222 THE COLLIERY GUARDIAN. February 4, 1916. CONTESTS. Editorial Articles:— page Churm v. Dalton Main Collieries Limited ..... 223 Limitation of Freight Rates ................ 223 Articles Turbo Blowers and Compressors................ 215 Mine Accidents and Uniform Records .........: 217 The German and Austrian Coal and Iron Trades ... 219 Utilisation of Energy of Coal................ 220 Trade and the War.......................... 228 Mr. William Stewart.......................... 229 Book Notices............................... 231 Lecture on “ Coal33 ........................( 231 Mine Ventilating Door.?..................... 231 Labour and Wages............................. 233 Coastwise Shipments in December ........... 234 Obituary............?........................ 234 Open Contracts .....j........................ 235 The Freight Market .......................... 235 Catalogues and Price Lijsts Received ........ 235 Abstracts of Patent Specifications Recently Accepted................................ 236 New Patents Connected with the Coal and Iron Trades..................................... 238 Government Publications .................. 238 Publications Received ...................... 238 Law Intelligence ............................... 229 Current Science and Technology................... 220 Notes from the Coal Fields ................... 232 Coal,, Iron and Engineering Companies ........... 234 The Coal and Iron Trades......................224—228 The London Coal Trade ...................... 227 The Tin-plate Trade ....................... ' 227 The By-Products Trade ....................... 228 Report of Meeting :— South Wales Institute of Engineers ......... 218 Miscellanea :— Russian Coal Mines and War Prisoners—Hull Coal Exports—The Government and Coal Supplies ... 217 Grimsby Coal Exports—Mine Managers’ Exami- Miners and Military Service ............... 224 nations................'.................. 229 .Manchester Geological and Mining Society—Coal . Contract Dispute........................ 233 Scientific Research...................... 235 Russian Coal : Proposed Monopoly — Permitted Explosives for Mines in New South Wales— Russian Coal Resources—Coal and Coke Produc- tion in the United States During 1915 .... 238 ADVERTISEMENTS. Offices for ADVERTISEMENTS and PUBLICATION— 30 & 31, Furnival Street, Holborn, London, E.C> Telegraphic Address—“Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. CONTRACT ADVERTISEMENTS : Prices for SPECIAL POSITIONS on application. 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The Colliery Guardian, published at 2.30 p.m. on Friday, can be supplied direct from the Publishing Offices, post free for twelve months, at the following rates, payable in advance :— For the United Kingdom ... ... £1 3 6 For Foreign Countries and Colonies £17 6 When foreign subscriptions are sent by Money Orders, payable through the Post Office, advice should be sent to the Publishers. Offices for Advertisements and Publication :—30 and 31, Furnival Street, Holborn, London, E.C. Telegraphic Address, “Colliery Guardian, Fleet, London.’’ Telephone—1354 Holborn. Established 1866. PATENTS, DESIGNS, and TRADE MARKS. TTARRIS AND MILLS, -H- Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. Telegraphic Address—"Privilege, London.” Tel. No.—Holborn 2763. VENTILATING FANS ' AND ENGINES. See Advertisement appearing on front Cover of alternate weeks. THE WADDLE PATENT FAN AND ENGINEERING CO. LTD., Llanmore Works Llanelly I 17 Q for minerals, WATER AND BRINE. Boreholes for Prospecting in . Underground Workings a Speciality. VIVIAN’S BORING COMPANY, PARKSIDE, CLEATOR MOOR. OVER 83 MILES OF BORINGS COMPLETED. Established 44 years. Largest experience. Telegrams—** Vivians, Parkside, Oleator Moor.” BORING mr MINERALS, &o Solid Specimens of the Strata obtained. Established 1888. Work guaranteed. J. s. DAVIDSON & SON, St. Bees, CUMBERLAND. STEEL Rails Roof Rars Pit Props Arches , For COLLIERIES V and WORKS. . THO® W. WARD Ltd., Albion Works, SHEFFIELD. TRY US- "CROWN” BOILER COVERINGS of Outstanding Superiority. 96°/0 SAYING Intensest Heat cannot Impair. ok Union Works. Godley, 3U i bLIrrt OlWB- NR. Manchester. Expert Advice on all questions arising1 out of INCOME TAX, “EXCESS” PROFITS TAX, RELIEF to “CONTROLLED” ESTABLISHMENTS, LOCAL RATES, etc. THE KAHtrFACTUBBBS’ ASSOCIATION LTD., 110, Cannon-street, London, E.C. The Gosforth Foundry Co. Ltd. Malleable Ironfounders, DRONFIELD, near SHEFFIELD. Makers of all kinds of DRIVING & ELEVATOR^ CHAINS, SPROCKET WHEELS, ELEVATOR BUCKETS. &c. ONLY A FEW LEFT. THE COLLIERY MANAGER’S POCKET BOOK, ALMANAC & DIARY - - For 1916. - - 47th Year of Publication. Edited by HUBERT GREENWELL, F.S.S., Assoc.M.I.M.E. PRICES. . s. d. Cloth .............. 2 0 Roan (Gilt) ... 3 0 Calf (Gilt) ... 4 6 „ Postage extra.—Copies are sent by Parcel Post: One copy 4d., and Id. for each additional copy up to 11 lb. London: THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, E.C. THE ISCA FOUNDRY COMPANY LTD., RAILWAY PLANT