408 THE COLLIERY GUARDIAN September 1, 1916. CONTENTS. Editorial Articles :— page Scientific and Industrial Research.............. 409 British Patent Law .......................... 409 Articles :— Coal Mining under the River Waikato and Lake Hakanoa, N.Z............................... 399 Electrical Accidents and their Treatment ....... 400 Surface Plant at Brodsworth Main Colliery ..... 401 Mine Rescue Work in Alberta ............... ... 402 Auxiliary Safety Device for Cages .............. 403 Peat v. Coal for Production of Power .......... 403 Explosibility of Gases from Mine Fires ........ 404 Minins’ and Other Notes ....................... 407 The German Coal and Iron Trades __............ 414 Some Recent Decisions under the Workmen’s Com- pensation Act .............................. 414 Mining Industry and Military Service .......... 414 The American Coal Trade ..................... 414 Trade and the War .......................... 417 Labour and W ages............................ 418 Open Contracts .............................. 418 The Freight MarKet .......................... 419 Coastwise Shipments in July................... 419 Obituary ................................... 419 Abstracts of Patent Specifications Recently Accepted.................................................... 422 New Patents Connected with the Coal and Iron Trades..................................... 424 Government Publications ............................ 424 Publications Received ........................ 424 Current Science and Technology................ 407 Notes from the Coal Fields ................... 415 Coal, Iron and Engineering Companies ........ 419 Stock and Share List............................ 420 The Coal and Iron Trades...................410—413 The Tin-plate Trade .......................... 413 The By-Products Trade __...................... 413 The London Coal Trade ....................... 413 Letters to the Editors :— Mining Scholarships—Prospects for the Winter— Colliery Surveyors—Safety Belts and Shaftmen 415 Miscellanea :— War Office and Miners—Saghalien Coal ........ 400 Institution of Mining Engineers—Molasses Fuel Briquettes ................................. 401 Genoa Coal Market—Italy’s Coal Supplies ....... 409 Freights on Coal for France—By-products from American Coke Plants ....................... 412 Grimsby Coal Exports—Storing Coal Under Water —North Staffordshire Institute of Mining and Mechanical Engineers—American Dynamite in Russia______________.................................... 413 American Coal Production in 1915 .............. 414 Russian Coal Production Premiums ............ 415 Moscow Buys Coal Mines....................... 417 A Coal Mining Loan in Russia ................. 419 Hull Coal Exports—Fuel Economy and Smoke Prevention................................. 424 _____________________________________________________ ADVERTISEMENTS. ADVE^TSSEIWEINTS smd FOBLICATION— 30 & 31, Furnival Street, Holborn, London, E.O. Telegraphic Address—“ Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. CONTRACT ADVERTISEMENTS : Prices for SPECIAL POSITIONS on application. Prices for ORDINARY POSITIONS Single Column (3 inches wide) : For 52 insertions 2s. 6d. insertion for each „ 13 „ 3s. 6d. ) inch m dePth- Double Column (6 inches wide), double the above rates. Three Columns (9 inches wide), three times the above rates. MISCELLANEOUS ADVERTISEMENTS Advertisements are inserted on the last white page or leader page at the following rates :— One insertion ... 10s. Od. per inch per insertion. Three insertions ... 9s. 6d. ,, ,, Six insertions ______ 9s. Od. ,, ,, A reduction of 25 per cent, is allowed on advertisements of second-hand machinery. Situations Vacant and Wanted : One Penny per word, minimum 2s. 6d. (which must be prepaid). Can be received up to TEN o’clock on Friday morning. (A Classified List appears on page 426.) ___________ SUBSCRIPTIONS. 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 :— United Kingdom _____ 26/- (23/6 in advance). Canada ___________ ... 28/- (25/- do. ). Foreign and Colonial ... 30/6 (27/6 do. ). When foreign subscriptions are sent by Money Orders, payable through the Post Office, advice should be sent to the Publishers. ________________________________________ TREFOREST, GLAMORGAN, AND CRUML1N, MONMOUTHSHIRE Established 1866. PATENTS, DESIGNS, and TRADE MARKS. TJARRIS AND MILLS, Chartered Patent Agents, 34 and 35, HIGH HOLBORN. LONDON, W.O. Telegraphic Address—“ Privilege, London.” Tel. No.—Holborn 2763. PATENTS. Advice Free. J- New Inventions, Designs, Trade Marks, carefully and promptly protected at low INCLUSIVE FEES. THE CONSULTING PATENT AGENCY (1880).. __________________ 253, Gray’s Inn Road, London, W.C. VENTILATING FANS AND ENGINES. See Advertisement appearing on front Cover of alternate weeks. THE WADDLE PATENT FAN AND ENGINEERING CO. LTD., Llanmore Works Llanelly VIVIANS BORING COMPANY Miles of Borings ComoleM ja WORK GUARANTEED. .Asf _____________________________________ BORING for MINERALS, &c. Solid Specimens of the Strata obtained. Established 1888. Work guaranteed. J. S. DAVIDSON & SON, St. Bees, CUMBERLAND. __________________________ SMALL APPARATUS to obtain DISTILLED WATER for BATTERY ELECTROLYTE, &c. Write—The Lawrence Patent Water Sterilizer Co. Ltd. Parliament Mansions, Westminster. “CROWN” BOILER COVERINGS of Outstanding Superiority. 