . 347 mated Assn, of.36,158,163. 420. 492 Gold Gres.220, 265, 268 Honorine Mill, -'tockton. Utah .521 Ingots, Large. Huesdale’s Patent Iron, Structural, Contracts.44, 45, 648 Klamath Dist.. Cal. 6.37 Hoosier & Campbell Mining Co. 159 Process of Preventing Segregation. 83 Iron Trade. British... 1 Klein Mill, Ariz.5^ Hoover Hill Gold Mine, N. C.472, 5-20 Ingots. Process of Forming,'J'howless’ Iron Wire, Oxide Films on. 78 Knigbt, F. C.,Determination of Lead. 562 Hope Mg. Co.205, -207, 330, 442, 538 Patent.419 Ironworks, New, in the South.... 492 Knight, John T. 588 Hopkinson, John, Papers on Dynamo Inland SaltfM.400 Irrigation. Artesian Wells for. 73 Knott Brothers Phosphate Co. 109 Machinery.5.54 Inman Coal Mine, Tenn.592 Italian Mg. Co. . 303 Knowlton, Frank H. 180 Horan, Anthony._..157 Inman Steamship Line. 229 Itasca lion Co., Chicago. 165 Knowlton Mg. Co. 543 Hornet Mine, California. 85 Innai Copper Mine, Japan.. 185 Itasca Mg., Co . 251 Koops’ Antimony. 177 Hornet Mine and Mill, Idaho. 230 Inna Mg. Co.516 IvanhoeMine, Wash.112,473 Koneman Glass Producer.443 Horn Mine, Ariz. 230 Institute of Mining Engineers, Ives’Heliochromoscope. 515 Koneman’s Re-carburizing Metal.443 Horn Silver Mg. Co. 11, 63, 330, 346, 520, 514 American, Meeting.6, 33, 368 Konig, Dr Geo. A.276 Horseshoe District, New Mexico. 40 Institute of Mining Engineers, Kootenai 8c Columbia Prospect lag Co 614 Horseshoe Mino S. Dak.41. 88, 496, 616 American.6, 33. 276, 301, 388, 544 Kootenai District, British Columbia.. 424 Hoskins,’ L. M., Elcmetds of Graphic Integral Quicksilver Co. 252 J. R. Mine. S. Dak. 3?7 Korneman’s Gas Producer.419 Statics. 531 Intellectual Pursuits or Culture by Jackson, Col. D. H. 540 Krause, Chas. H. 414 Hospitaliere, E. 276 Self Help.554 Jackson Iron Co.159, 374 Kriegs’ Tungsten Method. 83 Hott’s Separator and Amalgamator.. 419 Internal Commerce of tbe United Jack Rabbit Mg. Co.138, 401, 445 Krupp Monument at Essen.265 Houghton Co., Mich., Copper Mines.. 374 States in lt91.339 Jade Quarries in Burmab. 328 Krupp Steel Works. 324 Houghton Co., Mich., Mine Inspector International Monetary Clearing James, William.612 Kuess’ Alembic ..635 Report.422 House.555, 577 James Proc.Reducing Zinc_59,105, 347 Kuntze’s Ammonia Process .635 Houston, Dictionary of Electrical International Nickel Mg. Co. 520 James’ Process of Smelting Complex Kunz, Geo, F. 396 Terms. 2 International Silver Commission, Silver Ores..347 Kunz, Geo. F., Gems and Precious Houston, Prof. E. J., Electricity and Problems for .218 James River Coal Co.352 ^ones of North America.555 Magnetism .579 Intern-itional Silver Conference.. .1, Janin, Alexis. 157 Kurtz’ Slate Shaving Machine. 119 Howard’s Eiectro-plating Apparatus. 419 121, 140,145, 163, 212, 236. 241, 354. 378, Janin’s Art of Amalgamating Silver,. 179 Howe, H. M., Mnkai on Manganese 402. 450, 523, 530, 594, 617, 642 Janin, L., Jr., Mill Construction.607 Steel.387 International Society of Electricians. 435 Janin, L., Jr., Variation in Fineness Howell Coal Co.255 Inter-Ocean Mine, S. Dak.640 of Gold Bars. 317 Labor and Arbitration. 218 Howe-Manhattan District. Idaho. 182 Inter-Republic Gold Mg. Co. 64 Japan, Copper Mines.128,185 Labor and Contract.45^ 482 Howe’s Separating Apparatus. 59 Intersecting Lodes on Mineral En¬ Japan, Kioto Canal*.584 Labor and Business. 169 Hoyt, Carroll L.276 tries.272 Japan, Selsmological Society.180 Labor Hours In Belgian Mines.293 INDEX IX

Labor and Law.193 Levat, D., New Caledonia Nickel McDowell, F. H., Concentration at Meek. C. F. .... 157 L ibor and LiA^sIation.311 Tilly Foster Mine. 10 .... 396 Labor and Organ ization.362 I^ewis.' ’Fredk.’ "h 1 !.’.’.’.’ 'J!! 612 McGarrahan Claim.133, 589, 6l3 Meier,’J. W., Mills on the Lahn 114, Labor, Organized and Free. 116 Lewis 8E Phillips Process of Treating McGee & Daegling Amalgamating 439. 557 Labor and Order. 242 Refractory Ores . 539 Process.255 Meier, J. W., Pribram Mines and Labor Question, 50, 117, 169, 193. 218, Lewis’Treatment of Sulphide Ores . 2ii3 McGee & Daegling Reduction Works, Mills. 28 212, 266, 293. 311, 362, 158, 482 Lewis. W. H.3U1 41, 161 Meier. J. W., Stein Vanner. 367 Labor Saving Improvements and Ma¬ Lewissohn, Leonard. 276 McGee, John, Tables of Equivalent Meinecek’s Ore Separator. . . 467 chines.369 Lexington Mg. Co_II, ill, ill, 280, Measures and Weights. 386 Melting and Casting Metals, Carroll’s Labor and Science.. . 266 330, 316, 375, 442, 417, 538 McGee,W. J., U.8. Geolo^calSurvey. 392 Patent Apparatus .131 Labor Union,Interference with Mines 323 Lexington Mine, Mont. Ill McGill & Standard Cons. Quartz Mg. Melting Furnace, Redman's Patent.. 6M La^’or Unions, Tyranny of Some. 50 Liability of Mine Owners. 389 Co. 589 Melting Pot, Rease’s Patent.371 Labor and Wages . 290 Lida Mine, Ariz. . 415 McIntosh, R. Menzies, W. J., Ashio Copper Mines. 128 Labor’s Apparatus for Bstracting Lidgerwood Mg. ('o . 396,612 McKay Mine, Utah. Mercado, Cerro, Mex.621 Sulphur . 467 Lidgerwood Rapid Unloader*. 481 McKiernan's Rock Drill. Mercur Gold Mines, Utah, Cyanide Labrador Iron Ores. 441 Light from Magnc nn. 151 McMurtrie, Wm. Process at*. 419 Lackawanna Iron & Steel Co.520, 588 Light Rolling Mill "banon. Pa 321.396 McNary’s Gre Concentrator. Mercur Mining Co. 88 Lackawanna Iron Mining Co.231 Lighting Circuits. itch and Fuse Me Ray, Dr. Mercury Fulminate, Manufacture_319 Lsulenburg. Adolph. 157 Box for*. 203 MeVay Corrugated Steel Mills. Mercury. Volumetric Determination. 218 liadshaw, G. E., Spartanburg Gold Lilly Mine. Ont.233 Machinery, Nickel Steel for. Merrill, C. W.. Cvanide Process. 410 Fields. 32 Lily of the Valley .Mine Gnt.328 Maddock’s .Mill Anpliance. Merrill, E. A., Electric Lighting Lady Franklin Mine. New Me*.567 Limestone Quarries, Blount Sgs., Ala.* 413 Maffei, D. Eugene. Speciheations. 243 Lady Godiva Mine, New Mex. 615 Lincoln Iron Co. 131 Magellan Straits, Coal Mines. Merrill’s Parallel Swivel Vise*. 11 Lady Washington Cons. Mining Co... 135 Linden Place Oil Co. 541 Magnesium Light Signals . Merrill Sievens Engineering Co.565 Lafayette Mines, California.109, 133 Linderen, W„ Pine Hill Gold De¬ Magnesium as a Source of Light. Merrimac Consolidated Mining Co... 37 Lahn Mines, Nassau, Germany*.. .114, 437 posits.610 Magnetic Concentration at Tillie Fos¬ Merriman, Mansfield. Introduction to Lake Angeline, Draining, 38, 110, 134, Lindsley. Harrison \V. 321 ter Mine .. Geodetic Surveying. 315 159, 279, 350, 398, 417, 543 Lingle. J. J. 108 Magnetic Conductivity of Iron, Effect Merton, Henry R.516 Lake Angeline Mines, Mich. 470 Link Belt Engineering Co. 13 of Aluminum on . Mesaba Iron Ore Contracts.231 Lake City District, Colo. 205, 397, 589 Linnsean Society .5in Magnetic Separator, Ball’s Patent.. . Mesaba Iron Range 15, 39, 63,1.34. 183, Lake Champlain, Meeting of Institute Lithanode Co., London.588 Magnetic Separator. Chase’s Patent.. ■279, 350, 374, 422, 543, 579, 638 of Mining Engineers. 6 Litharge-Glycerine Cement. 56 Magnetic Dipping Needle*. Mesaba Range, .New Mines on.35U Lake Coal Shipments.2.59 Little I'hief M^. Co.330 Magnetic Sand Deposits in Quebec... Metal Bath. Method of Heating by. Lake Erie Iron Co. 180 Little Jessie Mine, Ariz . 469 Magnetic Separator. Lovett’s Patent. White’s Patent. 463 Lake Ship Channel.56, 612 Little Joe Mg. Co . 303, 373 Magnetic Separator, Conkling’s Pat¬ Metallic Fumes, Device for Collect¬ 1.>ake Shore Iron Wks., Marquette_396 Little Mesaba Iron Co. 207 ent. ing, Sheedy & lies’Patent. 347 Lake Superior Copper Production— 38 Little Pittsburg Mine, Mont.207 Magnetic Separator Plant, Monte Metallurgical Furnace, Bierer’s Pat¬ Lake Superior Irov Co.. 11, 86.110.159, Livengood, Henry S . 276 Poni, Sardinia*. ent. 347 203, 207, 231, 417, 518, 614 Lime Mine, Leadville, Colo. 13 Magnetism of Steel. Metal Market.Weekly Lake Superior Iron Ore Shipments, 86, Live Oak Cons. Gold Mg. Co.277 Magnetometer for Iron and Steel. .. Metal Sheet-', Machines for Drying, 199, 231, 194. 562 Live Oak Drift Gravel Mining Co_ Magnolia Mine, Nev.HI, 207, 375, Norton & Hodgson’s Patent.587 Lake Tunnel, Idaho Springs. Colu... . 517 Liverpool Chemical & Mineral Mar* Maguire, Capt. Edward. Metals. Separation by Electrolysis. . 203 liSke Valley Silver Mining Co. 88 kets.Weekly Mahala Mg. Co. 230, Metal, Cauricedale .299 Lake View Mining Co. 278 Liverpool Overhead Railroad.372 Mail Service, Canadian. Metal Ties, Belgian Slate Ry. 372 La Luz de Barda Mines, Mexico .. .17, 569 Liverpool Water Supply*. 149 Maid of Erin Mining Co. Metal Treatment, Process of, Nen- La Mar, Thos. 588 Livingston District, Idaho.121 Malay Peninsula. TTn Mining in. ninger’s Patent. 635 Lamartine Mines, Colo. 37 Lixiviation PISnt, Stein’s Pass. New Malachite Mine, Idaho. Metal Welding and Heating, Electric, Lamb. W. G., Russell Process at Mar- Mexico.255 Malleable Cast Iron.. Coffin’s Patent.347 sal Mill . 580 Lloyd, D. L., Electricity and Com¬ Maltby Mine, Cal. . Meteorite, A New. 539 Lamont and Paint River Mine. 14 pressed Air in Mining. 418 Maltese Islands, Phosphates of*. Meters for Water Supply.101 Lammers, T. L., Mesaba Iron District. 579 Lloyd. Elijah . 12 Mamainse Copper Mine, Mich. Methow Coal Mine, Wash. 232 Lancaster Chemical Works. 157 Lloyd s Steam Rock Drill.227 Mammoth Coal Vein. Metric System in Nicaragua. 60 Landis, E. K., Phosphorus Determi¬ Local Conditions in Mining Opera¬ Mammoth Mg. Co.61, 86. 136, Metric System in Spain. 299 nation . 9 tions. .50.147 Manchester Ship Canal. Mexican Coinage. 31 Land Office, United States. Report.... 157 Location of Intersecting Veins.418 Mangas Mg. Co ... '. Mexican Gold & Silver Mg. Co.546 Lane, Dr. Alfred C . 276 Location of Mining Claims by Agent.. 418 Manganese in the Caucasus, Russia.. Mexican Indusirial Co. 4ffl Lang Cl iff Colliery, Penna. 541 Lockwood, Howard. 468 Manganese Ore in Georgia. Mexican International Ry.328, 473, 498 Langford's Ore Feeder. 413 Locomotive. Electrie, for Mine*.209 Manganese Ure, Recent Discoveries Mexican Mines, English Investments, 313 Langley, G. B . 