122 THE COLLIERY GUARDIAN. August 21, 1914. contents. Editorial Articles :— page The Manufacturer and the War ............. 423 The Shipment of Steam Coal................. 423 Factory inspection in 1913 .............. 42.3 Progress in Coalfield Geology .......... 424 Articles The Limiting Conditions for the Safe Use of Electricity in Co J Mining ................ 413 Membership of Trade Unions in 1913.......... 415 Detaching Hooks for the New Welbeck Colliery ... 415 Coke Oven By-Products in 1913............... 41a Explosive Combustion and Combustion by Incandescence ............................. 417 Germany's Markets ......................... 418 Obituary.................................... 421 Trade and the War........................... 424 American Tests of Detonators ............... 425 Labour and Wages............................ 425 Water in Sand Pulp for Mine Filling......... 426 “Safety First” Devices on the Band.......... 426 Mining and Other N otes .................... 426 Behaviour of Bescue Apparatus in Hot Air..... 427 Substitutes for Wood Timbering in Mine Opera- tions ..................................... 428 Materials for Boof Support ................. 432 Colliery Accidents ......................... 432 Coal Stored Under Water .................... 433 Coal Shipped from Ports in England, Scotland and W ales................................. 434 Open Contracts.............................. 434 The Freight Market ......................... 434 Coal Mining in British Columbia in 1913 .... 435 Book Notices.............................. 435 Abstracts of Patent Specifications Becently Accep bed 436 New Patents Connected with the Coal and Iron Trades .................................. 438 Government Publications .................... 438 Publications Beceived ...................... 438 Workmen's Compensation ......................... 426 Continental Mining Notes ....................... 429 Notes from the Coalfields ...................... 430 Indian and Colonial Notes ..................... 433 Coal, Iron and Engineering Companies ........... 435 The Coal and Iron Trades ....................419—421 The By-Products Trade ...................... 424 The London Coal Trade ...................... 425 Report of Meeting:— Institution of Mining Engineers ............ 425 Letters to the Editors: — The Shortage of Pit Timber ................. 427 Miscellanea :— Immingham Coal Exports ..................... 415 Grimsby Coal Exports -Coal Trade of Alexandria 418 Oil 'versus Coal for Marine Use—U.S. Navy Coal Contracts ................................. 425 Arbitration and Conciliation—Palling Bodies in X^-XDeep Mine Shafts ........................... 434 Hull Coal Exports .......................... 438 ADVERTISEMENTS Offices for ADVERTISEMENTS and PUBLICATION— 30 & 31, Furnival Street, Holborn, London, E.C, Telegraphic Address—“Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. 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See Advertisement appearing on front Cover of aVernate weeks, THE WADDLE PATENT FAN AND ENGINEERING CO. LTD. Llanmore Works Llanelly. TjrATDTp TJAT 17 Q fob minerals, WATER AND BRINE Boreholes for Prospecting in Underground Workings a Speciality. VIVIAN’S BORING COMPANY, PARKSIDE, CLEATOR MOOR. OVER 84 MILES OF BORINGS COMPLETED. Established 42 years. Largest experience. Telegrams—“Vivians, Parkside, Cleator Moor.” The Cambrian School of Mines, CEMETERY ROAD. PORTH, GLAM. An University Training at Your Own Home. Lessons and Instruction by Post f«>r candidates for FIRST and SECOND Class Mine M nagei s’ and Mine Surveyors’ Home Office Examinations; Surveying and Electrical Engineering for London C ty Guild’s Exa i.ina tions; also A.M E.E Examinations and Government Inspectors’ Exams. Candidates for the above write without delay for free Syllabus, and book of Previous Examination Questions. (Dept. G.) CAMBRIAN MINING SCHOOL, PORTH, Glam. BORING fob MINERALS, &o. Solid Specimens of the Strata obtained. Established 1888. Work guaranteed. J. S. DAVIDSON & SON, St. Bees, CUMBERLAND. The UNIVERSAL MINING SCHOOL Estab. 