96°/o SAYING Intensest Heat cannot Impair. BETETEr UNION WORKS, COOLEY, S VILHT£ OliUO. nr. Manchester. STEEL Rails Roof Bars Pit Props Arches For COLLIERIES and WORKS. THO« W. WARD Ltd., Albion Works, SHEFFIELD. TRY US. ------- ________________________ MARITIME COALING ADMINISTRATION _____________ Development of Coaling Stations. Parliament Mansions, Victoria Street, Westminster, England. RAILS. RAILS. ALL SECTIONS AND ACCESSORIES. Also quantity F.B. suitable for bearers. Sleepers. Timbers. Switches and Crossings. Buffer Stops. Locomotives. Cranes. Wagons. ARMYTAGE & JONES LtdZ Sheaf Street, Sheffield. To Colliery Owners requiring temporary REPRESENTATION FOR PERIOD OF THE WAR. Weil known London firm will undertake duties for NOMINAL EX- PENSES ONLY.—Box 6372, Ccliitiy Guardian Office, 30 & 31, Furnival- street, Holborn. London, E.C. The Colliery Ready Reckoner and Wages CALCULATOR. By JAMES IRELAND. “ Will be the means of I preventing many disputes between pay clerks and colliers.”—Mining Journal. Colliery Guardian Office,. 30 A 31, Furnival-street, Holborn, London. E.C. Cloth limp, price If. 6d.; poet free, It. 7d. ___________________________________________________________ Beiliss & Morcom’s 180 kw. Generating SET for Sale, cylinders 12 in. and 20 in., stroke 10 in., Siemens Dynamo shunt and compound wound 480 to 550 volts.—HELLEWELL te CO., Royal Exchange, Manchester Browett & Lindley 300 kw. Generating SET for Sale, cylinders 16| in. and 31 in., stroke 17 in., dynamo compound wound 480 to 550 volts.—HELLEWELL tt CO., Royal Excnange, Manchester. SOUTH WALES AND MONMOUTHSHIRE SCHOOL OF MINES. FOURTH SESSION COMMENCES 3rd OCTOBER, 1916. rPhe Entrance Examination in (1) Joint Diploma Mining Course, (2) Colliery Engineering Course, and (3) Chemical Engineering Course. will commence on Tuesday. 19oh September, 1916. Candidates must forward their names not later than 15th Septemoer, 1916. For particulars of above Courses, Part-time Courses, and Apprenticeships, ! Apply to the PRINCIPAL, School of Mmes, Trcforest, Glam. _________________________________________________________ COURSES OF INSTRUCTION IN COALMINING AND SURVEYING, Specially prepared to qualify Students for the Examinations for CERTIFICATES OF COMPETENCY As Colliery Managers, Under-managers and Surveyors. Special Course for Colliery Firemen. Write for Booklet (Post Free) to the Secretary, Colliery Manager’s Aspirants* Correspondence School LfilGH, LANCS. Geo. N. Dixon & Co., 43, Castle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. Auctioneers & Valuers to the Engineering Trades. KNIGHT & PARTNERS Ltd. 27, Old Queen Street, Westminster, S.W. CORRESPONDENCE INVITED. SALES conducted in all parts of the Kingdom. ____________________________________________ COAL, /RON & STEEL SHARES. WILLIAM CHAPMAN & COMPANY, Stockbrokers. (established since 1851). Cavendish Buildings, Wheeler Gate, NOTTINGHAM. Special Business in Coal, Iron and Steel Shares. Lists, reports, &c., will be forwarded regularly on application. J. W. BAIRD AND COMPANY, PITWOOD IMPORTERS, WEST HARTLEPOOL, YJBARLY 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. _________________________________________________________ W £ullieui AND Joorraal off the Coal aod Iron Trades. , Joint Editors— J. V. ELSDEN, D.Sc. (Lond.), F.G.S. HUBEKT GREENWELL, F.S.S., Assoe.M.I.M.E. (At present on Active Service). LONDON, FRIDAY, SEPTEMBER I, 1916. The London coal market continues brisk. The pressure for supplies, however, is easier, and the delivery from the depots is overtaking public orders. Slacks are plentiful and prices easier. Seaborne arrivals are increasing. The prompt coal market on the Tyne and Wear has rallied, mainly owing to better arrivals of tonnage. The general tone is quiet. No change in house coal prices in Lancashire is reported, and bunkering requirements are only moderate. In Yorkshire the position is easier for buyers in some cases, but slack is a little firmer and coke tends to become stronger. The pressure is maintained on all the Midland mines. Prices in South Wales have undergone little change. Plentiful supplies in east and west Scotland are causing declines in value. Outward chartering has been more active during the week. Tonnage arrivals are more plentiful, and the number is said to be enbarrassing the Cardiff authorities. The eighty-sixth meeting of the British Associa- tion will be opened at Newcastle-upon-Tyne on September 5, under the presidency of Sir Arthur Evans, M.A., D.Litt., F.B.S., president of the Society of Antiquaries. By a majority of 9,866 votes, the miners in Scotland have rejected the proposal to work six days per week in place of ths present arrangement of 11 days per fortnight. The Institution of Mining Engineers will hold its 27 th annual meeting in the Boy al Technical College, Glasgow, on September 14. Lord Justice Pickford, independent chairman of the South Wales Coal Conciliation Board, delivered his first award upon applications for change in the existing rate of wages. He states that he has very carefully considered the matter, and has come to the conclusion that he must vote against both the applica- tion of owners for a reduction of 15 per cent., and of workmen for an advance of 124 per cent. In the course of conferences, this week, the coal owners and shippers have agreed with the Board of Trade regarding the basis of prices for coal exports to Italian and other Mediterranean ports. We understand that the adjustment of freight rates is being completed.