3t'i Locomotive, Electric Mining*.583 Manganese, Pyrophoric Properties of Mexican Mining Agency in Europe... 257 Lang Smelter, Mineral, Idaho.182 Locomotive Falling Into Mine Work¬ Manganese Sieel, Mukai on. Mexican Mg. Co .4oi, 5W, 591 Laing's Process for Deitructive Dis¬ ings . 370 Manganese in the Trans-Caucasus_ Mexican Onyx Mines.484, 521 tillation of Mineral Oil. 633 Locomotive, English Electric*.221 Manhattan Mine, Utah. Mexican Onyx and Trading Co .... 137 Langdon. H. M., Charges for Lead Locomotives, Compound, Penna. R. R. 81 Manhattan Gold Mining and Milling Mexican Ores, Importatioa of.267 Blast Furnaces.316 Locomotives, Use of Petroleum in_320 Co.87, 184,352,4,2, Mexican Portland Cement Wks ... 425 Langguth, VV., Gold Precipitation Ijofty Colliery, Pa.421 Manbes, P., Gas-fired Copper Furn¬ .Mexican Republic, Mining Code.GK from Solution. 10 Log Mountain Coal Mines, Kentucky. .398 aces . Mexican Revenue law. 180 L'Anse District, Mich. 279 London Stock Quotations.Weekly Manbes’ Process of Treating Nickel Mexican Silver Exports through Lantern Slides, Printing on Gelatine Lone Dick Iron Mines, Minn.399 Matte. New York. 474 Lone Jack Iron Co....231, 251, 304 Manhole Gaskets. Mexican Sourbern Railroad. 492 La Plata' Mg.’ c6.’,‘ ’88,"i8i.‘ r85', alY, 521 Long Peak Coal Co.181 Manitoba Gold Mines. Mexican Stamp Law. "228 La Plata Mine. Wyo. 328 Long's Coal Separator. 6.35 M' nnesmann’s Process for Adding to Mexican Tariff.324, 541, 602 La Ploma M ne, Sonora, Mex.377 Lookout Rolling Mill. 36 the Resistance of Aluminum. Mexican Tax on Lead Bullion. 49 Lardo Dist., British Columbia.... 610 Loomiston District, Washington. 112 Mannocitin.— Mexican Tax on Smelting Companies. 65 La Reiiia Mine. Mexico. 257 Loretta Mining Co. 254 Mansfield Iron Co. Mexican Tax on Mines... 113 Largest Gold Shipment. 173 Los Angeles, Cal., Reduct. Wks., 445, 469 Manufacturers’ Natural Gas Co. Mexican Vaso Futnace. 156 Last Chance M

L INDEX

Mine Lessee. Suit for Ore Taken. 490 Mining School, Pt. Arthur, Canada... 17 N Nickel Minerals. Some New.609 Mine Operating m Arizona.554 Mining Stock Market.Weekly Nickel Mines, Algoma., Can.147, 363 Mine Owners, Liability of...389 Mining Stock Quotations, Aspen. Weekly Nabob Mining Co. 61 Nickel Alines. New, Lake of the Mine l^urchase. Exceeding Authority. 418 Mining Stock Quotations, Haltiumre, Nanaimo Iron Mining Co. 110 Woods. Can . 41 Mineralogical t’lub. 540 5Veekly Napa Cons. Mining Co. ‘282 Nickel Ore, Gun Flint Lake, Mich_S74 Mineral Character of Land. ‘Sii Mining Stock Quotations, Boston. Weekly Napa Consolidated Quicksilver Min¬ Nickel Ore, Iowa . 634 Mineral L inAcids, Method of Restoring Mineral Land on li. It. Grant, 299. 56.1. 587 Mint of Salvadore. 498 Natural Gas, Iowa. 359 Maxim’s Patent.131 Mineral Mound Exi'lorlng Co . 14 .Mirabel Quicksilver Co. 62 Natural Gas, Jay County, Indiana.. 350 Nitrogen, Burning. 81 Mineral Oil. Distill zation Proeess, Misrepresentations of Mining Claini.. 323 Natural Gas, Ontario. 329 Nitrogen, Combustion of. in Oxygen, 56 Laning's Patent.635 Missoula Mining Co.6.1, 399 Natural Gas, Salt Lake. 61 Nitrogenous Fertilizer, liunver s Pat¬ Mineral Ouiput. Austria, in 1891. 322 M issoui i Coal Measures. _ 363 Navajo Mining Co.. 40. 181. 181, 231. ent. 419 Mineral Poii’t Mine, Idaho _206, 381 Missouri Geological Survey—86, 195, ‘254. .327. 375. 399, 4‘2.3. 4,15. 471 Nitrogen and Water.211 Mineral Paint Mine. S. Dako'a. 136 363, 483, 628 Naval Architects and Marine En¬ Nitro-glyceriii Explosion, Lima. Uhio. 444 Mineral Products of Colo . 565 Missouri Iron Ores.207 gineers’Society.510 Nilze, H. B. C., Alica in N. C.‘292 Mineral Prod , Queensland, in 1891_ 465 Missouri Mine Inspector’s Report. 195 Naval Vessels, New, in Russia..511 Niii'toik & Western R. R.3'2,152 Mineral Product of the U. S. for 1‘'91. 589 Mode’s Glass Tank Furnace.563 Navsmith, John. 510 .N'orrie Iron Co .231, 326 Mineial Prod action of Ariz . 565 Modjeski, Ralph.411 Neo Mine, Mont..326 North American Gem Opal Alg. Co.... 112 Mineral Produ;tirn, N. Wales.. 146 Modoc Mine, Mont. 304 Needles Reduction VVks.637 N. Am. Gems and Precious Stones.... 555 Mineral Product.on. Russia. 27i Moebius’ Process of Treating Base Neg-ier’s Method of Concentrating North American Transportation and Mineral Resources. Newfoundland... 292 Bullion Amalgam.. 179 Sulphuric Acid. T23 I rading Co. of Alaska. 397 Mineral Resources, U. S. 243 Mohawk Cons. .Mining Co . 88 Neidringhaus’ Tin Hlate Works. 60 North Belle Isle Mg. Co, 15, 231, 251, Mineral Statistics, Great R.-itain. 1.51 Mohawk Gold Mine. Arizona. 85 N'eiiiart, Mont., Lixiviation Plant.... 471 327, 351, 39J, 401,195, 567 Mineral Siati.stics, Technology and Moldenhauer’s Procsss of Extracting Nei sic Mine. Mont . 500 North Bloomfield Gravel Mg. Co.373 Trade. .529 Gold from Ore.317 Nellie Mine. Idaho .278, 303 North Carbondale Coal Co.615, 639 •Mineral i^urveys. Colorado . 13 Molecular Surface in One Cubic I'lch, Nellie and .Mineral Point Afe. Co. 421 North Carolina Gold Mine.31, 75 Mineral Valley Zinc Mine. New Mex. .327 195 244. 291 Ncl-on Coal Mines, British Columbia. 281 North Carolina Alica Indu.stry. 292 Mineral Wealth. Honduras. .S51 Molin, W., Belmont Iron Ores. 181 Nelson, J. R . 468 North Commonwealth Mining Co. ‘231 Mineral Zones. Moutana. ’292 Mollie Gibson Cons. Mg. Co., 114. ‘2.30, Nel-on, Thomas. 324 Northern Light Mining Co. 161 Miner Kiiy Mine..’290 m 421, 450. .56 i, 617 Neniiinger’s Process of Treating Ma¬ Northern Pacillc Railroad. 590 Miner’s Dream Mine, Colo. 590 Mollie Gibson Mine, Polyhusite and terials Containing Metals.635 Northern Steamship Co. 231 Miners’Lien Law.441 Teniianiite at. 83 Nephi Aline, Utah. 161 North Eureka iVline, Utah. 406 Miners’ Tools. -Mooley’s Patent. 107 Mollie Gibson Mining Co . 11, •2‘27, 345, Neil.lausen Aluminum Co. 107 North Georgia Mg. Co. 421 Minersville Iron Works, Penna. 612 412, 538 Nevada Alill & Alining Co. 3 North Homestake Aline, New Mex.... 40 Miners'Wages in Hungar.v. 172 Molloy’s New Cyanide Process. 1.55 Nevada Alines, Tuscarora.506 North Land Mine, Uiali.3.52 Minerva Mine. .S. Dak.3.52 Monarch Iron Mine, Mont. 1135 Nevada Queen Alining Co., 15, 40, 61, North Mexic.i Milling and Mining Co., 137 Mines and Agricuituie, S. Wales.. 146 Moneta Mining Co. 11 llx, 135, 160, 183, ‘207,231, 254, 327, 351, North Pabst Iron Alg. Co.303 Mines, Electric Locomotive for*".’269 Monetary Clearing House. Interna¬ 399, 423 North Star Concentrating Wks.512 Mines, How Not to v'ork. 49 tional.5.55 New Alniaden Quicksilver Mg. Co.. . 425 North Star Alg. Co.617 Mines Kitiitas Co., Wash. 608 Money Profits of Engineering Work.. 2il New Archangel Aline, Alaska. 49:1 Northwest Coal Co. 88 Mines of the Lihn, Nassau. German* 414 Monitor Iron Mine. Mich. ‘231 Newark Dist., Nevada.... . 567 Northwestern Alirdng Co., Colo, 181. 401 Mines and Mills. Pribram, Bohemia*28, 52 Mono M. Co.. .85, 252, ‘258. 302. 325, 516. 637 Newberry, Prof. John Strong*.564, 581 Northwestern Ohio Natural Gas Co . 181 Mines, Oil Engines in. 268 Monroe, Prof. H. S. J24 New Caledonia. Nickel & Cobalt. ‘257 Norton Coal Aline, Vu.545 Mines, Tax on, in Mexico. 113 Montana, Asphaltum*. 1.35 New Caledonia Nickel Ores*.,32 Noiton, Fredk. O. . 324 Mines. Victoria, Report on. 146 Montana Cual Discoveries. 374 New Caledonia Silver Mining Co. 53 Norton & Hodgson’s Alachinc for Dry¬ Mine, Fall of Locomotive into.370 Montana Co., Ltd..llii, ‘279,317,529, 543, 638 New Central Coal Co. .. 516 ing Aletal Sheets . 587 Mingo .Mountain Coal and Coke Co.. 350 Montana Gold and Silver Froductioii. 39 New Emma Alining Co. 328 Norton’s Process for Cleaning Tin Mining Acc.dents in Penna.615 Montana Land Laws . ‘299 Newfoundland, Alineral Resources... 292 Plate. 587 Tllining Cage or Car, Schillo’s Patent. 2t7 Montana Mine. Leadville. 62 Newfoundland. P, rites Deposits. 467 Nova Scotia Coal.167, 233, 449 Mining Census, .Scope and Personal*.. .532 Montana Mineral Zones.— 292 New Glasgow Iron and Coal Co....441, 492 Nova Scotia Coal Legislation. 121 Mining Census and Dr. David T. Day. 529 Montana .Miners’ Lien Law. 413 New Gusion Mining Co.11, 114, 109 Nova Scotia Coal Syndicate.521 Milling Claim, Adverse Proceedings. 128 Montana Mg. Co.2.31, 447 New Hampshire, Beryls. 508 Nova Scotia Gold Mines.257, 425, 4i9 Mining Cl liui and Mill Site. .587 Montana .Mining and Investment Co. 135 New Idria Quicksilver Alining Co.. 85 Nava Scotia Gold Pioduction . 329 Mining Claim Patent. 611 Montana Ore Purchasing & Smclt.Co. 422 New Jersey Cent. Lease.210, 307, 332 Nova Scotia Iron Mines. 449 Mining Claims, Aliens’. 323 Montana Rubies. .567 Newman Hill Ore Deposits, Colo.174 Nova Scotia, Mineral Exhibit. ‘233 Milling Claims, Conflicting Surveys.. 393 Montana Sapphires.422 New .Mineral, Idaho, Smelter.637 Nova Scotia Mg. Industry.395 Mining Claims, Location by Agent.... 418 Monte Crislo District. tVash. 256 Newniyer Coke VVk3.,Pa.28i>, 327 Nora Scotia Mineral Lea-es. ‘2i 9 Mining Claims, Notice and Publica¬ Alonte Cristo Mining Co. 2i8 New Pittsburg Coal Co. 588 Nova Scotia, Alining Society of..l32, 25‘2 tion. 393 Montezuma Mine, Utah. 136 New River, West Va., Coke.444 Nowell Gold Mining Co. of Alaska_363 Mining Claims, Patents... 11 Montpelier Mine. Idaho. 14 N. S. Wales Coal Atiners’Stiike. 161 N uestra Senora de Loreto Mine Mex. 185 Mining Claims, Payment of Work on. 250 Montreal Microscopical Society.372 New South Wales Department of Nutt, Col. Henry Clay. 180 Mining Claims, Right of Possession.. 11 Monirenl Mine, Utah.352 Mines and Agriculture. 146 Nyniagee Copper Mine, Australia.... 418 Mining (flaims. Survey.128, 611 Moodey’s Miners’ Tools.107 New South Wales Development of.... 178 Mining Claim, Suflicient Description.. 275 Moore’s Ditferential Block. 178 N. S. vv ales Diamond Discovery. 497 O Mining idaim. Stone Quarry Lands... 441 Moore’s Gasket and Washer Cutter*. 227 New South Wales Gold Mines . .421, 497 Mining Claim on Tiinoer Lands. 393 Moratock Gold Mine, N. Cirolina— 472 New South Wales Hydraulic Mg..209, i97 Obelisk Mill, Mont. 39 Mining Code of the Mexican Repuii... 