The Royal Engineers Journal. The Institution of Royal Engineers . 169 The Air Mapping of the North-West Frontier Capt. D. R. Crone 171 Explorations and Excavations in Palestine .Colonel Sir Charles Close 185 Engineer Orders . Capt. T. H. B. Foott 201 The Collective Training of Mobile A.A. Searchlight Units Lieut.-Colonel M. F. Grove-White 212 The Kincardine-on-Forth Road Bridge . Capt. S. A. Stewart 223 "C..E.S." . ajor C. L. Simpson 241 Skew Guns and Survey-an Answer . "Sterno" 251 Dowsing . Major A. J. Edney 257 A Survey Social . "O.R." 270 Memoirs . 279 Books . 292 Magazines . 00 VOL. L. JUNE, 1936. CHATHAM: THE INSTITUTION ov ROYAL ENGINEBRS, TELEPHONE: CHATHAM, 2669. AGENTS AND PRINTERS: MACKAYS LTD. LONDON: HUGH REBS, LTD., 5, REGzNT STRzET, S.W.X. AU Corrtspondnce cornncted with Advertisemets should bI addr~d to C, OWLY-INTIADVTUTIBr OFON RE OFFICE COPY INSTITUTION OF RE OFFICE COPY DO NOT REMOVE "Expamet" Expanded Steel has been in successful and ever increasing use all over the world for more than 40 years as a reinforcement for concrete; it has excep- tional qualities, especially in large plain and curved areas: it is particularly suitable for reinforcing concrete In foundations, walls, floors, roofs, culverts, bridges, etc. The 41' and 3' mesh weights are used mostly for such work, and the I', 2' and 6' meshes also In some cases; the lighter weights of ', I' and If' meshes are used frequently in concrete encasement to structural steelwork, and in pre-cast con- crete articles. EXPAMET EXPANDED METAL British Steel : British Labour THE EXPANDED METAL COMPANY, LTD. Patentees and Manufacturers of Expanded Metal. Engineers for all forms of Reinforced Concrete & Fire-resistant Construction BURWOOD HOUSE-CAXTON STREET-LONDON-S.W.1. Works: WEST HARTLEPOOL Established over 40 years Sole Agents for India- WM. JACKS & CO., Bombay, Karachi, Lahore,Calcutta, Madras. ADVERTISEMENTS. e--·------^-·---x-·- 4 ---- SRP...-·--·.F------ --- --- I31 VICTAULIC FOR SERVICE WORK I Part of 38,000 metres of I4" steel tubes for the Water Supply of Paramaribo (Dutch Guiana). The main is fitted with Victaulic joints, assembled by native labour, Test pressure, 25 atmospheres. VICTAULIC COMPANY Ltd. KINGS BUILDINGS, DEAN STANLEY ST. WESTMINSTER, LONDON, S.W.1 - ·· I s- IIL I II ii ADVERTISEMENTS. EST. 6 ESTABLISHED OVER 50 YEARS AS MILITARY TAILORS AND AS MAKERS OF DEGE'S CELEBRATED " SEAMLESS KNEE-GRIP " BREECHES Extensively patronised by Officers of the Royal Engineers " J. DEGE & SONS, LTD. glilitarlt annb glufti gailtrs, 3rettlts ;italer,s 13 Conduit Street, London, W.1 Telegrams: Harkforward, Piccy, London Officers waited upon at Telephone: Mayfair 1325 Military Camps and Barracks 1, Artillery Place, Woelwich, S.E.18. Telephone: Woolwich 0275. 1, Artillery Place, Woolwich, S.E.18. I Regent 3560. 6, St. James' Place, S.W.1. J. DANIEL S & Co., Ltd., Military& Civilian Tailors,Outfitters and Breeches Makers. R.E. AND R.A. COLOURS IN STOCK. CARLISLE & GREGSON 5, LEXHAM GARDENS, KENSINGTON, W.8. STAFF COLLEGES, PROMOTION, ARMY, NAVY AND ROYAL AIR FORCE ENTRANCE EXAMS. CIVIL SERVICE AND UNIVERSITIES, TERRI- TORIAL ARMY AND SUPPLEMENTARY RESERVE. Telegrams: -- Lexjam, Hens, London."" Phone : Western, 1287. Telegrams: "Lexjam, Kens, London." Phone Western, 1287. AD VERTISEMENTS. iii BUILT TO LAST These famous structures were -made by experts, with foundations Ple wriand materials of the best, to with- istand time and the elements. B SO ARE THE SUITS L BUILT BY .- Sackville,-St. London.W _ who is known all over the Empire for originating the UNIQUE OVERSEAS SERVICE with an entirely new system enabling you to obtain a suit beautifully made as if you had been fitted in London. Please write for patterns and particulars. 10% discount on all first orders. J. G. PLUMB & SON VICTORIA HOUSE, 117, VICTORIA ST., WESTMINSTER, S.V.1 Established 1895 Telephone : Victoria 3434 Military Tailors and Outfitters By Appointment to THE ROYAL MILITARY ACADEMY, WOOLWICH for the past Quarter of a Century ........................................................................ Mhess Jacket, Vest and Overalls complete £14 7 6 Dinner Suits from £9 19 6 Lounge Suits - - from £6 6 0 A special discount of Io% is always given to Gentlemen Cadets, past and present. EXTENSIVELY ENMPLOYED BY OFFICERS RECENTLY COMLMIISSIONED FROM THE SHOP, AND APPOINTED TAILORS TO THE ROYAL ENGINEERS TRAINING BATTALION, CHATHAM. 