1000 THE COLLIERY GUARDIAN. May 17, 1918. CONTENTS. Editorial Articles:— Page The Fuel Problem in the United States ........ 1001 Coal Mines and Excess Profits ................ 1002 Articles :— New American Breakers ...................... 993 New Maximum Prices for French Coals ........ 998 Stone Dusting in Mines ...................... 996 An Instantaneous Outburst of Coal and Gas .... 997 Refractory Materials............................................. 997 Miners and Coal Production .................. 998 Coal Freights to French Ports ................ 998 Refractory Materials in Gasworks.............. 999 Some Recent Decisions under the Workmen's Compensation Act .......................... 999 South Wales Mining Timber Trade ............ 1005 Coal Transport Re-organisation Scheme ........ 1005 Mining Industry and Military Service.......... 1006 Mechanical Stokers for Coke ................. 1007 The Future of Mining Education .............. 1007 Mean Magnetic Declination.................... 1008 The American Coal Trade .................... 1008 Obituary .................................................... 1008 Labour and Wages............................ 1008 Open Contracts ...........................______ 1010 The Freight Market .......................... 1010 Abstracts of Patent Specifications Recently Accepted __.................................. 1012 New Patents Connected with the Coal and Iron Trades _________________................................... 1014 Government Publications...................... 1014 Publications Received ........................ 1014 Letters to the Editors :— National Electricity Supply___ ___................. 1010 Reports of Meetings:— Manchester Geological and Mining Society...... 995 The Coal and Iron Trades ....................1002—1005................ The London Coal Trade ..................... 1002 The Tin-plate Trade................................... 1004 The By-Products Trade _______.................. 1005 Current Science and Technology ................ 998............. Indian and Colonial Notes ................... 1006 Parliamentary Intelligence................... 1006 Law Intelligence ..... .................... 1006............................ Notes from the Coal Fields................... 1007 Coal, Iron and Engineering Companies....... 1010......... Miscellanea:— French Coal for Switzerland ................. 995 Determining Carbon Content in Furnace Fuel ... 996 Patent Fuel and the Price of Pitch—Trade Boards Bill .............................. 998 Coaling at Tampico—Road Transport ......... 1005 Coal Wagons to be Requisitioned........... 1006 Coal Production and Holidays ............... 1010 Coal Merchant Fined <£220—Scottish Mineral Oil —Miners’ Wages ......................... 1014 _____________________________________________ ADVERTISEMENTS. Offices for* ADVERTISEMENTS PUBLICATION— 30 & 31, Fwrnivai Street, Holborn, London, E C. 4. Telegraphic Address—“Colliery Guardian, Fleet, London Telephone—1354 Holhorn. CONTRACT ADVERTISEMENTS : Prices for SPECIAL POSITIONS on application. Prices for ORDINARY POSITIONS:— Single Column (3 inches wide) : For 52 insertions 3s. 9d. "1 per insertion for each ,, 26 „ 4s. 6d. > . , . , ., 13 5s. 3d. ) meh m depth. Double Column (6 inches wide), double the above rates. Three Columns (9 inches wide), three times the above rates. _______________________________________________ Established 1866. PATENTS, DESIGNS, and TRADE MARKS. TTARRIS AND MILLS, -H- Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. 1. Telegraphic Address—“ Privilege, London.” Tel. No.—Holborn 2763. _______________________________________________ ARE YOU GETTING THE BEST OUT OF YOUR COAL 9 A “Lea” V. notch Recorder, by continuously measuring your Boiler Feed Water, would tell you and so help you to —: PREVENT WASTE. THE LEA RECORDER CO. LTD., Deansgate, MANCHESTER. _____________________________________________ ARCHIBALD BAIRD & SON LTD., .-jr K HAMILTON. fTk a*--*^* Telegrams—Excello. Telephone—No 57. — Makers of — ' GUTTA PERCHA PUMP ’O BUCKETS, RINGS & WASHERS. AND ALL COLLIERY REQUIREMENTS. ___________________________________________ W. G. JENKINSON (ESTD. 1882), Chemical Plumber & Lead-Burner, Maher of every description of Lead=worK for Sulphate of Ammonia and By-Product Plant, Saturators, Coils and Ejectors. 43, EYRE STREET, SHEFFIELD. Tel2^»— ASSOCIATION OF PRIVATE OWNERS OF RAILWAY ROLLING STOCK. Formed in 1891 for the Protection of the Rights and Interests of Private Owners. Applications for particulars and terms of membership may be sent to the SECRETARY, Clarence Chambers, Gloucester. The Oldest Diamond Drill Company. Established 1872. PORING for MINERALS. SPEED AND CERTAINTY. CYLINDRICAL “CORES.” THE AQUEOUS WORKS AND DIAMOND ROCK-BORING CO. LTD. Guildford St., York Road, Lambeth, London, S.E. Besides numerous other Important Contracts, completed (in 18 97) the Deepest Boring in the United Kingdom to 3,500 ft. Great Experience in Boring for WATER. The U.M.S. LESSONS BY POST. The best Mining Education. Unapproachable Successes. 