602 Morea Coal Breaker, Penna. 376, 198 N. S. Wales Mineral Production. 82 Observatory at Columbia College. 84 Mining in Colombia.•..52, 171, 4ll Moreland’s Anialgamator and Ore New South Wales. Opals in.668 Occidental Cons. Mg. Co., 40, 64, 135, Mining Cos., Reports Required. 217 Concentrator. 83 N. S. Wales’ '^' calth and Progress_146 160, -JlW, 474, 543, 6C7 Mining Congress, Helena, Mont. 18 Morgan. Joseph P.492 Newton Coal Alg. Co .. 280 Occidental Alill, Virginia City, Nev.. ‘251 Mining Congress, National.60. 88, 516 Morgan’s Overhead Traveling Crane. o9 New Vancouver Coal,Land & Alg. Co. 17 Oehrles’ Machine for Making Cement Mining Congress. Salt Lake.88, 516 Morning Mine, Idaho .512 New Y’ork Central Coal Contracts ... 67 Pipes. 107 Mining Decisions of Importance. 178 Morning Star Mine, Utah.305 New York Central Coal TrafHc. 3u7 Ogden Iron Alines, Utah. 88 Mining, Deep, in Victoria.‘219 Morning Star Mining Co., 11, 227, ‘230, New York Central. New Locomotive. 325 Ogden Oil & Coke Co. 88 Mining Ditch, Tunneling Under. 443 ;'46. 142, 538. 565 New York Chance Alg. Co. 14 Ogema Alg. Co.113, ‘233 Mining Drills and Stamps, Operating Morse, Harvey B. 444 New York Chemical and Mineral Ohio Geological Survey. 304 Gross' Patent. 347 Morse. J. C .3oi Markets.Weekly Onia Iron Co.212, 301, 348, 444 Mi.iing Employer, Duly of. 275 Mon gages. Gold Clause in.625 New Y’ork ility Bolt and Nut Co ... ‘20 Ohio Iron Alg. Co.350, 374 Mining hn^ineers' Ins Meeting.6, 368 Morwood Tin Plate Mfg. Co.468 New York Iron Mg. Co.36, 393, 544 Ohio Aline Inspector, Report. 166 Mining Engineers’Institute, Plan of.. 601 Moses, Prof. Bernard. 276 New York Aletal Exchange.414 Ohio Mine, New Mexico.400 Mining Explosives. New. 415 Mother Lode Mine, Colo. 542 New York Alining Stock Alarket. VVeekly Ohio Mg. & Milling Co.614 Mining, Foreign, in China. 76 Alother Lade Mg. Co. 614 New York & New Jersey Bridge. 108 Ohio Oil Wells.327 Mining Industries and the Presiden¬ Motulina Mg. Co., Mex.’281 New York Rapid Transit .492, 629 Ohio & Pennsylvania Coal Co.591 tial Election. 457 Moton, JohnK— 5i0 New York, Canal Closing.361 Ohio River Coal Shipmenis. 91 Mining Industry. Nova Scotia.3s5 M'lulton Mine, S. Dak. ‘255 New Zealand, Bonus for Lon Making T29 Oil, Amend & .Vlacy’s Patent Pro¬ Mining InS'itute, Illinois. 4‘35 Moulton Mg. Co_39. 375, 495, 522, 538, 638 New Zealand, Chrome Iron in.393 cess of Desulphurizing. 156 Mining Iron Ores and Filling in Minn. 9 Mountain Chief Mine. Idaho .470 New Zealand, Smelting Iron Sand_376 Oil Certificates, Pip© Line.Weekly Mining Investments. English, in Mountain Chief Mines, Utah.328 Niagara Falls Trunk Tunnel, Bids on 556 Oil Discoveries, Hilliard. vVyoming.. 65 Mexico.313 Mountain Goat Mg. Co . 350 Niagara Falls Tunnel.56, 146, 556 Oil Discovery. Indian Territory. 11 Mining Laws of Colombia. 219 Mountain Iron Mines, Mien.444 Niagara Mine, Mont. 543 Oil Discovery, Marin Co., Cal.302 Mining Law in Equador.610 Mountain Lion Mining Co. 230 Niagara Mines, Utah .640 Oil Dist., Pittsburgh.400 Mining Law, New, in Mexico.,.88, 47.3, 602 Mountain Queen Mill. Idaho..518 Niagara Mg. and Smelting Co.376 Oil Engines in Mines. 268 Mining Laws, New, in Spain.137,115 Mountain Queen Mine, Utah.305,319 Nibclius, Method of Separating Oil Engine, Priestman, in America... 81 Mining Lease and Assessments.‘275 Mountain Key Mills, New Mex.*208 Grapbite..515 Oil Exports.592 Mining Leases in Nova Scotia.2o9 Mou.itain Key Mine, New Mexico .. 88 Nicaragua, Metric System in.60. 540 Oil Field, Indiana. 4.0 Mining Locaiion and Reservoir Site . 5M Moyle. Capt. J. H. 321 Nic iragua Canal. 371 Oil Production, Penna.280 Mining Loconiotive,Gen.Electric Co.* 583 Mount Bischoff Tin Mg. Co. 305 Nicaragua, Weights and Measures.60, 54o Oil Prod, from Shale in Scotland.320 Mining Locomotives, Electric Co. 321 Mount Diablo Mining Co., 15, 40, 87, lOii. NiCiiols, T. D. o4 Oil, Russian, in India. 329 Mining Laws of Colombia. 213 135, 231, m. 327, 351, 375, :393, 516. .591, 6.38 Nichols, Francis B...516 Oil, Sumatra. 149 Mining Machine. Syler’s Patent.156 Mount Etna, Sicilv, Eruption of. 129 Nicael Analysis. 510 Oil Stc.imer in the Suez canal. 132 Mining .Machine. L^hners Patent... 3i7 Mount Powell Mine, Mont. 131 NicKel, Canadian, Royalty on.244 Oil Trade, Scottish.371 Mining in Manchuria, China. 97 Muddy Group Mine, Idaho_38,303,398 Nicitel Carbonyl, Uxidation of.604 Oil Wells in Kentucky.5ii3 Mining and Metallurgy in Amcrici... 529 Mudie’s Amalgamator* . 415 Nickel an.i Cobalt in New Caledonia. 257 Oil Wells, Onio.327 Mining Operations on the Comstock, Mukaion Manpanene Steel ..387 Nickel, Detection of Cobalt in . 59 Uii Well Packing, Infringement of E irly . 152 Munleman.M. L., In ernational Mone¬ Nic.iel in Iowa . 565 Patent. 490 Miniug Operations, Local Conditions tary dealing House. .555 Nickel and Iron, Galvano-plating Oil Wells, Humboldt Co., Cal . I8i in.50, 147 Muldoon Mine. Utah.376 with. 201 Oil Wells, Penna . 232, 418 Mining in i he Pyrenees.321 Munktell, Gold Extracting Process in Nickel Alarket . Weekly Oil Wells. Pumps for. Allin’s Patent.. 179 Mining Regulations, New, in Mexico. 361 Hungary. 203 Nickel Matte, Manhes’ Patent, Proc¬ Oil Wells. Valve for, Jones’ Patent... 156 Mining Regulations, New, of the Munroe, Prof. Chas. E.396 ess of Treating. 83 Okanogan District, Wash.418 Transvaal.361 Miirday's Firedamp Detector*.491 Nickel, Aletnod of Treating Minerals Olcott, Eben E.468 Mining 8>tock Ass’n and the Consoli¬ Murray, William .612 Cimtainiog.466 Olcott, E. E. 157, 276 dated California & Va. Mine.411 .Myers’ Mining Machine.203 Nickel, Method of Treating Minerals Old Ane Mine. New Mexico.. 472,544, 615 Mining Stock, Failure to Issue.113 Mysore Gold Mine, India. 289 Containing, Coppet’s Patent..419,515 Old Dixon Mine, Utah. 400 Il^DEX XI

Old Dominion Copper Mg. Co., 85, 182, 252 Patent Law, French. 81 Phosphate Rock, Process of Washing, Presidential Election and Mining In¬ Old Dominion Mine, Wash.— 473 ‘ Patent Oftice Exhibit, World’s Fair.. 12 Rose’s Parent.467 dustries. 457 Oldham Gold Mining Co. 257 , Patent Protection. 339 ' Phosphate, S. Carolina. 568 Presidio Mg. Co.330 Old Jordan Mg. C<>. 421 Patents Granted.Weekly Phosiihoric Acid of Bone Meal.395 Pneumatic Tool, Drawbaugb's Pat¬ Old ^'cotia Mine, Utah. 61 Patio Process and Scorificatiou As* Phosphoric Acid, Estimation of.49!) ent.323 Oliver Iron and Steel Co . 561 says.291 Phosphorus, Determination in Iron Pribram Mine Fire. 1‘22 Oliver’s smelling Furnace. 158 Patio Process with Silver Ores. 33 and S eel.320 Piibram Mines and Mills, Bohemia,* Omaha & Grant .Smelting Co. 497 Patterson Estate, New Mexico.351 Pbospborus, Electric Manufacture of. 178 5, 28, 52 Olney, H. A . 372 Patton, Dr. Horace B.276 Phosphorus Determinations, Mechan¬ Price, Col. John A. 132 Omaha Mining Co. 11 Patton, VV. H. 157 ical Stirrer for. 9 Priest Lake Dist., Idaho.230, 350 Omiak Gold and Silver Mining Co.... 205 Paul, A. B., Cyanide Solution . 159 Phosphorua, Manufacture of. 56 Priest man Oil Engine In America.... M Ontario Mg. Bureau Uepoit. 497 Pavement, Brick, Cost of. .556 Photographic Telescope at Harvard Prince Edward Island Tunnel, 127, 275, 555 Ontario Mg. Association. 324 Pawnolos Mining C i.1.59, 252 Uniiersity. 320 Projectiles of Chrume Steel. 633 Ontario Mg. Co., 11, 135, 18>. 281, 227, Paymaster Mine, Mont.207 Photography, Color, Heliochromo- Promontorio Mines, Mexico.478, 498 316, 422, 442, 472, 521, Paystone Mining and Milling Co. 11 seope for.515 Prospect Mine, Mont. i;i5 Ontario Natural Gas. Paxman Mine, Utah.328 Phys cal Training in Lawrence Scien¬ Prospectors, Hope for.606 Ontario Silver Mg. Co., 53. 90, 186. 306. Peacock Mine, New Mexico. 181 tific School.193 Prospecting Drill, Ball’s Patent. 59 101, 481, 568, Peacock & Thomas Furnace.201 Pierce, James A. 60 Prospecting Enterprise on the Corn- Onyx Discovery on Salt Lake. Pearls, Discolored, Treatment of. 271 Pierce, Butier & Pierce Mfg. Co.301 stock. 463 tinyx Mine, l*uebla, Mex . Pearce, Frank .276 Pick, Woods Steel*. 413 Prospectors, Chances in Spanish Onyx Mine, Los Tyles, Mex.. P arce, Richard. .588 Pig Iron Contracts, Large. 427 America ...505 Onyx Mines. Mexico.484, Pearce’s Ore Roasting Furnace.635 Pig Iron, Decreasing Stock. 379 Prosser. Chas. S. 180 Ooregum Gold Mine, India. Pearse, Arthur L. 1.57 Pig Iron, Grading. 368 Public Order and Labor Troubles. 242 Opals, Idaho.269, Peary, Lieut. R. E.276 Pig Iron, Outlook for. .385 Public Works, Eikht Hours’ Day on . 132 Opals, New South Wales . Peary Relief Expedition. 12 Pig Iron Prod , U. S., F'irst Half 1892. Puddling and Steel Making. Theory of 510 Open Hearth Furnace, Tipping*. Pease’s Melting Pot .371 83,155 Puget Sound Reiiuciion Co. I'5 Ophir District, Cal. Peat in the Blast Fuinace.616 Pig Iron Shipments from the South.. 499 Pulverizer, American Bull*.247 Ophir Hill .Mg. Co .417, Peat as Fuel. 627 Pike Mg. Co.422 Pulverizer, Smith’s Patent.203 Ophir Mg. Cj.277, 471, 472. 587, Peck’s Centrifugal Oro Separator_443 Pilot Boy Smelter, British Columbia.. 3‘28 Pump, Elevating .388 Orcas Island, VVashingion . Peck’s Process for .Separating Finely Pilgrim Mine, Idaho. ‘230 Pump, Gould’s Triplex Electric*__ 19 Orchard Vein Colliery, Ha. Divided Particles. 107,131 Pilgrim’s Progress Mine, Mont. 160 Pump. Hydraulic Mg.. Foley’s Patent 323 Ore Car, Huntington’s Patent. Pecos River Budge .612 Pine Creek Mine. Idaho. 63 Pump and Motor, Henderson Com¬ Ore Concentrating Belts, Coming's Pechin, Ed mu id C . ‘228 Pine Forest Colliery, Penna. 41 bined*.130 Support for. Patent. Pechin. E. C., Virginia Oriskany Ores, 150 Pine Hill Gold Deposit-. Cal.37, 610 Pump for Oil Wells, Allen’s Patent.. 179 Ore Concentrator, Frazer’s Patent ... Pedder's Furnace for Treating Steel.. 317 Pine M unt«in Iron & Coal Co. 511 Pumping Plant, Electric*. 317 Ore Concentration Tillie Foster Mine. Peele, Robert, Jr. 81 Pine Ridge Colliery. 520 Pump. Wonhington Mine*. 155 Ore Concentrator, Bower's Patent_ Peerless Mg Co. 636 Plno-Altos Dist., New Mexico.87, 544, 567 Pump. Worthington staiion.157 Ore Concentrator. Device for Operat¬ Pelican Mines. New Mexico. 