Royal Engineers I Journal
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} ' The Royal Engineers i Journal. i .i ! i , The 20th (Field) Company, Royal Bombay Sappers and Miners, 1914-18 Major H. W. R. Hamilton 537 Shell-Fire versus Permanent Fortification . Lieut. H. B. Harrison 564 The Last Days of the Irish Command . Major-General G. Walker 571 Pioneer Motor-Cycling in India Lieut.-Colonel E. W. C. Sandes 588 Our Later Selves . "Arthur Vincent" 595 Notes on Protective Gear . Major A. C. Finnimore 601 ! Battle Honours of Royal Engineer Units . .613 I i Description of Water Power Plant for Country House Lighting Captain A. R. Hildebrand 626 Notes by a Chief Engineer during the Great War of 1914-1918 : Brigadier-General W. Baker Brown 631 Demolition of Tree Stumps . .Lieut. T. I. Lloyd 645 ' An Unofficial History of the Signal Service with the British Salonika Force, 1915-18 . Captain C. C. S. White 647 Tank Assault Bridge . Major G. Le Q. Martel 659 Lieutenant-General William Spry .. .661 Roll of the Corps of Royal Engineers of Ireland, 1251.1801 M Major W. P. Pakenham-Walsh 664 Memoir. Books. Magazine. 669 , VOL. XL. No. 4. DECEMBER, 1926. CHATHAM: THE INSTITUTION OF ROYAL ENGINEERS. TELEPHONE: CHATHAM, 669. AGENTS: W. & J. MACKAY & CO., LTD., FAIR ROW, CIIATHAM. HUGH REES, LTD., 5, REGENT STREET, LONDON, S.W.I. PRINTED BY F. J. PARSONS, LTD., OBSERVER BUILDINGS, HASTINGS. All Corr -. ----.----- ... L .. .A Trl r MENT INSTITUTION OF RE OFFICE COPY INSTITUTION OF RE OFFICE COPY DO NOT REMOVE THE ONLY ACCUMULATOR IN THE WORLD WITH PLATE-GRIDS MADE OF PURE LEAD -- with the Plate Grids Die Cast and Pasted entirely by machinery. Without Wood Separators or Celluloid, eliminating internal resistance and heat which shortens the life of other makes of -plates, and creating constant trouble. TUNGSTONE pure Lead Grid OBUST Machine-made Plates permit charge and Discharge .at Continuous High Rates with Safety, No possibilities of the Plates Buckling or short-circuiting in service. No Fire or Explosion Risks when Charging above Normal Rates. A Tungstone Battery is not fully charged unless the Acid shows fully 1300 Sp.G. Tungstone Robust Machine Made Plates are in best condition when always kept fully charged. VERY IMPORTANT ADVICE TO MOTORISTS. Arrange for Car Dynamo output to be permanently increased so that at a car speed of 20 miles per hour the continuous charging rate is as follows, viz.: 40 a.h. Battery minimum charging rate is 8 amps. 50 a.h. ., .. ,. 10 amps. 75 a.h. .. .. 15 amps. Tungstone Machine Made and Pasted Plates are Heavier and Stronger than any other make of Plate, and therefore can be continuously charged at these higher rates than any other make of battery. Tungstone Plate Grids being made of Pure Lead. and the Paste of Pure Lead Oxides, ensures exceptional storage capacity and quick discharges. therefore provision is made to give continuous, ample and generous power for Self-starting without cranking. Follow these instructions and you permanently get the full benefits of the originality of Tungstone Design and Manufacture of a Pure Lead Plate and Grid giving exceptional Strength, Storage, Dependability. Reliability, Security, and Safety. CHARGING HIGH TENSION AT 12-16 VOLTS POTENTIAL. All H.T. Tungstone Accumulators are fitted with a Patent Equipment whereby each series of 12 Volts can be coupled in parallel so that these H.T. Batteries of whatever voltage can be charged at local Garages and Charging Stations on a 12-16 Volt Low Tension Charging Plant. Charging Terminals are provided on the front of the Cabinet arranged in two rows. the top row being Positive and the bottom row Negative. When in use these charging terminals are connected inl pairs so that all cells are in series. Apply for copy, sent post free, Illustrated Booklet- "Photography tells the Story of the Tungs:one Accumulator." Please address all communications to the Distributors' Offices and Showrooms: TUNGSTONE ACCUMULATOR CO., LTD., 3, ST. BRIDE'S HOUSE, SALISBURY SQ., FLEET ST., LONDON, E.C.4 Telegrams: "Typify, Fleet. London." Telephone: Central 8157 (4 lines). SOLD BY ALL DEALERS. T.24 Series of Patent Designs and Trade Mark Issued or Applied for in the Chief Countries of the World. ADVERTISEMENTS. -1 f7 cl11-A-1 Showing Victaulic flexibility.: a line in India. For quick Laying and perfect Leak-tightness. Pipe-lines with Victaulic Flexible Joints are the easiest of all to lay, and are the most leak-tight; a mile of 4' can be coupled up in less than an hour, and be ready for the pressure without further attention. 