384 THE COLLIERY GUARDIAN. February 22, 1918. CONTENTS. Editorial Articles :— Page A New British Oil Industry ................ 385 Modern Coking Practice .................... 385 Articles :— A New British Oil Industry................. 377 An Up-to-Date Coal Mine Power Plant ....... 378 Pit Timber Dispute ........................ 379 The Manufacture of Silica Bricks .......... 379 Effects of Low-Temperature Oxidation of Coal ... 380 Submarine Mining in Eastern Canada......... 381 Mining Employment Statistics .............. 382 Minnie Pit Explosion ...................... 383 South Wales Mining Timber Trade ........... 386 The American Coal Trade ................... 389 Some Recent Decisions under the Workmen's Compensation Act......................... 389 Toluol from Solvent Naphtha................ 390 Obituary ................................ 391 Military Honours .......................... 391 Labour and Wages......................... 391 Open Contracts ............................ 393 The Freight Market .......................- 393 Abstracts of Patent Specifications Recently Accepted ................................. 396 New Patents Connected with the Coal and Iron Trades ................................... 398 Catalogues and Price Lists Received........ 398 Government Publications.................... 398 Publications Received ..................... 398 Letters to the Editors :— The Yorkshire Colliery Deputies ........... 389 Reports of Meetings:— Mining Institute of Scotland .............. 381 North of England Institute of Mining and Mechanical Engineers ..................... 390 The Coal and Iron Trades .................. 386 —389 The Tin-plate Trade....................... 383 The London Coal Trades .................... 389 The By-Products Trade ..................... 389 Parliamentary Intelligence..................... 383 Indian and Colonial Notes .................... 390 Notes from the Coal Fields.................... 392 Law Intelligence .............................. 393 Monthly List of Recent Coal Literaturr.......... 394 Coal, Iron*and Engineering Companies........... 394 Miscellanea :— Stone Dusting—Electrical Power in Yorkshire— Power Supply Scheme ...................... 379 Combination of Wagon Makers ............... 381 Glasgow Coal Men's Wages................... 382 French Miners' Wages—The Coal Areas of Canada 383 Crown Bars Advanced—High-Speed Tool Steel— Coal in British Columbia.................. 388 Exports of Coal Products................... 391 Coal Mining in New Brunswick—Freights to Ireland................................... 393 Coal Trade Benevolent Association—Exports and Imports of Mining Machinery............... 396 Established 1866. PATENTS, DESIGNS, and TRADE MARKS. TTARRIS AND MILLS, J--"- Chartered Patent Agents, , 34 and 35, HIGH HOLBORN, LONDON, W.C. 1. Telegraphic Address—“ Privilege, London.” Tel. No.—Holborn 2763. The Sheffield Mercantile Steel Co. Ltd. POLDI STEEL WORKS, Napier St., SHEFFIELD. Telephone Nos.—1114 & 1115 Central. Specialities: Telegrams—‘ Shemerco, Sheffield.” Alloy and Special Steels for all purposes. RANTED TO PURCHASE, Iron Scrap and Old Machinery. State District and whether can be loaded Free on Truck. ALSO SEND QUOTATIONS FOR:— IRON ORE, SLAG, OLD SCRAP LEAD, ZINC, and any other Metals on Rails. Box 6852, Colliery Guardian Office, 30 & 31, Furnival-st., Holborn, London,, E.C. 4. LANCASHIRE AND CHESHIRE COLLIERY UNDER-MANAGERS’ ASSOCIATION. 6, Colin Street, Wigan Lane, Wigan (General Secretary: JOSEPH BUTLER). MEMBERS OF THE NATIONAL FEDERATION OF COLLIERY UNDER-MANAGERS OF GREAT BRITAIN. he Council desire to make an earnest Appeal to all Under-Managers who are not yet members of any association to correspond with SECRETARY at the above Address, when Particulars of Membership will be forwarded, and Branches formed at Convenient Centres. rattice Cloth. — Gentleman Wanted with influence amongst colliery managers and proprietors, to sell BRATTICE CLOTH on good commission only.—Address, FAIRCLOUGH & SONS, Bank-lane, Clayton, near Manchester. irst - class Draughtsmen, with good J eneral experience, Wanted by large controlled firm in South York- pply, giving full particulars of experience, and salary required (inclusive of war bonus), to Box 6886, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. anted, Erecting Engineer, with expe- rience in the erection of large coke oven plants, for firm in the Sheffield district.