255 Pioche Cons. Mg. Co., 40, 160, 208, 251, 375 Punching Flange Plates, Machine for, ing Seymour's Patent. Pell Lead and Feldspar Mine, III.470 Pioneer F''urnace. Mich.134,159 Henry C. Jones’ Patent. . 11 Ore Cencentrator, Hockley’s Patent.. Pelton Water Wheel Co. 415 Pipe-fitting Tool* . 105 Punching Sieel Plates, Injury Caused. 347 Ore Concentrator, Gonzalez's Patent. Pend d’Orellle District, Idaho. 63 Pipe Line Cei tificates. Prices_Weekly Puritan Mine. Mont.. 39, ISO, 3J6, 422, 614 Ore Concentrator, Hicka’ Patent. Pend d’Oreille .Mg. and Milling Co.... 3.50 Pipe Lino Project in Persia. 58 Pyramid Si'ver Mg. Co.181,567 Ore Concentrator, Husemann’s Pat¬ Penfield’s Brick Kiln. 179 Pipes, Loss of Head, by Friction in.. 536 Pyridin Basis in Russian Petroleum.. 159 ent. Peninsula Copper M. Co , 38, 110, 422, 5M Pipe 'Vise, the Climax*. 11 I’yrites, Cooper and Nickel, Process Ore Concentrator. McKany’s Patent. Penn Iron Co. 14, 36, 110, 207. 229 518 Pittsburg Coal Shipments.Weekly of Treating, Strap’s Patent. 347 Ore Concentrator, .stanhope’s Patent. Penn Iron Works. 180 Pittsburg Coal Miners’ Strike, 45.3, Pyrites, Croton Iron Mines. 10 Ore Concentrator. Walker’s Patent . Penn Mills Co.451 496, 615, 615 Pyrites, Roasted, Manufacture of Ores Containing Sesquioxide of Iron, Penna. R. R. Coal Lands ....376,400, 421 Pittsburg Iron Market.Weekly Ferric Salts irom.251 Jones’ Patent Process of Treating.. Pennsylvania Cml Co . 112 Pittsburg Iron & Steel En’g Co. 61 Pyrites Deposits, Newfoundland.467 Ore Deposits, Newman Hill, Colo. Pennsylvania Oil Wells .. . 418 Pittsburg & Lake Angeline Iron Co... 350 Pyrenees, Mg. in.321 Ore Dock. Conneaiit, Ohio*. Pennsylx'ania Mine, Colo. 277 Pittsburg & Michoacan Mining Co... 425 Pyrometer, Wyborgh’s Air*.368.389 Oie Dressing Tables at Salzburg*. Penna. R. R. Coal Shipments . 259 Pittsburg Mine, Arizona. 230 Pyrophoric Pioperties of Manganese. 152 Ore t:;xport8. Spanish. Pennsylvania P. R. Coniract for New Pittsburg Minitig & Milling Co. ‘206 Ore Feeder, Liugford’s Patent. Station in Pbiladelpliia. Ill Pittsburg Natural Gas Fields, Geol¬ Ore Pulverizer. Stuart’s Patent. Penna. R. R. Componn 1 Locomotives. 84 ogy of. 106 Q Ore Koas'.ing Furnace. Pierce’s Pat.. Penna. B. R. Experiments Steel Ties. 60 Pittsburg River Coal Mines. 424 Q. & C. Car Mover*. 587 Ores, Complex, Process of Reduction, Pennsylvania Railroad. 415 Pittsburg Stock Quotations.Weekly Quartzburg Dist., Idaho. 349 Wetherill’s Patent. Pennsylvania K. R., lOO-lb. Rail*. 105 Pittsburg & Wheeling Coal Co.639 Quartz Cru-her, Anderson’s Patent.. 153 Ore Sep'irator and Amalgamator, Pennsylvania, Report on Geology of.. 98 Placa Mine, Hisiory of. 385 Quartz Hill District, Cal. 205 Holt’s Patent. Pennsylvania R. R. Signals.397 Placer Claim, Patent for . H Quartz, Volatilization of. 490 Ore Separator, Centrifugal. Peck’s Pennsylvania Steel Co.36, 324, 468 Placer Machine. Reed’s Patent. 635 Quebec Magnetic Sand Deposits. 425 Patent. Pennsylvania Zinc and Iron Co.497 Placer Machines, Jewell’s Patent. 107 Quebec, Mining Association of. 132 Ore Separator, Chase Magnetic’*. Pcnny-in-the-slot Machines in the Placer Mining Claim — Conflicting Quebrada copper Mine, Venezuela... 17 Ore Separator and Concentrator, Car- Biitish PoHOftice. 157 Claims. 33 Queen & Co .636 son’s Patent . Penndil Mine, Mich. 494 Planer, Shepards’ Hand*. 154 Queen of Diamonds Mine, Cal.303 Ore Separator, Magnetic, Edison’s Penobscot Mine, Mont.350, 471 Plate (JIass, Wire Netting in.155 Queen of the Hills Mg. Co. Patent . PenokeeandGogebicCons.Mining Co. 88 Pla'.innm, Australia.568 14. 39. 279. 399, 495, 567 Ore .'eparator, Wienicke's Patent.... Penrose. R. A. F\. Jr. 5S8 Platt, C.. Oxide Films on Iron Wire.. 78 Queen of the Mountain Mine,Mont... 160 Ore Separator, Pneumalic* . Pepper & Regisier. 180 P umas Co., Cal., Mines.491 Queensland Gold Mg.4‘24 Ore Separator, Taylor’s Patent. Penrose, R. A. F'., Iron Deposits of Plumas Mining Co. 11 Queensland Mineral Product, 1891 . . 468 Ores. Notes on Sampling. Arkansas..363 Plummer, John W. 36 Quicksand, Solidifying*.272 Ore Testing Plant at Waverly, N. .1.*. Pentz, A. D., Mechanical Notes ..345, Plymouth Consolidated Gold Mining Quicksilver Exported and Re-im¬ Ore Treating Apuaratus, Muoh’s Pat., 369, 388 Co. 109 ported.3 >7 Ore Concentrator, Dana’s Patent.. .. Percival, George S.132 Plymouth District, Cal. 493 Quicksilver Exports. 68 Organization and Labor.. Perkin, Dr. W. H.1.57 Poadi, V. 12 Quicksilver Furnace, Sulphur Creek, Oriosbec, .1. J. Perry, G. VV., Vermont Minerals. 172 Pocahontas Coal, Va., cost of Mining, Cal. 85 Oro Fino Mg. Co.88, 112, 1.36, Persia. Pine Line Project in. 58 241, 268, 339 Quicksilver Receipts, San Francisco. 68 Orphan Boy Gold Mining Co. Peru, Coal Resources of. 59 Pocahontas Coal Fields, Va..Prod.. 219 Quicksilver Shipments, Calistoga, O "oville District, t.'al. Peru, Petroleum Industry.155 Pocahontas Coal for Wnite Star Line. 19 Cal. 493 Osborn Smelter. Idaho. Peru Mining Co.41, •2i'9 Pocock, F. A., Compressed Air and Quiek.'ilver Statistics. . 3^5 Osceola District, Nevada. Peruvian Mg. Co .209, 30.5 Electricity. 536 (Juilie, Dan de. Carson River Mg. Co. 364 tisceola Mg. Co., 11, 38, 86, 159, '2U6, 326, Peshastin District, Wash.88, 136 Pohle’s Process of Separating Matte Quillo, Dan de. Early (Iperatiuns on 316, Pesquierra, Ignacio. 1.57 from Slag. 4IG the Comstock .80,152 Osgood, M. Peters, Dr. Edward D.540 Polaris Mine, Mont. 15,110, 301, 171 Quille, Dan de. Opening for Prospec¬ Oswego Mg. Co. Pf jrdte, (Jito F.. Vanner Belts. 9 Polar -'ea. New Voyage to. 273 tors. 463 Our&y District. Colo.349, 512, 565, Petroleum Engines. 154 Pole, Exact Point of the . 509 Quincy Mg. Co.. II, 11. 38. 86,90,114, Overland Mining Co . Petroleum Engines in Germany.325 Polk County, la.. Coal Miners’ Strike. 374 159, 207, 231. ‘253, 279, 398, 3.50, 470, 491, 590 Overland Cons, Gold Mg. Co. Peiroleuni Exports. 376 Follok’s Chlorination Process. 11.8 Quien Sabe Mine, New Mex.520 Overman Mg. (to.. 1., 40,61.111,208, Petroleum Exports to Greece. 133 Pollock, William. 84 Quijotoa Mines, Ariz. 158 232. 255. 351, 375. 376, 401, 447, 471, 561, Petroleum, FVench Tax on..541 Polyb.asite and Tennantite at the Owens Lake, Cal ... Petroleum Industry in Canada.127 Mollie Gibson Mine. 83 R Ox'de Films on Iron Wire. Petroleum Industry in Peru. 155 Poole, H., Micbipicoten Copper Oxford Iron Co. Strike. Petroleum, Russian, in Jauan. 228 Mines.. 125, 220 Racine Horizontal Engine*. 323 Oxygen in Glass Manufacture. Petroleum, Russian, Pyridin Basils in 459 Poorman Mg. Co., 11, 86,109, 326, 374, Racing Shells of Aluminum.587 Ozone, Aroaratus for Generating, Petroleum, South Australia. Ii2 447, 195, 591 Radford. Win. H . 414 Sharp’s Patent. Petroleum. Storage of. 83 Poor’s Directory of Railroad Olllcials. 3.39 Radford’s Air Compressor. 131 Petroleum, Sumatra. 4 5 Poor’s Manual of Railroads.97, 146 Radford’s Cintinuous Kiln .371 Petroleum Tank Steamers. 6.3') Popocatepetl Sulphur Deposits, Mex.. 377 Raht. A.. Black and Blister Copper... 171 Petroleum Trust, Russian. PJS Port Arthur Mining School. 17 Rail, 100 Pounds, Penna. R. R.*. 105 Pachuca District, Mexico. 32 Petroleum, Use of, in Locomotives... 326 Portage Lake Smelting Works.614 R iilroad Accidents in lireat Britain.. 276 Pacific Coast Borax Co , 11, 227, 282, Pewabic Iron Mg. Co.134, 614 Porter, H. H.301 Railroad Building in China.176 316, 442. Pfordte. Otto F.276, 396 Porter, H. K. & Co..372 Railroad Coal Contracts, Chicago_ 67 Pacific Gold Mg. Co... .61, 184, 373, 520,639 Pharmacist Mg. Co. 37. 330, 538 Portland Cement, Steam Joints. .462, 6ll Railroad Grant, Mineral Land, 3.3, Pacidc .Mail steamship Co.540 Phillips & Sullivan Mine, Idaho, 86, Portland Ce'nent Tests in Russia_ 101 299 587 Packer C 'lliery, Penna. .. 592 253, 303, 421 Post Office, British, Penny in the- Railroad Lighted by Electricity.! 412 Paddock Pneumatic Ore Separator*.. 130 Philosophical Society of Washington.. 98 Slot Machines in. 157 Railroad Ufflcials. Directory of.3.39 Page, Horace S. O') Philadelphia Gas Co. 400 Potassium Salts in Prussia.222 Railroads ot Great Britain..322 P.iinler, Sons & Co. 276 Philadelphia Iron Market— . Weekly Potomac Valley Railroad . 139 Railroad Speed, High.5^ Paint, Process of Producing from Phila. & Reading t'oal and Iron Co.. Potosi, Bolivia, Fossil Plants from... lo Railroads of i he South. ,55 Ore. Smith & Berdiwig’s Patent_419 16, 161, '232, 231, 352,376, 400, 118,496, Potosi Mg. Co.40, 87, 301, 399, 593 Railroads of the U. S.98, 146 Palen, Dr. E. G.3l8 514 . 592, 639 Potter, A.‘276 Railroads of the World.511 Palgrave Gold Mining Co .161 Philadelphia & Reading Cor,l Reports 114 Potter. John A.396 Rails, Steel, Costand Selling Price.... 73 Palladi jm. Atomic Weight of. loi Philadelubia & Reading Lease of the Potter’s Machine for Cutting Flanged Rails. Steel. Large Coniract..619 Palmarejo .Mine, Mexico_49, 65, 169, 410 New Jersey Central. 19 Beams .. 467 Rainbow Mine, Cal. 205 Palmer. ('. E.513 PhiU. Read., & New England.90, 332 Potter’s Rolling Mill.II, I67 Rainbow Mining Co . 161 Palo Alto Mines, Cal. ‘277 Phila. & Reading R. R.9(i, 568, 588, 615 Pottstown Iron Co.541, 561, 588 Rains in Northern Mexico. 328 Pamelee, E. D. 468 Pbila. Water-Works, Filtering Plant. 36 Portstown Iron Co., Basic Besse-fer Raleigh’s Balanced Cam for Stamp Panama Canal.132, 148, 291, 467, 481 Phillips, W. B., Nitrogen and Water. 211 Steel Plant.438, 164, 488 Batteries*. 107 Panama Canal, Hydraulic Mining_291 Phillips, W. B., Southern Iron Indus¬ Pottsville Iron & >teel Co. 36 Ralph Mining Co.86,253,280. 371 Panama Gold Mines. 377 try.30, .54 Poughkeepsie Bridge Sale.187 Ralph Mining Pool Co. 2.53 Pin-American Mg. Co. lOl Phoenix Bridge Co.372 Poulin Mine, Mont.6'(8 Rand Drill Co..ISO Pandora Mining Co. 11 Pi oenix Iron Works. 192,588,612 Pourtales, Count.444 Rindolpb, J. C. F.;.468 Paris Coal Consumption.58> Phoenix & Mmcop.a Railroad. .5S5 Powder, The Fort is.202 Rapid C'ty Dist.ict. S. Dak.16.112 Parish. T. C .411 Phoenix Mg. Co.61. 136. 210, 468, 517 Poweltnn & Pocahontas Railroad.... 63 Rapid River Mg. Co . .542 Paris Underground Railroad. 156 Phosphate Beds M jltese I’ds*.200 PoA'er. Measurement of.122, 243 Rapid City. S. Dak. Chlorination V\ ks 400 P iris Stock Quotations.Weekly Pnosphate Go. of France. 38 Power Transmission. 13 Rapid Transit in New York.492. 629 Park Rsgion Mg. Co . 701 Phosphate Mines. Fiorida.38, 319 Power Transmission, Electric. 130 Rats in the Comstock viines.399 Parker, M. S., Black Eagle Falls Dam, 343 Phosphate Hock Treating, Hughes & Power Transmission, Electric, in Rattler Silver Mine. Was*!.232, 328 Parker. R. A..Cinadian Iron Fields . ,'>61 Chisolm’s Patent.317 Colorado*. 79 Raunheim, S. E., Butte City. Mon... 291 Parrot Mg. Co. 11. 227, 230, 346, 442, 147, 538 Phosphate Rock Dryer, Chisolm’s Pa¬ Power I ransmission by Rope*. .58 Raunheira, S. E., Notes on Copper Parsons. Percival M. 516 tent. 131 Pratt & Whitney Co . 564 Market .48i. 506 Pascoe. Grenfell & Co.396, 516 Phosphate Rock, Hydraullcking in Premier Steel Works. 12 Rawson’s Hydraulic Mining Method.. 539 Past Mg. Co. . 637 Florida. 347 Prentiss Engine Lathe*. 345 i Rawlins Gold Fields. VVis.256 Patent Law, Austria.486 Phosphate Shipments from Charleston 65 Preservation of Stone, Coatings for.. 28 I Raymond & Ely Mg. Co.471 0