50 Victaulic portable grooving tools have been supplied to the Director of Army contracts; these tools cut and groove template lengths and making-up pieces, more quickly than screwing. Tubing, and every kind of fitting, valves, etc., for emergency and temporary lines, from stock. Victaulic Joints have been accepted by the War Department. THE V],CT1AULTI COMPANY, LIMITED, KING'S BUILDINGS, DEAN STANLEY ST., WESTMINSTER, S.W.1. ADVERTISEMENTS. Ill11 1 1111 111 11 f1 ~f(Il~ t llll I l llll lllll II~iiiiiJ iijj I]jllllJ 1ill;llllllll !1 ~ l J11111111l 11111l l 111llll 11 11 111 11111111111 THE BALKAN CIGARETTE Co., Ltd. (British Owned), EDWARD HOUSE, REPHIDIM STREET, LONDON, S.E.1. The Balkan Cigarettes are supplied to Embassies, Legations, Consulates, Regimental Messes, London Clubs, University Colleges, etc., and are tested by the finest Turkish Experts. Offer them to your friends, who will immediately detect the difference in the quality, flavour and aroma between these cigarettes and the many other Turkish cigarettes on the market to-day. The name of The Balkan Cigarette Co. is a guarantee of quality. TURKISH. Large Balkans .. .. 100s. 15/6; 50s. 8/-; 25s. 4/- Medium Balkans .. .. 100s. 14/-; 50s. 7/3; 25s. 3/8 Small Balkans .. .. 100s. 13/-; 50s. 6/9; 25s. 3/5 Super choice Yenidje, soft and smooth. Exquisite flavour. The above are the chosen of connoisseurs, and are guaranteed. BALKAN BAYARD .. 100s. 9/9 ; 50s. 5/-; 25s. 2/6 Mild Yenidje of delicate flavour ZURAMI QUEENS .. 100s. 8/6; 50s. 4/3 ; 25s. 2/3; 20s. 1/11 An " In-between" Smoke. Choice Turkish, Mlild and Cool. Delicate flavour and aroma. Also specially suitable for ladies. BALKAN KHREMONA .. 100s. 8/- - - MAHRANEE .. .. 100s. 6/6; 50s. 3/6; 25s. 1/9 - Special Mild Turkish. To prevent substitution, special attention is drawn to the name "THE BALKAN CIGARETTE CO., LTD., and BRIDGE DESIGN " which appear on every box. The owners of the Company are BRITISH BORN &. rely solely on the quality of their goods. INSIST on goods manufactured by The Balkan Cigarette Co. Ltd. and avoid being offered inferior substitutes. 11I I IIIIlllillIll11 1111111111111111111111111 li 11111 111111i 11111111111111111111111 """' ' """""" AD VERTISEM1ENTS. Before deciding Ask BAKER'S to Quote! ¼R-U ,b50 Np,SN-T\ ; | ?lle~-'\n,"-- " '"'"n' 'c?& NEW HEAD OFFICES Since the announcement in the last issue, F. P. Baker & Co., Ltd., have been in- formed by the Post Office that their New Head Offices, formerly known as Ia, Golden Square, are now officially designated 2, UPPER JAMES STREET, GOLDEN SQUARE, LONDON, W. I. Although the formal address is altered, the organisa- tion within the offices remains the same and the past two months' experience seem to show that these more convenient premises are greatly appreciated by clients. We have as clients many of the Royal Engineers, and appreciate the privilege. We can assure them that facilities for the purchase of every variety of goods at very ad- vantageous prices, are now better than ever. Baker's Service is even more complete than before and all enquiries will receive the most prompt attention. Head Ofices and Sample Room-2, Upper James Street, Golden Square, IV. 1. Gun and Sporting Rifle Department-i5, Panton Street, Haymarket, S.W. i. City Office-Bombay House, 4 and 5, Bond Court, Walbrook, E.C. 4. Telephone: Telegrams: Gerrard: 5748-5752: - Vidalabak, Piccy, London. ............................... ................................. We are "true dispatch is a rich thing .... " All support grateful Bacon. is much for for Ifa True Dispatch IWeapprecated. can also Mess Plate, For your purpose, this phrase-True Dispatch Collect Goods, Mess Kit, -may be interpreted to signify an Organ- Pack, R.I. Kit, isation built up especially to meet the needs Str Games Kit, of a Service Clientele. Personal Kit, Over 60 YEARS' EXPERIENCE has Travelling Kit, enabled F. P. BAKER & CO., Ltd., to Ship Furnishings, perfect this organisation, so that you are Promptly, Car-s : afforded a very substantial saving on all Sporting Guns your purchases. and by the and In addition, you can rely on us to submit Cheapest Rifles. suggestions and information as desired-- Method. I promptly and efficiently.. ................................. .,: F.P. Baer& Co.,Ltd. @ 2, UPPER JAMES ST. (, GOLD°EN s.) GOLDEN SQUARE, W. 1. A 1 vEB PtSEMEiN TS. 1 Ii EXISTS TO Serve the Services. 11111lll1111111111111 11111 It is the Services' Own Business. 1111111111i i11111111 ll PROMOTE YOUR OWN AND YOUR SERVICE'S INTERESTS By obtaining everything you require from your Regimental Institute. Our Price Lists & Catalogues include: PROVISIONS TOILET REQUISITES GROCERIES SPORTS OUTFITTING CONFECTIONERY AND PRIZES WINES AND SPIRITS BOOKS & STATIONERY TOBACCO PRINTING CIGARS & CIGARETTES CUTLERY AND PLATE FANCY GOODS HARDWARE ETC., ETC. 11111UlliIZ I111[1111111 11111 The more you deal with your own business, the more rebate will be paid to your regimental funds, and the more your comfort and convenience will be increased. Address enquiries to Headquarters': Imperial Court, Upper Kennington Lane, S.E.11 ii THE INSTITUTION OF ROYAL ENGINEERS. (Authors alone are responsible for the statements made and the opinions expressed in their papers). CONTENTS. PAGE I. HISTORY OF TIIE 20TII (FIELD) COMPANY, ROYAL BO1MBAY SAPPERS AND MINERS.