—Apply, giving full experience, salary required, etc., to Box 6970, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. anted, Enginewright (working) for a Colliery in Somerset. Must be accustomed to heavy pumping plant and compressed-air machinery.—Apply, giving references, age, expe- rience and wages required, to Box 6995, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. anted, Post by a disengaged First- class COLLIERY MANAGER, used to opening up in thick and thin coal mines, deep and shallow; also ganister and clay mines ; well up in construction work, with good experience.—Apply, Box 6983, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. 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 foe 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 1897) 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. 5 2 H.M. Inspectors are U.M.S. Men. — Syllabus free. — THE UNIVERSAL MINING SCHOOL ») 50, 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. C.M.A. CORRESPONDENCE SCHOOL (Founded’.bylT. A."O'DONAHUE,F.G.S., F.S.I.). Complete Courses of Postal Tuition suitable for Home Office Mining Exams. FreelSyllabusTrom Secretary,"C.M.A. SCHOOL, Leigh, Lancs. 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. 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 Ltd., Sheaf Street, Sheffield. Situation Wanted.—Secretary to Limited Company of Engineers and Ironfounders, over military age, expe- rienced colliery and ironworks stores, including buying, costs, material and timber quantities, open to good offer.—Box 6992, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. anted, practical Under - Manager (First-class Certificate). Give references, wage, etc. One accus- tomed to pumping preferred. Good prospects for suitable applicant.— Box 6989, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. Wanted, Machine-shop Foreman for large Colliery in South Yorkshire. Applicants must have a good knowledge of general workshop practice, not necessarily colliery experience. Good post for really capable man. No person already engaged on Govern- ment work need apply.—Apply, stating age, experience and salary required, to Box 6981, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. ood practical Mine Surveyor and W DRAUGHTSMAN, above military age, DESIRES POST. Used to thick and thin seams. Excellent references, steady and willing.—Box 6973, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, W.C. 4. Wanted, Competent Certified Surveyor for Colliery in Somerset.—Apply, stating age. experience and salary required, with recent testimonials, to Box 6979, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. eneral Manager required by the VX BIRMINGHAM CORPORATION GAS DEPARTMENT. Applications are invited from gentlemen possessing sound com- mercial qualifications, and the ability and tact necessary to control a large staff. A knowledge of gas manufacture is not essential, but a good general engineering experience and some knowledge of the chemical industry are necessary. Applications (stating age, experience and salary required), which will be treated as confidential, to be addressed to: Aiderman Sir HALLEWELL ROGERS, Chairman of the Gas Committee, Gas Department, Council House, BIRMINGHAM. /Certificated Colliery Manager Desires \y POST as MANAGER or UNDER-MANAGER, in Yorkshire pre- ferred. Experienced to highly-inclined longwall, extensive haulage systems, sinking and pumping, etc.—Apply, Box 6980, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. Wanted, an experienced and competent Technical MANAGER for Coke Oven and By-product Works in West Cumberland, where developments are contemplated. Must be a good chemist and understand thoroughly coking and by-product work in practice and theory. A good salary will be paid tor a suitable man. State age, qualifications and salary required.—Reply, Box 6993, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. Assistant - Manager Wanted for large Limestone Quarry in the County of Durham. Must be practical quarryman with some commercial experience, accustomed to dealing with labour, steady and energetic. Good salary paid to competent man.—Apply, stating age, experience, and enclosing copies of testimonials, to Box 6987, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. Geo. N. Dixon & Co., 43, Castle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. Wanted, Competent Surveyor for group of South Wales Collieries—Apply, with copies only of testi- monials and stating salary required, to Box 6977, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. Wanted, good Second-hand Colliery High-speed VENTILATING FAN, for 60,000 cubic feet per minute.