Raymond, R. W., Gems of N.America. 555 Roofing Slates, Strength and Weath¬ Sargent, S. W. 564 Silver City Dist., New Mexico. 40, 87, Raymond, «. V\'., Labor Question..50, ering of.298 Sault Ste. Marie Canal. 564 136, 184, 255, 400, 520, 567 117, 169, 193. 218, 242, 266, 293, 314, 362, Rope Power Transmission, Pulleys*... 58 Sault Ste. Marie Canal, Coal Paseing, Silver City & Northern Railroad.2f5 458, 482 Ropes, Breaking, in Mines. 131 283, 501, 57-2, 619 Silver Coinage, Free, Defeated. 25 Raymond. R. W.. Jjhn Fritz.337 Ropes Gold Mg. Co... .38, 109, 182, 303, Saunders, F. K .324 Silver Coinage in India. 284 Raymond, Win. G. 36 398, 614, 627 Savage Mg. Co.. 40. 87, 111, 135, 160,183, Silver Commission, Problems for.218 Raynolds. C. T. & Co. 89 Root, W, H.. New Wyoming Clay... . 51 184, 208, 232, 255, 280, 304, 327, 351. 375, Silver Conf* rence. Failure of .631 Reading Coal Combination, 210, 258. Rose, T. B , Fineness of Gold Bars_603 399, 401, 423, 471. 493, 519, 544, 591, 615, 639 Silver Conference, French Delegates 378 332, 356, 500 Rose. T. B., Gold in Dilute Solutions. 6u3 Savage lunnel Mining Co. 16 Silver Conference, International, 121, Reading Rolling Mill Co.414 Rose’s Process for Washing Phos¬ Sawall, Alex, H. ... .36 140. 145, 218, 236, 241, 3:4. 378, 402, 450, Real Del Monte Mg. Co. 473 phate Rock.467 Saw Mill, Chandler & Taylor*. 417 523, 5.30, 546, 594, 601. 617, 642 Ream Mines. Consolidated Co. . 420 Ross Camp Mines, Utah. 41 Saw Set. Tainlor Improved*.225 Silver Conference, International, Recarburizing Metals, Koneraan’s Ross Coal Vein, Pa. 327 Saxon Export Union. 228 Delegates. 145 Method of.443 Ross, M. Denman. 301 Schaeffer. John . 60 Silver Convention at El Paso. 579 Receiver of Coal Mining Companies— Rossi’s Process of Reducing Titanifer- SchafTs Drying Stove for Bricks.323 Silver Copper Ore in Mont . 481 Certificates.59 Iron Ores. 539 Schermerhorn, C. H .318 Sliver Cord Comb. Mine, Cal.11, 303 Reciprocity and South American Ross’ Process of Making Salicylalde Schillo’s Mining Car. 227 Silver, Cost of Producing. 218 Trade .; 220 byde-alphaphenivimethylhydrazono 347 Schnabel, C., Argentiferous Zinc Silver Creek Dist., Nevada.639 Reciprocity Treaty with Colombia— 414 Rothshoenberger Tunnel . ‘201 Lead Sulphides.269,‘295 Silver Exports, Mexican, through Recompense Mine, MonL. 279 Roth well, John E. ‘z76 Schneider, Edward A.. 18" New York.474 Red Hird Mine, Colo. 159 Roth well, R. J., Silver Problem Solu¬ Schoen Mfg. Co.468 Silver Field, Barrier Range, Aus¬ Red Cloud Mg. Co., 109.134. >27. 316. 412. 5.38 tion..530 Schorlemmer, Dr. Carl. 60 tralia. 340 Red Elephant Mine. Idaho, 14, 182, 319, 637 Rouebleau Iron Mg. Co . 350 Schuckert Electric Light. 444 Silver Glance Mining Co. 15 Red Head Mining Co. 517 Rowena Mining Co. 181 Schuttler’s Track Drill*. 371 Silver and Gold Exports and Imports, Red Jacket Mg. Co.16. 326. 566 Howland Mine. Mont . 110 Schuylkill Coal Exchange. 16, 352, 448. .544 Weekly Red Lien District, Mont.87, 254 Rowlands’ Ammonia Distiller. 59 Schwab, Cbas. M.396, 444 Silver and Gold (.ires. Cyanide Proc¬ Redman's MeltingFurnaca.635 Roumanian State Railroads.5il Schwartz Dynamite Mill.564 ess. 291 Red Mountain Camp, Colo. 181 Rourke’s Sm'Ring Plant. 419 Schwers, Capt. John A. 612 Silver and Gold Production..35, 442 Red Mountain Miiling Co. 279 Royal Gold Mg. Co.. 63, 134, 183. 231, Science and Labor. 2M Silver and Gold Production in the Red River Placer Mg. Co, 376, 398, 47 , 590 400, 422, 471 Scotia Mine. Colo.517 United States for 1891. 35 Reducing Metal, Blackmore’s Patent Rubber Combination.445 Scotland, Iron Industry.436 Silver and Gold Production in the Process for. 59 Ruble’s Centrifugal Blower.587 Scorer's Apparatus for Treating World. 1I-91. 35 Reduction Wks., Bos. & Montana Co. 507 Ruby Basin Disrrict. S. Dak.424 Refuse of Cities.227 Silver, Government Purchases... Weekly Reduction W'orks. Losses at. 361 Ruby Hill Tunnel Co.375 Scorifleation Assays and the Patio Silver Hill Mg. Co.327, 351, 376 Reed, C. J., Dipping of Magnetic Ruby King Mg. Co. 542 Process. . 291 Silver King Mine. British Columbia.. 545 Needle. 99 Ruby Mines, Burmah. 112 Scott, John. .. 157 Silver King Mine, Idaho.. .134, 182, 446, 518 Reed Mines, Cons. Co. 637 Ruby Mines, Mont. 280, 567 Scott's Method of Weldirg fMetal Silver King Mg. Co., 136, 161,181. 277. Reed’s Placer Machine.6,35 Ruby Mine. Wash. 3)’2, 376 349, 373, 401, 516 R'^ese. Wm . 132 Ruby Mg. Co. 183. 424. 567 Scottish Oil Trade. 371 Silver King Mines, Ariz. 363 Refractory Ores, Process of Treating. 539 Running Lode Mg. Co. 11,589 Scraper, Adjustable, tor Roller Mills, Silver Lead Ore, Tariff on. 267, 333 Refuse of Cities Apparatus for Treat¬ Rushforth, Wm. Henry . 204 Harvey’s Patent.227 Silver Lead Ores, Containing Zinc, ing. Scorer’s Patent.227 Rush Run Colliery, Penna . 615 Screen for Metallic Fumes, lies’ Hunicke Process.606 Regulator for Steam Generator Fur- Russell Process vs. Amalgamation. 580 Patent.467 Silver Lick Cons. Mg. Co. 474 nices*. 58 Russell Process for Treating Silver Screw Pitch Gauge*. 508 Silver Lode Mines, Utah. 232 Reid Mines, Cons. Co.512 Ores. 289, 578 Scudder, Sami. H . 180 Silver Mines, Sicily.641 Reid, Prof H. F. 348 Russell,W. W.,Canadian Iron Fields. 627 Scurbby's Apparatus for Purifying Silver Mines, 'I'ransvaal. 370 R. E. Lee Mine, Colo..470 Russia, Cobalt . 33 Sewage. 419 Sliver Mountain Mg. Co.113. 470 Reno, Nevada, Reduction Works..81, 251 Russia, Coal Fields, Mining.344 Seabury-Calkins Mg. Co., 16, 61, 183. Silver Ore, Comstock, Early Attempts Repairing a Broken Fly WheeP. 127 Russia, Gold Mines.293 31)4, 400. 424, 568 at Working. 80 Repairs of .Machinery. ‘’‘■ Russia, Gold Purchases. 19 Searles, B., El Callao Mine.172 Silver Ores, Patio Process. 33 Reproducing Drawings in Black Ru-^sia, Manganese Mines. 129 Sea 'Water, Action on Portland Ce¬ Sliver Ores, Process of Smelting, Print . Russia, Mineral Proluc ioa. 274 ment . 77 James’Patent.347 Republic Iron Mining Co. Russia, Additions tu Navy.511 Sebastine, Anarchist’s Explosive. 33 Silver Ores, Russell Process.,57^ 580 Ilescue Mining Co. Russia, Oil Sbipmtnts t i India.329 Second Avenue Line, N. Y., Storage Silver Ore 'Treatment by Russell Proc¬ Reservoir Site and Mining Location.. 563 Russia Oil Shipments to Japan.228 Battery Cars on. 60 ess and by Amalgamation .580 Retribution Mines. Utah .305 Russia, Petroleum Trust . 123 Secret Indian District, Ariz. 158 Silver. Our Future Policy... 601 Revenue Mine. Montana. 63 Russia,Portland i emeLt Regulations, 101 Seek-No-Further Mine, Colo. 14, 230 Silver Peak Dist., Nevada. 519 Revenue Tunnel, Colo . 38 Russia, Scarcity of Coal in.. 541 Seeley, Prof. Cbas. A. 468 Silver Point Tunnel, Colo. 62 Reymerr. Mine, Ariz.181, 2.52 Ryder, \V illiam E. 324 Seepage Water, Drifts to Catch. 607 Silver, Prices of.Weekly Reynolds’ Coal Cutter .227 Segregated Belcher Mg. Co., 87, 375, Silver Problem, 291, 337, 434, 43.5. 459, Rheostat. Carpenter’s Patent. 227 534, 567 .530, 553, 670, 577, 593. 618 Rhode Island Gold Mining Co. 2.57 Seilliere, Baron Roger. 228 Silver Purchases, Austrian. 284 Rhodes. Robert D . 84 Seismological Society of Japan. 180 Silver Purchases, Government....Weekly Rialto Mining Co. 11 Sabinal Mg. Co., Mex. . 281 Selecting Workmen. 345 Silver Production, Montana. 39 Rice. E. W.. Jr. 180 -aginaw Iron Mines. Mich.455. 614 Self, P., Jr. 36 Silver Queen District, W^ashington.... 88 Rico-Aspen & Enterprise Mining Suit 634 Sahlin, Axel, Iron Ore Granulation. .8, 99 Sensation Mines, Utah. 400 Silver Queen Mg. Co.374 Rico-Aspen Cons. Mg. Co..’277, 469, 613, 631 Sahlin, Axel, Talc Industry.368 Separating Apparatus, Howe’s Pat¬ Silver Smelting Works in Tasmania*.. 222 Richards, Paul . . — 414 St. Bel Pyrites Mine, Fr.ince .401 ent . 59 Sliver Spar Mine, Utah. 376 Richards' Solder for Aluminum. .59 St. Bernard Coal Co.42-2 Separating Particles of Different De¬ Silver Stocks Increasing. 378 Rich Cache Mining Co. 281 St. Gaudens, Augustus .444 grees of Specific Gravity, Pick’s Silverlon Coal Co. 64 Rich Gulch Alg. Co . 589 St. John’s Mg Cj.•208, 256, 277, 327 Patent Process.107, 131 Silver Vault, Idaho. 374 Richmond Cons. Mg- Co.423, 495 St. Louis Mg. Co.253 Separator, Hoffman Magnetic..26, 99 Simonton’s Machine for Extracting Richmond & Danville Railroad. 12 St. Louis, Engineers’Club o'.324, 588 Sequachee Valley Coal and Coke Co.. 400 Gold from Ores. 59 Richmond District, Utah. 16 St. I.ouis Smelting and Refining Co.. 108 Serpollel’s Generator for Vaporizing Simplon Tunnel. 215 Richmond-Sitting Bull Mg. Co ..568 St. Louis Stamping Co.372 Liquids. 156 Sinclair, James. 