1883) is conducted by T. A. SOUTHERN (late H.M.I.M.) and H. W. HALBAUM (Greenwell Medallist), men qualified to prepare you for the highest mining positions. The U.M.S. is the surest road to pro- motion. U.M.S men obtain and hold nearly all the best positions. For example, 48 of H.M. Inspectors are U.M.S. men. Lessons by post only. Syllabus and advice free. Write to Dept. C.G., TH8 U.M.S., 50, Connaught Rd., CARDIFF. AND ACCESSORIES. v WAGONS ALWAYS IN STOCK. QUICK DESPATCH. TH0? W. WARD Ltd., Sheffield. Telegrams—“Forward.” Telephones—4321 (6 lines). New Volume of Redmayne’s Mining. MODERN PRACTICE IN MINING. By Sir R. A. S. BEDMAYNE, K.C.B., MSc., M.Iust.C.E., M.Ins\M.E„ F.G.3., His Majesty’s Chief Inspector of Mmes. Vol. III. METHODS OF WORKING COAL. With Folding Plan and other Illustrations. 8vo. 6s. 6d. net. 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JOHN SPENCER LTD., Globe Tube Works, Wednesbury. J. W. BAIRD AND COMPANY PITWOOD IMPORTERS, WEST HARTLEPOOL, YEARLY CONTRACTS ENTERED INTO WITH COLLIERIES. OSBECK & COMPANY LIMITED, PIT-TIMBER MERCHANTS, NEWCASTLE-ON-TYNE. SUPPLY ALL KINDS OF COLLIERY TIMBER. Telegrams—“ Osbecks, Newcastle-on-Tyne.” *#* For other Miscellaneous Advertisements see Last White Page. AND Journal of the Coal and Iron Trades. Joint Editors— J. V. ELSDEN, D.Sc. (Lond.), F.G.S. HUBERT GREENWELL, F.S.S., Assoc.M.I.M.E. LONDON, FRIDAY, AUGUST 21, 1914. The London coal trade continues vigorous, but prices are not so firm as the week before. Huge quantities of Yorkshire qualities are now offering, notwithstanding the Humber ports being open. The dislocation of railway traffic, owing to military transports, has seriously affected coal supplies during the week, and particularly the returning empties. As regards the provincial coal trade, the Cardiff market and those in the north have certainly improved in outlook. This has been mainly due to the withdrawal of the embargo on large steam coal, and to the removal of the triple value bond, whilst another factor has been the decrease in the rates for war risks insurance. High rates for freight are still a great deterrent to the export trade, but the tide appears to have been stemmed and confidence is returning. The market on the Tyne is experiencing a good enquiry from friendly and neutral countries. The demand in the Midlands for households is now falling off, and business generally is very slack. The Scottish situation is unaltered, except that there has been a decrease in the industrial demand in the west. The King has been pleased to give directions for the appointment of Prof. John Cadman, D.Sc., to be a member of the executive council of the colony of Trinidad and Tobago. An offer of 350,000 tons of coal, delivered in London during the autumn and winter at a fixed price respectively of 24s. and 25s. a ton north and south of the Thames has been made to the Government by Messrs. Rickett Smith and Co., G. J. Cockerell and Co., and Sir Arthur Markham. Needless to say the Government have gratefully accepted and have promised to avail themselves of the offer if circumstances necessitate. South Yorkshire coalowners have subscribed £20,000 to the Prince of Wales’ Fund and £2,000 towards the relief of sufferers in Belgium. The British Association’s New Zealand meeting has been cancelled, and members will return home after visiting Brisbane and Melbourne. Owing to the present national situation, the annual conference of the Miners’ Federation of Great Britain, which was to have taken place in October, has been indefinitely postponed. The inquest upon the three men killed by an explosion at the Great Clifton Colliery, Cumberland, on August 4, was concluded on August 14. The jury returned an open verdict so far as the cause was concerned. Mr. Robert Nelson, H.M. electrical inspector of mines, pointed to a pump motor as a possible cause.