—Price and particulars to, GLYNCOED COLLIERIES, Llanelly. COG lU U I worth double, South O W * V • WALES COLLIERY; 15 million tons d reserves. This is a sound investment rarely met with.—For full particulars, apply Box 6994, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. Important Collieries, Hematite Iron Ore royalties, damp zinc carbonate, DOLOMITE QUARRIES for SALE and WANTED. Buyers ready. Apply— J. R. LOCKWOOD, 18, Bank-street, Sheffield. Principals only. X* A / UA fVWA Colliery, going con- dUCcV/’ /» VW cem, can be BO'UGHT. - Apply, J Box 6990, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Agents will not be replied to. or Sale, Small Coke Breeze, quantity. What offers? Apply—MANAGER, Gas Works, Colne, Lancs. large BY ORDER OF THE PUBLIC TRUSTEE. NORTHERN UNION MINING CO., HARWORTH, BAWTRY, YORKS. To be Sold by Private Treaty, the following :— COLLIERY SINKING PLANT. 2 TIMBER HEAD GEARS and all fixed PIPING. ENGINE and DYNAMO. 2 Pairs of SINKING ENGINES -with Drums, in parts. 2 Percussion BORING MACHINES. 4 STEAM WINCHES. 3 DOUBLE-ACTION PUMPS. 1,500 ft. of 3 in. TUBES, loose flanges. 500 ft. of 8 in. „ ,, „ 500 ft. of 3£ in. „ „ „ Part are galvanised. 500 ft. of 2 in. „ ,, „ 1,400 ft. of 5% in. 120 ft. of 9i in. LINING TUBES. 3,000 ft. of HOLLOW BORING RODS, about 1? in. bore. 120 ft. of LINING TUBES. 7fc in. dia. 7 7 in. SHELL-BORING CHISELS. 4 SINKERS for Boring Rods. 24 HOLLOW BORING HEADS. 1,100 ft. of 8 in. LINING TUBES. 27,000 ft. of HOLLOW BORING RODS, 2 in. bore. 2,700 ft. of „ „ „ liin. „ 600 ft. of 5 in. LINING TUBES. 120 ft. of 5 in. TUBES. 21,000 ft. of 4J in. Internal Diameter FREEZING TUBES. 6,000 ft. of INNER TUBES for same, 1% in. bore. 250 ft. of 4 in. STEAM PIPE fixed on Trestles, with expansion pipe. 1,200 ft. of 2 in. RODS. 6 9J in. BORING CHISELS, near Colliery Store. 60 ft. of LINING TUBES, near Brickyard, in. dia. 30 ft. of „ „ „ „ 5 in. dia. Mr. Jos. Perkin, of Harworth, Bawtry, Yorks, will show the Plant to intending purchaser, by appointment. Tenders are invited for the whole or any portion of the above. The highest or any Tender not necessarily accepted. Tenders, endorsed “Northern Union Mining Co.,” must reach the under- signed on or before Saturday, March 23rd, 1918. W. GORBUTT, Auctioneer, February 16th, 1918. Epworth, Doncaster. anted, two Portable Hoppers to hold 4 to 5 tons coal, high enough to allow wagon underneath; also two smaller HOPPERS.—Box 6996, Colliery Guardian Office, 30 & 31, Fumival-street, Holborn, London, E.C. 4. anted, immediately, 3 large Sinking HOPPITS, of about 3 tons capacity. Send particulars to— CARLTON MAIN COLLIERY CO. LTD, near Barnsley. Sixth Edition. Pp. i.—xxx. + 799. With Frontispiece and 712 Illustrations. Price 28s. net. ORE AND STONE MINING. By Sir C. LE NEVE FOSTER, D.Se., F.R.S., Late Professor of Mining, Royal College of Science. Contents.—Introduction—Mode of Occurrence of Minerals—Prospecting —Boring—Breaking Ground — Supporting Excavations — Exploitation — Haulage or Transport — Hoisting or Winding — Drainage — Ventilation- Lighting—Descent and Ascent — Dressing — Principles of Employment of Mining Labour—Legislation Affecting Mines and Quarries—Condition of the Miner—Accidents—Index. “ Not only is this work the acknowledged Text-book on Metal Mining in Great Britain and the Colonies, but that it is so regarded in the United States of America is evidenced by the fact that it is the book on that subject recommended to the students in most of the mining schools of that country.”—The Times. LONDON : CHAS. GRIFFIN & CO. LTD., Exeter St., Strand, W.C. 2. 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.” *** F°r other Miscellaneous Advertisements see Last White Page. Or MUwnj Guardian AND Journal of the Coal and Iron Trades. Joint Editors— 3. V. ELSDEN, D.Sc. (Lond.), F.Q.S. HUBERT GREENWELL, F.S.S., Assoc.M.I.M.E. (At present on Active Service). LONDON, FRIDAY. FEBRUARY 22, 1918. The London coal trade for the past week has been quiet. Fairly good stocks have arrived and the demand has fallen off. Best house coals are plentiful. The export trade in Northumberland and Durham appears to have undergone very little change. Steam coal pits are fairly busy, but the gas coal col- lieries are quiet and in need of tonnage. The enquiry in Lancashire for house coal is good, and a fair