36 Rich Patch Iron Co. 497 ®t. Louis Stock Quota! ions.Weekly Seven Devils Mine. Idaho...398, 421 Singapore, Gas Contract lu. 540 Rickard, T. A..157 St.. Petersburg, New Bridge.129 Seven Stars Gold Mg. Co., 325, 341, 386, 415 Sintbrop Iron Co. 543 Rickard, T. A.. Cyanide Process.363 Salem Iron Co. 352 Seven Stars Mine, Ariz.*.341 Sioux Mining Co.41, 88 Rickard. T. A., Stamp Milling .632 Salicvlaldehyde - alphaphenlymethyl - Sevier Mg. Co.521 Sirius Mine, Montana. 39 Rickard, T. A., Variations in Milling hydrazone. Process of Making, Ross’ SewagePurifyingApparalus Scurby’s Skyrme, Wm. 252 Gold Ores. 193, 222, 245, 534, 5.58 Patent. 347 Patent. 419 Slag Pots for Lead Smelting*. 630 Ricketts & Banks . 612 Salicylate of P. enyl. Process for Seymour’s Device for Operating Ors Slag Separator, Keiper’s Patent. 419 Ridge Copper Mine. Mich. 122 Making, Ernest’s Patent. 515 Concentrators. .563 Slag, Utilizing Waste Heat of. 57 Rio Tinto Copper Mines, Spain .. 42 >, 641 Sali3bur.v. Prof. B. E . 157 Seymour’s Process of Reducing 'Vola¬ Slate Shaving Machine, Kurtz’s Pat., 419 Ritchie’s Azimuth Circle. . 227 Salmon City District, Idaho . .14,131, 494 tilized Metals. .539 Slates, Roofing, Strength and Weath¬ River and Hartior Improvements.321 Salmon Mine, Mont. 422 Shafting Stand for High Speed En¬ ering of. 298 Road Exhibit at Chicago. 50 Salmon River Dist., Cal. 469 gines*. 3®9 Slide Mine, Colo. 325 Roadman's Electric Manufacture of Saliburg Coal Co. 568 Shale Ore Production in Scotland.3’20 Slide Rule, A New. iai Phosphorus. 178 Salt Hill Tunnel. Mont.304 Shannon Mine, Idaho . 421 Slide Rule for Blast Furnace Charges, 4b7 Roanoke Iron Co.. Va.229, 497 Salt Lake & Deep Creek Railroad. 640 Sharon. W. E. 396 Slocan District, Briti^h Columbia_256 Roaring Fork Mg. Co. 206 Salt Lake GiUonite Co. 88 Sharpless. F. F. . Sloman Gas Well, Tiffin, 0. 400 Roaring Lion Mine, Utah .256 Salt Lake Onyx Discovery . 2tj9 Sharp’s Apparatus for Generating 276 Sloes Iron & Steel Co. SrJ Robb-Amrsirong Engines*.. 251 Salt Lakes, Southwestern Sibeiia_197 Ozone. .227 .Sloss Iron & Steel Co’s Mines*. 318 Robert E. Lee Mg. Co. 373 Salt Lake v\ bite Lead Works.185 Shasta County, Cal . 109 Sludge Treatment Process, Frasch s Roberts. George B. 12 Salvador, Mint. 498 Shaw_ Mine,iluc, ElEii Doradox-^urciuu Ck)., (3al_^>111.... 487 Patent. 635 Roberts Phosphate Co . 38 Salvador, Treaty with.541 Shaw’s•«SKa«v*a HydraulicixIia Crane.ntsonss 107 Small Hopes Mg. Co., 14, 62, 159,440. Robertson’s Guide Holder for Stamp Samo Mine, Colo.613 Shears, Byron E. . 22S 517, 6.38 Mills.m Sampling Ores, Notes on. IM Sheedy and lies’ Device for Collecting Small Mme, Colo . 230 Robinson District, Colo. 13 Sampson Mine, Utah. 305, 352 Metallic Fumes. 347 Smeed, Col. Eben C.204 Robinson. G. H.. Crawford Mill. 99 San Carlos Mine, Mex .305 Sheet Metal, Process of Scaling, Brit¬ Robinson Gold Mine, S. Africa. 17 Sandia Mining and Smelting Co. 184 ton's Patent. 131 Hobinson Gold Mining Co. ...181.209, 400 San Diego, Cal., Iron Works .252 Sheffield Land, Iron and Coal Co. 132 Robinson. T. W. 492 San Diego, Cal., Red. Works .... 491, 636 Shepard’s Apparatus for Making Robson, John . 60 San Francisco Dredging Co..565 Aluminum.635 Rochester Mg. & Milling Co.3'5 San Francisco Mining Stock Board. Shepard’s Hand Planer*. 1.54 Rock blasting ... . 491 84. 210, 588 Shenandoah Brass Works . 60 Rock Catcher, Veronee’s Patent. 56f San Francisco Mining Stock Market, Sheridan iron Co .86, l^i, 495, 614 Rock Crusher, Kent’s Patent.323 Weekly Sheridan & Mendota Cons. Mg. Co... 565 Rock Crusher, Weller’s Patent. 443 Saniter Process for Elimination of Sbiokle, Harrison & Howard S'eel Rock Drill, Applied to Opening the Sulphur from Iron. 409,556 W'orks. 132 Tapping Hole of a Blast Furnace... 368 San Jacinto Estate, Cal.85, 349, 373, 493 Ship Canal, Lake Erie.549 Rock Drill. Chodgko’8 Patent. 347 San Jacinto Tin Mg. Co. 565 Shippenand Wetberill Coal Leases... 139 Rock Drilling Contest . 207 San Joaquin Valley Mining Co. 62 Ship Transportation. 626 Rock Drill, Hartsog’s Patent. 419 San Juan Bautista Mine. Mex. 65 Shoenberger, Spear & Co.2-29 Rock Drill. Llovd’s Patent. 227 San Juan Gold Fields, Ariz.613 Siberia, Salt Lakes of. 197 Rock Drill, McKieman’s Patent.635 San Juan Gold Mines, Utah .MO Sicily. Sulphur in.5® Rock Drill, Stevens’Patent. 227 San Jn in Mg. Co . 89 Sidney Coal Mines, Cape Breton. 2211 Rock Drill, Sypher’s Patent.467 San Juan Quebradillas Mg. Co.521 Siebert, H.301 Rock Drill, Widman’a Patent. 227 San Pedro Harbor . . 561 Siemens’ Gas Furnace. 515 Rock Ford Coal Co. 11 San Pedro Mines, Monterey, Mex. ... 42 Siemens & Halske Electric Co. 132 Rockliff and Foley’s Hydraulic Mg. San Rafael Mining Co.,Pachuca. Mex. 137 Siemens, Dr. Werner.564 Pump . 323 San Sebastian Gold Mine, Salvador, 425 Sierra Butte Mg. Co.11, 442, 450, 565 Rock Spring Coal Co.112, 281 San Sebastian Gold Mg. Co.546 Sierra Nevada Mg. Co.. 2.54, 280, 351, Rodgers & Clement. 612 Santa Anita Mg. Co.616 374, 496. 544, 591 Roessler’s Process of Desilverizing Santa Eulalia Gold Mg. Co. 425 Signal Mountain District. Nevada_207 Lead.1,56 Santa Fe Copper Co. Reorganization. 195 Signals, Magnesium Light. 130 Rolker,Charles M .108 Santa Geitrude Mine, Mexico. 401 Sis on the Penna. R. R.397 Rolling Mill. John A. Potter’s Patent. H Santa Rosaliadel Carmen Mines,Mex. 41 Treasure Mg. Co.160. 326 Rolling Mill, Potier’s Patent. 467 Santa Rosa Mine, Mexico. 401 Silver, A Hint to the Friends of.. 24 Rolling Mills, Birmingham, Ala.*. % Sapphire and Ruby Co. of Montana . 39 Silver Bell Mine, Mont. 15 Rolling Mill Worker^ Wages.341 Sapphires, Montana.422 Silver Bill Defeated. 49 Rolling Process, McCloud’s *.609 Sardinia, Magnetic Separating Plamt* 77 Silver Bow Co., Montana Mines.399 Rolling Thin Sheet Steel, Lantes’ Pat. 59 Sargent’s Smoke Consumer.2-27 Silver Brook Colliery, Penna .6i5 Rome Rolling Mill Co...,.444 Sargent’s Smoke Preventer*.587 Silver Buliiofi Certificates44 INDEX XIII

South Afi'ican Gold Mines.75, 217 Stem Winder Mg. Co.278. 326, 446, 614. 638 Talmage’s Apparatus for Manufac¬ Tourtelotte Park Dist., Colo.. 42 South African Gold Production_97, 481 Sterling Coal Mines, Pa.376, 568 ture of Carburetted Hydrogen.., — 419 Track Drill, Schuttler’s*.37 South African, MacArthur Forest Sterling Water Tube Boiler*.611 Tamarack, Jr., Mg. Co.. 14, S, 110,134, Trade Dollar Mine, Idaho, 14, 38,86, Process in. 17 Sterrick Creek Coal Co.424 159, 182. 206, 303, 279. 374, 398, 424, 590 159, 350. 494, 61 South African Mining Report, Wit- > Stevens, M., Non-Uniformity of Iron. 558 Tamarack Mg. Co.. 11. 32. 63. 231, 253, Tramways, Wire Rope, for Mines.... 33 watersrand.217,290 Slevenson-Bennett Mg. & Milling Co. 280 330, 374, 442. 446, 566 Trans-Andine Railroad. 15 South American Trade. 133 ' Stevens, Prof. W. Leconte. 36 Tank Steamers for Petroleum.630 Trans-Caucasus, Manganese in. 2 South American Trade and Reci- I Stevens' Rock Drilling Machine ... 227 Tape Level, McCullough’s*. 81 Transportation hy Water.626 procity. 220 I Stewart Mine. Utah.64, 136, 208, 328 Tariff Drawback on Imported Coal.. 348 Transvaal Gold Mines.545 South Australia, Iron Manufacture .. 579 I Stewart Wire Co.516 Tariff, Mexican .541, 602 Transvaal Gold Production. 113 South Australia, Petroleum.112 i Sticht, Robert .396 Tariff on Silver Lead Ore ....267,3^ Transvaal, New Mining Regulations. 361 South Carolina Phosphates..568 Stickney. C. W., Cyanide Process.339 Tasmania, Silver SmeltingWorks in*. 222 1 ransvaal silver Co., B. Africa. 65 South Central Mine, Idaho.86, 253 Stilwell-Bierce & Smith-Vaile Co., Tate, A. Norman. 157 Transvaal Silver Mines.. 370 South Chicago Electric Railroad.132 516, 541 Tatbam, Henry B.372 Treasury Decisions. 442 Southern California Smelting Works. 541 Stilwell-Close Heater*. 227 Tatro'Tunnel, Utah. . 161 Treatment Charges on Ores, Bullion Southern Coal Production. 54 Stockton Coal Breaker, Pa. 88 Taylor, Moses.259 Beck Mine, Utah. 514 Southern Iron Production.. . 54 Stockton Mg & Smelting Co. 88 Taylor’s Grinding Pan.41 < Treats’ Chill for Casting Car Wheels. *^03 Southern Cross Mine, Mont. ■ 134, 279, 543 Stoiber, E. G., Silver Problem.459 Taylor’s Ore Separator.321 Trenton Iron Co. 444 Southern Industrial Progress*... .30, 54 Stokes, E. H . 348 'Tecum seh Iron Co.108, 302 Tresekow Colliery, Penna.. 40o Southern Iron Co.352 Stokes, Henry N.180 Tehuantepec Mexican Railroad.255 Trinitophenol Explosives. 176 Southern Iron. Demand for.643 Stokes, N.W. 12 'Telegraph Lines, German.141 Trinity River Gold Mines, Colo. ‘252 Southern iron. Freight Rates on. 92 Storage Battery Cars in New York, 60, 415 Telegraphs, Great Britain. 61 Trippel, Dr. Alex. 612 Southern Iron Production. 547 Storage Battery Traction in England, 244 Telephone Companies, Census Re¬ Trippel, Dr. A., Cost of Copper Work¬ Souther's Dredging Machine. 11 Stormy Hill Mines, Idaho. 182 port on. 12 ing.123 South Eureka Mg. Co.181, 401 Stone, A Large Dressed. 466 Telephone, Long Distance, Between Tr.une Mine, Wash.376, 473 South Fork Cons. Mg. Co.209, 336 Stone, Coaling for Preservation of.... 28 N. Y. and Chicago.395 Trowbridge. Prof. W. P*. 197, 588 South Galena Mine, Utah.83, 161 Stone Crusher, Booth’s Patent.179 Telephone Patents, Bell.397 Trotz, E., Wiborgh Pyrometer.368 South Homestead Mines, New Mes.. 181 Stone Crusher. Gates’ Patent.635 Telephone Wires, Underground.... 156 Troy Mg. Co.448 South Iron Mine, Mich..1^8 Stone Land, Mineral Land Laws.... 467 Telescope, Photographic, at Harvard Troy Steel and Iron Co. 60 Soulh Joplin Lead & Mg. Co.254 Stone Manufacture, Eurich’s Patent, 515 University. 320 Truess District, Utah. 281 South Mountain District, Idaho.350 Stone Quarry on Homesti‘ad Entry... 443 Telluride DisL, Colo.63, 349 Truro Gold Mg. Co ..545 Spain, American Stoves in. 228 Stone Quarrying, Blasting Process .. 248 Telluride Ore Shipments. Truss for Mining Machines, Bradley’s Spain Iron Ore Exports.133, 317 Stone Quarry Lands, Mining Claims. 443 14, 63, 159, 206, 277, 349, 374, 494,517. 590 Patent. 