1 - - iv ADVERTISEMENTS .-z&PLATNUM wz.7,11-e AZ L. point! The use of Platinum, one of the world's have shewn that it gives a real improvement most precious metals, has made it possible in starting, slow running and length of life. to incorporate this firing point in fine wire At first sight it might be expected to cause in certain K.L.G. plugs. pre-ignition-but it does not. It is a complete break-away from orthodox Most K.L.G. six shilling popular design but fifteen months testing and types are available with a platinum ^ thousands of miles in all kinds of engines firing point at - 6 K.L.G. SPARKING PLUGS LTD., PUTNEY VALE, LONDON. S.W.I15 THE MILITARY ENGINEER IN INDIA. By Lieut.-Colonel E. W. C. Sandes, D.S.O., M.c., R.E. (retd.) (Author of In Kut and Captivity, Tales of Turkey, etc.). VOLUSIE I. 594 + xxiii pages, with 25 half-tone illustrations, 18 plans in text, and 5 maps in pocket. With a Foreword by General Sir Bindon Blood, G.C.B., G.C.V.O., Colonel Commandant Royal Engineers. Price Twenty-five Shillings, post free. (To Members of the Institution of Royal Engineers, 6s. post free.) VOLUMIE II. 392 + xxii pages, with 41 half-tone illustrations, 5 plans in text, and 4 maps in pocket. Price Fifteen Shillings, post free. (To Members of the Institution of Royal Engineers, 6s. post free.) NOTES.-I. Retired officers who have been Members during the whole of their service, but have resigned membership, may also obtain these books for six shillings each, post free. 2. Non-members ordering Volzumes I and II together can be supplied for thirty shillings, post free. Obtainable from the Secretary, Institution of Royal Engineers, Chatham, and at Headquarters of Sapper and Miner Corps in India. ADVERTISEMENTS. v "BAKER'S" FURNISHING Whether it be replenishments of Linen, fresh curtains or chair covers, a single piece of furniture or setting up house completely. You can furnish conveniently, entirely, and at a very considerable saving of expense through "Bakers." 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For sale in the office of the Secretary, Institution of Royal Engineers, Chatham. COMPRISING THE FOLLOWING VOLUMES:- Bridging.-With 3 maps, 59 photographs and 31 plates. Price 125. (to members, 3s.). Military Mining.-With 25 photographs and 62 plates. Price 12s. 6d. (to members, 3s. 6d.). Geological Work on the Western Front.-With r9 plates and 9 photographs. Limited to 500 copies. Price 15. (to members, 5s.). Signal Service in the European War, 1914 to 1918, The.-(By special arrangement with the Signals Association) R. E. Priestley, Ms.c., B.A. (late Major, R.E.). With 2 photos and 20 plates. Price i2s. 6d. (to members, 4s.). Supply of Engineer Stores and Equipment.-Price 7s . (to members, is. 6d.). Water Supply (Egypt and Palestine).-With 7 maps, 6 photos, so plates, and 20 sketches in the text. Price 8s. (to members, 2s. 6d.). Water Supply (France).-With lo maps, 37 photographs and 41 plates. Price i6s. (to members, 5S.). " A simply invaluable compendium of the work done in this vital respect on the Western Front."-Spectator. Work under the Director of Works (France).-With 6 maps and 71 plates. Price 21s. (to members, 5s.). "Miscellaneous," comprising:-(i) The Organization of the Corps, 1914-1918. (2) Engineer Intelligence. (3) Camouflage. (4) Concrete Defences and Factories. (5) Forward Communications. (6) Machinery, Workshops and Electricity. (7) Inundations. (8) Anti-Aircraft Searchlights. (9) Schools. With o05 Plates and Photographs. Price 20s. (to members, 5s.). The whole of these nine volumes may be purchased by members for 30s. Postage extra in all cases. Descriptive Accounts ot Foreign Stations.-The following pamphlets have been revised and reprinted and are available, price to members, is. each:- Ceylon (1923); Egypl (1923); Gibraltar (1922) (see also Supplement to R.E. Journal, November, 1927); Honzg Kong (1927); Malta (1928); Mauritius (1922) (see also R.E. Journal, March, 193) ; Singapore (1930) Jamaica (1928) (Typescript only), 6d. Notes on the China Command (Hong Kong, Peking, Shanghai, Tientsin, Wei-hai- lVai) (I929-3o), Is. Notes for Officers Proceeding to India (1930), (3s. 6d. each; to members 2s. 4d.). Official Handbook for British Troops in Egypt and Cyprus (1931), with R.E. Addendum, Is. 4 d. Notes for Officers Proceeding to Bermuda. Available on loan. Studies of German Defences near Lille.-By Major B. T. Wilson, D.s.o.