52 H.M. Inspectors are U.M.S. Men. — Syllabus free. — THE UNIVERSAL MINING SCHOOL M) 5 0, Connaught Road, Cardiff. Briquette Machinery Ltd., ** Charmouth Street, LEEDS. Machinery for Briquetting Peat, Lignite, Coke, Coal. Iron, Copper, Nickel, Cement; Also Sawdust, Waste Cereals, Offals, Sewage. PATENT COAL DRIER. __________________________________ ...........win —■imh YEADONS’ LATEST PATENTED BRIQUETTE MACHINERY, For Coal, Coke, Iron and other Ores. ____________ YEADON, SON & CO., Engineers, LEEDS, Have a World-wide Reputation, and 40 Years’ Experience, They have supplied MORE BRIQUETTE PLANTS than any other firm in this country. ____________________________ ARMYTAGE & JONES Ltd., SHEAF STREET, SHEFFIELD. RAILS. WAGONS. (For all purposes). (Coal & Ballast). Boiler Tanks. Points and Crossings. CRANES. (Loco & Derrick). Sleepers. Buffer Stops. Buyers of all kinds Steel and Iron Scrap. R. GRAESSER IH CHEMICAL LIU., WORKS, BLACK VARNISH (WOpBnESERVATl’vLC’) CONTRACTORS TO BRITISH AND OTHER GOVERNMENTS. Telegrams: Established 1867. Telephone: “ Graesser, Buabon.” Code ABC 5th Edition. 3 Ruabon. ____________________________________________________________ rt W ■A' Also “ BITSOL ” QUICK TAR BLACKS _____________________________________ W. W. Hill, Son & Wallace Ltd., Elton St., Broughton Bridge, MANCHESTER. ____ ____ ---- ESTABLISHED 1840. - ____________________________ THE KOPPERS’ PATENT BYE-PRODUCT COKE OVENS AND NEW SYSTEM OF RECOVERING THE BYE-PRODUCTS GIVE RESULTS WHICH HAVE NEVER BEEN EQUALLED BY ANY OTHER SYSTEM. _____________ See large advertisement appearing in alternate issues of this Journal. _____________ ! All communications to be addressed to— ; THE KOPPERS’ COKE OVEN & BY-PRODUCT C0M i 301, Glossop Road, Sheffield. ■ TeL No. 1935. Tel. Address—“ Kochs, Sheffield?’ Geo. N. Dixon & Co., 43, Castle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant WANTED. O JI* 8*1 A H IKON & STEEL, of every description. <111K A r COLLECTED WROT, & STEEL, separated or mixed,’ Wiim TURNINGS & BORINGS, heavy, medium & light. BOILERS, for pressure, tanking or scrap. Very highest prices free on rail any district. LEWIS & CO. CARDIFF. ’Phone—3245 (Private Branch Exchange). Telegrams—“ Halcyon, Cardiff.” ______________________________________________ The Sheffield Mercantile Steel Co. Ltd. Napier Street, SHEFFIELD. Telephone Nos.—1114 & 1115 Central. Specialities : Telegrams “ Shemerco, Sheffield.” Alloy and Special Steels for all purposes. __________________ Stop Taking Risks! Highest Efficiency, Longest Service obtained by using only “CHEKKO” BRAKE & CLUTCH LINERS. ______________ CRESSWELLS’ LD., Wellington Works, Bradford. I __________________________________________ JOHN STANIAR & Co7 Manchester, Eng. Wire Weavers & Metal Workers. Established over 100 Years. ________ _________ -------- EVERY REQUISITE. ------------— GAUZES in Silk and Wire. BRUSHES in Bristle, Weed, Fibre or Steel, for every known make of Brush Machine. PERFORA TEO PL A TES in Iron, Steel, Zinc, Brass, Copper. OU ARBS for Engines, Stores, Machines, Strapping, Lifts, &c. AWARD MEDALS—Japan-British 1910, Franco-British 1908. Telegraph—“ Gause, Manchester?’ Telephone—City 3306 __________________________________________ Bridge’s Patent Friction Clutches &< Hauling Installations A SPECIALITY _____SEE ADVERTISEMENT LAST ISSUE, PAGE 975. Sole Makers— DAVID BRIDGE & CO. LTD. Haulage Works, CASTLETON, Manchester. THE Corlett Electrical Engineering Co. Ld. T’phone- IMTTn TOT T’gram— 63 Wigan. “Corlett, Wigan.” Contracts Dept. - Ref. C.D. Manfg & Repairs Dept. - Ref. W.D Stores Dept. - Ref. S.D. S.D Cables and Wires, Metal & Carbon Filament Lamps, Batteries and Accessories. _____________________________________ The HOLDEMRITE is the Strongest (7,000 lb.) and SAFEST thing for safety of Pitshaft, Quarry, Building, Dock and Ship workers. A gang set (6) can be sent on 7 days’ approval. A. HANLEY, Thirtmere, Sheffield. THE ISCA FOODY COMPANY LTD., PLANT $ GENERAL ENGINEERS, Switches,Crossings,Turntables.Water Cranes, Girders, Bridges, Roofs, Pipes, Pumps, Wagons, Tanks, Engines, Boilers, Cranes, Works: NEWPORT, MON. London Office- 53, Victoria Street, S.W. 1. _______________________________________________________ Wanted, for a Colliery in North Wales, a certificated SURVEYOR (by examination), for the duration of the war. Must be ineligible for army.—Apply, Box 7059, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Wanted, by large firm of Constructional Engineers, DRAUGHTSMAN, fully experienced in the design of modern coal washing plant, to take entire charge of department.—Box 7035, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Brattice Cloth. — Gentleman Wanted with influence amongst colliery managers and proprietors, to sell BRATTICE CLOTH on good commission only.—Address, FAIRCIiOUGH & SONS, Bank-lane, Clayton, near Manchester.