635 Spain, Metric System in. 299 Stout, Francis A. 84 Temescal Tin Mines .277, 302 Tubes. Elmore’s Mandrels for Electro¬ Spain, New Mining Law in .137, 145 Stoves, American, in Spain.228 Temperature of Blast Furnaces, lytic Deposits, Patent. 467 Spanish American Iron Mg. Co . 233 Stoves in Vienna.324 Autographic Record.344 Tudor Iron Co. 180 Spanish American Mines .505 Stranahan Phosphate Co. 109 Tempering Curved Armor Plate.371 Tungsten Alloys. 610 Spartanburg, S. C., Gold Fields. 52 Strap’s Process of Treating Copper Tennessee Coal. Iron and Railroad Co. Tungsten, Metallic, Method of Pro¬ Spathic Iron Co.541 and Nickel Pyrites .347 185, 208. 330, 42f. 433, 437 ducing. .83 Specific Heat of Aluminum...,.270 Street Cars, Storage Battery, in N. Y. 415 Tennessee Coal Mining Co. 112 Tunnel for Chicago Water-Works_ 13 Speed Alarm Indicator*.154 Street Railroads, American, Manual. 339 Tennessee Geological Survey.628 Tunnel at Niagara. 56 Spelter Market... .Weekly Street Railroads,Ammonia Motors for 204 Tennessee, Lead.491 Tunnel at Niagara Falls.146, 556 Spelter Production, 18)2. 227 Strike, Carnegie Mill.204 Teresa Mg. Co.449 Tunnel, Prince Edward Island, lz7, Spencer Mine, Cal.277 Strike, Coal Miners, Macon Co., Mo. 350 Terry’s Peak Dist., S. Dak.185, 304 275 555 Spencer-Simpson Mines, Colo. 37 Strike, Coal Miners’, Wheeling, W.Va. 41 Tertiary Fossil Plants from Potosi, Tunnel, Rothschoenberger...! ‘202 Sperry, E. A., Electric!^ in Mining.. 100 Strike, Cceur D'Alene Mine. 14, 63, 109, Bolivia. 10 Tunnel, Simplon.202 Sperry's Electric Mine Car. 59 134 139, 182, 350, 398, 494 Tesla’s Experiments on Alternate Tunnel Under Mining Ditch. 443 Spiegeleisen and Manganese. 20 Strike of French Miners. 449 Currents. 98 Tuscarora Diet., Nevada, 6^ 160,170, Spike, Hill’s Curved. 204 Strike at Homestead, 20, 25, 44, 61, 84, Tests of Copper Pipes, U. S. Navy.... 366 ■^20, 254 375 508 Spokane & Coeur D’Alene Mg. Co_326 116, 122, 132. 140, 204, 396, 420 Tevis. Lloyd. 180 Tuscarora, Nev., Bullion Shipments,’ Spokane Gold Fields. Washington_400 Strike in Montreal Nail Factories... 60 Texada Mg. Co.424 Weekly Spon’s Tables and Memoranda for Strike, Pittsburg Coal Miners’. 453 Texas Capital Granite Co .209 Tuscarora, Nev., Union Mill.471 Engineers .459 Strikes, Government Report on.204 Texas Central Mine, New Mexico .. 40 Tutile, J, M.120 Spring Creek District, Utah.232 Strikes and Labor.146 'Texas Cons. Mg. Co.5^, 637 Tuyere, A New.395 Spring Hill Colliery, Nova Scotia.... 616 Stratton Steam Dryer.178 Texas District, New Mexico.208 Two Bears Mine, S. Dak., Ibl, 185, 281, 568 Spring Mountain Tunnel, Pa.496 Structural Geology, Studies in*.390 Texas Geological Survey.98, 339, 603 Twin Brothers Mine, Idaho. 206 Springs and Tires, Chrome Steel for.. 316 Structural Shapes, Right Angles, Ma¬ Texas and Georgia Mines, Colo. 205 Tyler Mg. Co. 86 Spur-Daisy Mg. Co. 62 chine for Cutting Grace’s Patent.. 83 Texas Grahamite Deposits.368 Stamp Batteries, Balanced Cam*...81. 107 Stuart’s Ore Pulverizer. 59 Thacher Rapid Unloader*.561 Stamp Law, Mexican. 228 Sturges, Theodore . 132 Thames Gold Mining District, N. Z*.. 558 u Stamp Milling, Present Status of.... 632 Sturtevant, B. F.. Co.396. 468 Thames River Bridge, New.155 Ullman’s Safety Contact Breaker*... 178 Stamp Mills, Guide Holder for, Rob¬ Sturtevant Mfg. Co.84, 516 Thayer, B. B. 276 ertson’s Patent. 635 Ultra-Marine Blue, Process of Mak¬ Sturtevant Mill . 26 Thayer, B. F.386 ing, Hutiel’s Patent.419 Stamp Shoes and Dies of Chrome Stntz’s Coil Jigger and Washer... .59, 203 Thaw, Wm.. Jr .301 Steel. 435 SucktrDis't Idaho.350 Thermal Expansion of Small Bodies.. 3 Ultra-Marine, Process for Making... 346 Stamps, Preliminary Crushing for... 435 Underground Conduits for Electric Suess. Prof. Edward. 540 Third 'Term Mine, Utah.376 Railroads.248 Stamp, Stamp Power, Marlett’s Suez Canal. Oil Steamers in . 132 Thomas, J. 12 Patent. 156 Undine Mine. Utah. 209, 328 Suffleld & Thompsonville Bridge Co.. 180 Thomas, J., Harney Peak Tin Mines.. 536 Union Cons. Mg. Co.18, 111, 135 Standard Coal Co. 444 Sullivan Creek Hydraulic Mg. Co— 473 Thomas’Patent Coke Oven*. 512 Standard Cons. Mg. Co. 11, 62,158, 181, Union Iron & Steel Co., Youngst’n, O. 61 Sullivan Con. Mg. Co.If, 26 ’Thompson, G. W. 12 Union Iron Wks., San Francisco...420, 445 277, 373, 401, 420, 442, 542,546, 589 Sulphide Ores, Zinc Lead, Treatment. 265 Thomson-Houston Electric Coal Drill* 202 Standards, Electrical.586 Sulphide Ores of Zinc and Lead, Unmn Mine, Idaho. 182 Thompson, Robt. M.276 Union wire Rope Tramway Co. 12 Stanhope’s Ore Concentrator. 179 Lewis’ Patent Process. 203 Thomson, Prof. Elihu. 276 Stanwood, James B. 372 United Coal Co., of Colo. . 37 Sulphides of Precious Metals and Thomson, Sir William. 12 United Smelting & Refining Co.350 Starlus Mine, Utah.16, 88, 376 Copper, Process of Treating, W hite- Tbowless’ Apparatus for Forming Star Mine, Idaho. 494 U. S. Cold Wire Rolling Co. 301 head’s Patent.347 Solid Ingots. 419 U. S. Geological Survey, Investiga¬ Starretts’ New Screw Pitch Gauge*.. 508 Sulphides. Zinc Lead, Argentiferous. 269 Thurlow, Lord. 12, 60 Starr Mine, Wood River, Idaho ..../. 421 tion. 108 Sulphur, Apparatus for Extracting, Thuron Coal Co. 568 U. S. Gold and Silver Production,1^1. 35 State King Mine, Wash ..545 l.aboy’s Patent. 467 Ties, Metal on Belgium State Rail¬ State Line & Sullivan Railroad.211 Sulphur in Copper, Estimation of. . 466 U. S., Great Britain and Europe, road . ... 372 Comparative Cost of Making Steel. 316 Station, Pennsylvania Railroad, in Sulphur Deposits, Ml. Popocatapetl.. 377 Tie. New Steel, for Railroads*. 151 Philadelphia.141 U. S. Imports.. 372 Sulphur, Determination in Coal...271, 320 Tiger Mine, Idaho.63,139 U. S. Land Office, Annual Report_ 157 Stead, Geo. 588 sulphur. Elimination of, from Iron. Tillie Foster Mine, Concentration at. 10 Stead, J, E., Elimination of Sulphur 297. 364, 387, 412, 437. t60. 485, 507, 556 Tilton, John H. 180 U. S. Mineral Product, 1891. 580 from Iron.364, 387. 412, 460, 485, 507 U. S. Mineral Resources.213 Sulphur, Return of, in Coal Analysis. 315 Timber Tests of the Forestry Divis¬ U. S. Mineral Statistics. 577 Steamboats on the Yukon River, Sulphur in Sicily.569 ion. 505 Alaska. 158 U. S. Mint, Director’s Report.442 Sulphuric Acid, Comparative Value Time-Keeper, Bolte’s Automatic, *... 419 U. S. Mints, Coinage at . 132 Steam Car Healing*.319 of Brimstone and Pyrites in Manu¬ Tin Cup Mine, Idaho.512, 614 Steam Cylinders, Condensation in.... 173 U. S. National Museum, Department facture . 76 Tin Deposits, Burmah.419 of Geology. 243 Steam Dryer, the Stratton*.178 Sulphuric Acid, Concentration in Tin Deposits, India. 3.33 Steamers, New, Cunard Line.l.}7 U. S. Navy, Launch of the Olympia.. 413 Glass Vessels*. 489 1 in Exports, Bolivia. 233 U. S. Fig Iron Prod., 1st Half lb^..82,105 Steam Generator Furnaces. Auto¬ Sulphuric Acid, Negrier’s Method of Tin Market. Weekly matic Regulator*. 58 Concentrating. 123 U. S. Pipe Line Co.325 Tin Mine, Dolcoath, Cornwall, Eng¬ U, S. Prod, of Gold and Silver 1891 ... 25 Steam Joints, Portland Cement for. . 611 Sulphuretted Hydrogen, Free from Ar¬ land.289,414 Steam Locomotives and Electric Mo senic..342 U, S. Projectile Co.276 Tin Mines, American. 98 U. S. Revenues.540 tors. 81 Sultana Smelter, Utah. 352 Tin Mines, Harney Peak.274, 536 Steam Packing, Portland Cement for 462 Sumatra Petroleum.415, 449 Tin Mines, Straits Settlements. 329 U. S. Rolling-Stock Co....276, 325, 396, 445 Steamships, New, for Cunard Line .. 271 Sumdum Mines, Alaska.158 U. S. Silver Purchases.337 Tin Mines, Temescal, Cal.277 U. S, Tin Plate Production. 84 Steel, Bessemer, Production of, 1892.. 178 Summit Gold Mg. Co. 474 Tin Mining, Malay Penninsula . .. 370 Steel Billets, Comparative Cost of Summit Mg. Co .. 85. 158, 252, 325, 474, 516 United Verde Copper Co .11, 302 Tin Ore Concentrating Plant at Har University Gold Mining Co.258 Making in the United Slates, Great Sunlight Min^ Idaho . 303 ney Peak, S. Dakota, *. 102 Britain and Europe. 316 Unloader, Lidegerwood Rapid*.484 Sundown-La Plata Mining Co. 16 Tin Ores, Shaft Furnaces for. 3 Unloader. Thacher Rapid*..561 Steel Chimneys. 539 Superheating Vapors and Gases, Ap¬ Tin Plate Analysis.610 Steel, Chrome.415 paratus for, Honigman’s Patent.... 467 Unwin, W. C. .. 204 Tin Plate Cleaning Apparatus, Jen¬ Upper Box Elder District, Wyoming. 65 Steel, Chrome, for Springs and Tires. 346 Superior Cold Roll Steel Co.252 kins’ Patent. 443 Steel, Determination of Carbon in.... 83 Upper Lehigh Coal Co.184, 640 Superior Iron Mining Co. 1%, 253 Tin Plate Cleaning Process, Norton’s Utah Asphalt.568 Steel, Effects of Heat on. 433 Surinam, Gold Placer Mining in. 196 Patent. . 587 Steel Furnace, Pedder’s Patent.347 Utah Mg. Co.538, 592 Surveying Instruments, Constructing, Tin Plate Production. 204 Ute and May Mines. Colo. 85 Steel in India . 318 Adjustment and Use.531 Tin Plate, Production of U. S. 84 Steel Ingots, Manufacture of Kenne¬ Survey of Mining Claims. 393, 611 Tin Plates, Merchant & Co. 132 Ute & Ulay Mines, Colo... .205, 589 dy’s Patent. 59 Survey Patent of the CaQon del Agua Tin Plate Wks., Brooklyn. 276 Steel and Iron Manufacture in Mex¬ Grant Canceled*.585 Tin, Process of Recovering from Tin ico.457 Susquehanna Coal Co. 184 Plate, Ga^'cla's Patent.179 Steel and Iron, Phosphorus Determi¬ Susquehanna Iron Co. 180 Tin, Process of Separating from Valentine, John J. 180 nation in..320 Sutter Creek District, Cal. 277, 420 Waste, Hannsen’s Patent . 419 Valve, Acton Back Pressure*.. 59 Steel and Iron, Pure, Production of 292 Swan Electric Light Patent . 61 Tin Reduction Works, Bear Gulch, Valley Mg. Co.159, 181, 253, 303 Steel, Magnetism of.226 Swan Mine, S. Dak.304 s^outh Dakota. 16 Van Cortland, E. N. 420 Steel Making and Puddling, Theory.. 510 Swansea Steel and Tin Plate Co.420 Tin, Separation of, from Cadmium... 246 Vancouver Cosl Fields. 394 Steel, Manganese, Mukai on. 387 Swanzr Iron Mg. Co.470 Tintic Milling Co. 112 Vanderburgh, Dr. F. V.564 Steel, Mild, Use in Construction. 487 Swedeland Furnace, Pa.324 Tintic Mining District, Utah . 88 Vandenbnrgh.Origen.276 Steel Mill Combination at Wheeling, Swedish Iron Works. 641 Tintic Tunnel, Utah.2% Van Hise, C.R., Marquette Iron Ores, 29 W. Va.212 Sweet Mg. & Milling Co.349 Titaniferous Iron Ores, Process of Re¬ Van Hise, Prof. C. R...167 Steel Plant of the Pottstown Iron Swindling Gold Mining Company. A. 265 ducing, Rossi’s Patent.539 Vanner Belts, Plain vs. Corrugated. 9, 51 Co.*. 438, 464, 488 Syler’s Improved Mining Machinery. 156 Titanium-Aluminum Alloys.366 Vanner, English.512 Steel Plates, Inju^ from Punching.. 347 Sypher’s Rock Drill .467 Titanium Nitride, Production of Am¬ Vanners in Australia.112 Steel Production, Great Britain, 1892 . 318 Syndicate Mine, South Dakota . 88 monia from. 347 Vanner. Stein* .3W Steel Rails. Cost and Selling Price... 71 Tombstone Mill and Mg. Co., 109,131, Vaporizing Liquids, Generator for, Steel Tie, New, for Railroads*. 151 169. 277, 565 Serpollei’s Patent.156 Steel Ties. Pennsylvania Railroad_ 60 Tomhicken Colliery, Penca.496 Varden Belle Mining Co.205 Steel vs. Wrought Iron . 370 Tabor Mines, Ariz. 37 Tomkins, C. D., Woodworker's Man¬ Varse, Albert W. 12 Steel vs. Wrought Iron for Boiler Tacoma Smelter, Wash. 256 ual.578 Veins, Faulting in. 27 Tuoes. 57 Taintor’s Improved Saw Set*.. 225 Tools, Buying.345 Vein8,Following,in Adjoining Claims, 275 Steel Wire Guns. 345 Talc Industry at Gouverneur, N. Y.. 368 Tornado Mine, S. Dak. 568 Venezuela, Callao Mines. 172 Stein Vanner*. 367 Talladega Iron and Steel Co. Torrey Botanical Club.540 Venezuela Tariff.324 XIV INDEX

Venture Mg. Co...... 181, 371 Water Gas, Action of, on Iron. 59 Whaleback Steamship Co. 81 Woods’ Process of Making Nickel- Venus Mine, Idaho.38. 86 Water Gas for Gas Engines, Plantfor*" 173 Wheeling Iron and Steel Co.157 Steel . . 300 Verde District, Ariz.636 Water, Natural Right to, in Colorado 190 Whippoorwill Mine, Mont. . HO Wood’s Steel Pick. *.. . 443 Vermillion Iron Range.39, 63, 117, 318 Water and Nitrogen. 211 W’hiskey Slide Gold Mine. Cal. 613 Woodside Colliery, Minersville, Pa... 88 Vermont Mineral Industries.173 Water Pipes, Laying Flexible.510 While Bank Mines, S. Afriea. 521 Woodside Mining Co. 161 Veronee’s Rock Catcher.563 Waters, J. N. E.36, 81 White Cap Mine, Colo ... .109, 517 ■Woodstock Iron Co., Alabama*... 108, 463 Veta Madre Mine,Colo. 230 Water Softening Apparatus*. 167 While Cloud Copper Mine, Nev.207 Woodville Oil District, Ohio. 136 Vienna Mg. Co . 566 Waters, Robert, Intellectual Pursuits Whitehead’s Process of Treating Sul¬ VV’oodworker’s Mannal.678 Vienna & International Mines, Idaho 518 of Culture by Self-Help. 551 phides of Precious Metals and Cop¬ Wooley, Lund & Judge Copper Mg. Victoria, Australia, Gold Prod.... 112,121 Water Supply, Liverpool, England*. 119 per.317 Co. 328 Victoria, Deep Mining in .219 Water Supply by Meter. 101 White Hills Pist., Ariz., 181, ^2, 325, Wores, Albert R.301 Victoria Gold Min'ka, Dividends., .. 289 Watertown Arsenal Enlargement.... 61 120, 636 Wheeler Mine, Cal. 565 Victoria Lode, 8. Dakota.1, 11 Water Tube Boiler, New*. 539 White, James. 36 Workmen and Employers, Relations Victoria Mg. Co.88, 303 Water Tube Boiler, Sterling*.611 White Pine District, Nevada, 184, 280, of.177,195 Victoria, Report of Secretary of Mines 116 Watervliet Gun Factory. 61 376, 520, 567 Workmen at the Erupp Works.265 Victory uold Mine, Queensland.197 Watrous, George D. 324 White’s Method of Heating by Metal Work on MiningClaims, Payment for 250 Victor Mine, Nevada.591 Watts Iron & Steel Co. 191 Bath.563 W'ork Mining Co.589 Victory Mine, S. Dak.256, 281 Watt, Wm. A. ‘252 White Star Line Coal Contract. 19 World’s Fair Notes... 12, 133. 228, 324, 441 Village, English Model, for Coal Waukesha Pipe Line. 192 Whitlatch Union Gold Mg. Co., 3.50, W’orld’s Fair Souvenir Coins. 149 Miners.364 Waverly Iron Co. 3‘26 399,122, 171 Worthingion Mine Pump*. 1.55 Villasenor, Alfred.157 Webster. Camp & Lane Direct Act¬ W’hitman, N. B., Brown Wire Gun.. 368 Worthington Pump Wks. Branch at Virginia Engineers’Association. 60 ing Hoist.6.35 Whitney’s Aluminum Alloy.156 Denver.396 Virginia Iron Co. 117 Weed, Walter H.318 VViborgh’s Air Pyrometer*.368,*389 Worthington Station Pump. 157 Virginia Iron Mines, Minn.207 Weeks, J. D., Cost of Pocahontas VVickes Dist., Mont. 399 Wrench, the Climax* . 11 Virginia Iron Ores*. 150 Coal. ‘219 Widman’s Rock Drilling Machine.... 227 Wrench, Improved Adjustable*.176 Virginia, Tennessee & Carolina Steel Welcome Chlorination Wks, S.Dak Wilbur, E. P...396 Wright, H. E., Rochester Mg. Co... 387 and Iron Co. 209 136. 352 Wildin. M. 12 Wright, Sam’l C. 132 Virginius Mine. Mont.135, 301 Welcome Mining Co.16,11, 88 Wiley & Russell’s Pipe Fitting Tool . 105 Wright & Edwards’ Mine, Mont. 160 Vlre, Merrill’s Parallel Swivel’. 11 Welding Metal vVheels, Scott’s Pat¬ Wilmington City Electric Co.6.36 Wrought Iron vs. Steel . 370 Volatilization of Quartz.190 ent Method. 59 Wilkes-Barre Coal Dist. 592 W.Y.O. D. Mg. Co.,11, 205, 227, 346, 442.538 Volatilized Metals. Process of Reduc¬ Well, Deep. Galveston, Tex.538 Wilkeson Coke Wks., Washington.... 161 Wyoming Clay, New. 51 ing, Seymour’s Patent.539 Well Drilling Machine, Draper’s Pat¬ Willard Iron Mine, Utah. 161 Wyoming Coalfields.256 Volcanic Rocks, Mineral Formations, 98 ent. 203 Wm. Penn Colliery.307, 196, 520 Wyoming Iron Co.254 Volcano, Active, in Behring Sea.313 Weller’s Rock Crushing Machine.113 Williams, Gardner F.157 Wyse.Lucien Napoleon Bonaparte... 564 Von Rosenburg, Leo. 201. 252 Wellington Coal Co . 281 Williamsport & South Branch Rail¬ Volumetric Determination of Mercury 218 Wellman Iron & Steel Co. 141 road. 211 Volunteer Mine. Mich.122 Wendigo Cupper Mining Co. 398 Williams, Prof. H, L. 324 Vulcan Iron Co.611, 638 Wepper, G. W., Milling of Gold Ores, ‘291 Williams, W. 441 Yacht, Aluminum.;. 362 Vulcan Iron Works, Jersey City.396 West, A. R.561, 5^ Willis. B., Structural Geology. 340 Yankee Fork Mine, Idaho.566 Vulture Mines. Ariz. 37 Wilson’s Electric Process for Reduc¬ Yankee Girl Mine, Utah.. 109, 352 West Consolidated Virginia Mining Yates, E. E. 516 Co... 87 ing Refractory Compounds.515 W West Cumberland Iron & Steel Co.. .1. 17 Wilson Creek Dist., Colo.205 Yavapai Mine, Ariz . 3 West Duluth Blast Furnace Co.513 Wilson, Sir Daniel. 157 Yellow Jacket Mine, Idaho.278, 518 W'inchester Mine, Colo.517 Yellow Jacket Mg. Co., Nev., Wages and Labor.290 Western Australia Blue Book, 1891, 290 66, ‘280, 401, 521 Wages, Rolling Mill Workers’ .341 Western Australia Gold Mines.397 Winnie Gold Mine, Mont. 15 Yellow Stone Mine, Mont. 110 Wagner, H. R.141 Western Flint Bottle Mfrs. Assn — 192 Winslow, Arthur, Coal Measures of Wahl VV'., Tungsten . 310 Western Iron Ore Association. 12 Missouri. 363 Yontche Mg. Co.‘281 Wainwright’s Method of Working Western Maryland Railroad.235 Wire Cutter and Pi pe Wpouch*. 81 York Farm Colliery. Pa. 112 Wire Drawers’Weight Scale. 132 Yorktown Colliery, Pa.400, 496 Heat Regenerator).317 Western Maryland R. R. Extension.. 307 Yosemite Mg. Co. No. 2. 11 Waitt, A. M., Car Heating. 319 Western Penn. Engineers’ Society,318. 168 Wire Netting in Plate Glass. 155 Young America Mine, Wash.. 112, £05, 473 Walhurn-Swenson Mfg. Co.60, 397 Western Union Tel. Co. 120 Wire Rope. New Form*. .275 Wire Rope Tramways in Mining Young Mammoth Mg, Co. 41 Wales, Coal Mine E.'cplosion in.233 Wesleyan City Coal Mine. Illinois_206 Y. IMg.Co. 473 Wales, Gold Mining.. 185 West Indies, American Fertilizers in. 321 Regions. .237 Yuba Mine, Nev. 4‘23 Wales, Manganese Ore . 196 Westii.ghouse Air Brake Co.‘276, 301 VV’itwatersrand Central Ore Reduc¬ Yukon District. Alaska.‘229, 302 Walhonding Valley Railroad.235 Westinghouse Brake in China. 36 tion Co. 209 Walker, E.. Molecular Surface. 211 Westingbouse Electrical Co.60. 61. 201 Witwatersrand Chamber ot Mines Yuma Copper Co. 62 Walker, E., Petroleum Engines 151 West, J. B.581 Annual Report.‘290 Walker’s Ore Concentrator. 156 West Kootenai District, British Co¬ Witwatersrand District, S. Africa, Walker, Wm . 56 lumbia . 377 17, 217. 219, 329. 521, 531 Zoehan & Dundass Silver Smelting Waller, Dr. Elwin. 180 Westmoreland County, Pa., Coal Witwatersrand Gold Production... .1, ‘233 Wks., Tasmania*. 222 Walsh. T.F. 252 Ijands. 16 Wizard Mining Co .185 Zeile Mine, Jackson, Cal.589 Waltham Watch Co. Clean-up. 433 West Olive Branch Mine. Nev. 15 Wolcott Mg. Co .205, 206, 517 Zenith Iron Co.182, 206 Walton, Joseph..561 Weston Mines, Colo. 38 Wolf Creek District, Mont.375 Zinc-Coated Copper Wire.‘204 Ward, W. S. 180 West Pullman Land Association..— 60 Wolf, G. de. Hydraulic Mg. in Brit, Zinc. Determination of, in Ores. 178 War Eagle Mine..182, 276 West Superior Blast Furnace. 192 Columbia . 627 Zinc, Electrolytic Precipitation. 315 Warner.H. H.. and Seven Stars Mine, .388 West Superior Iron and Steel Works, Wolf Tone Mine, Idaho. 14 Zinc Furnace, Lumaghi’s Patent.,,, 347 Washington, A. C. Ill 81, 157 W’olfram. Discovery of. at Broken Zinc Lead Sulphides, Argentiferous Washington Iron Co. 301 West Virginia Central & PittsburgR.R 1<‘1 Hill, Australia .161 ■Treatment.269, 295 Washington Mine. British Columbia. 101 West Virginia Coalfields . ‘232 Wolski, John . 348 Zinc Nitra tes, Basic. 58 Washington Mine, Idaho.38,20.5, 230 West Virginia Coal Land Syndicate, Wolverine Mg. Co_ 134,159. 231, 2.53. Zinc Ore,Magnetic Senaraling Plant* 77 Washington Reduction Co.... 112, 352, 173 376 397 303, 398. 518, 590 Zinc Ore, Mineral Valley, New Mex. 327 Washington State Exhibit at Chicago. 12 West Vulcan Mine, Mich . 206 Wood. H., Flathead Coal Basin. 37 Zinc Ore Sales, Jasper Co., Mo„ Weeklv Water-Balanced Gravity Railroad... 105 Wetherill’s Process for Reduction of Wood, H., Sampling Ores. 156 Zinc Ore Shipments, Joplin, Mo..Weekly Waterbury Brass Co. 60 Complex Ores.371 Wood, H., Veins in Montana.292, 605 Zinc, Reducing, James’ Patent. 59 Water Elevator and Conveyor. Boat¬ Wethey, A. H. TariflT on Silver Woodlawn District, Utah. 2-57 Zinc Reduction, James’ Process. .105, 317 wright’s Patent. 179 Bullion. 339 VVood’s Brick Machine. 203 Zuyder Zee, Draining. 178