358 THE COLLIERY GUARDIAN August 25, 1916. CONTENTS. Editorial Articles :— page Nationalisation and the Coal Industry....... 359 The Press Bureau and Ourselves.............. 360 Articles :— American Coal Tipples....................... 349 Belt Conveyors.............................. 350 The Illuminating Power of Safety Lamps ..... 350 Revised Iron Prices ........................ 352 The Bonecourt Waste-heat Boiler ............ 352 The Science of Welding .................... 352 Electrical Distribution in Mines .:......... 353 Book Notices................................ 354 The German Coal and Iron Trades............. 356 Trade and the War .......................... 357 Mining Industry and Military Service ....... 357 Some Recent Decisions under the Workmen's Com- pensation Act ............................ 357 Obituary ................................... 357 Labour and Wages............................ 364 Open Contracts ............................. 368 The Freight Market ......................... 368 Abstracts of Patent Specifications Recently Accepted.................................. 370 New Patents Connected with the Coal and Iron Trades..................................... 372 Government Publications .................... 372 Parliamentary Intelligence ................... 366 Current Science and Technology................. 356 Notes from the Coal Fields .................... 365 Monthly List of Recent Coal Literature......... 367 Coal, Iron and Engineering Companies .......... 368 The Coal and Iron Trades.....................360—363 The Tin-plate Trade ........................ 364 The By-Products Trade ...................... 364 The London Coal Trade ...................... 364 Letters to the Editors :— Invention and Discovery—Fuel for Producer Gas — Surveyor's Certificates — Re Surveyors of Mines—Accidents from Miss-fires .......... 355 Miscellanea :— Grimsby Coal Exports....................... 350 British Coal in France .................... 352 New Russian Coal Combine .................. 354 Plant and Machinery for China ............. 356 The Coal Difficulty in Ireland ............ 357 Mannesmann Tube Works—National Association of Colliery Managers....................... 362 Deputation to the Board of Trade .......... 364 Cambrian Mining School, Perth—Labour and Coal Prices ................................... 368 Hull Coal Exports—Soldiers in Mines ........ 372 ADVERTISEMENTS. Offices for ADVERTISEMENTS and PUBLICATION— 30 A 31, Furnival Street, Holborn, London, E.C. 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. } per inBertion for each „ 13 „ 3s. 6d. ) mch 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 374.) 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. 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. IT ARRIS AND MILLS, Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. Telegraphie Address—" Privilege, London.” Tel. No.—Holborn 2763. 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. BORING foe •^JINERALS. SPEED AND CERTAINTY. CYLINDRICAL “CORES.” THE AQUEOUS WORKS AND DIAMOND ROCK-BORING Co. LTD. Guildfgrd Stm 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 Cambrian School of Mines, CEMETERY ROAD, PORTH, GLAM. WILLIAM THOMAS, M.Inst M.E., F.G.S., M.R., Society of Arts. Tutors—Staff of Highly Qualified Instructors in all subjects. An University Training at Your Own Home. Instruction and Lessons by Post for Mine Managers, Surveyors, Electricians, and Mine Inspectors. Since the coming into force of the New Mines Act 525 Students of this School have been qualified as First and Second-class Mine Managers. 74 students have passed the Home Office Surveyors’ Exam.; 30 students are now Mines Inspectors. 3,251 students passed. Fireman’s Exams. Candidates for the above write without; delay for free Syllabus, and book of Previous Examination Questions. (Dept. G.) CAMBRIAN MINING SCHOOL, PORTH, Glam. 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. 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 (W‘) 50, Connaught Road, Cardiff. YEADONS’ LATEST PATENTED BRIQUETTE MACHINERY, For Coal, Coke, Iron and other Ores. YEADON, SON & CO., Engineers, LEEDS, Have a World-wide Reputation, and 38 Years’ Experience. They have supplied MORE BRIQUETTE PLANTS than any other firm in this country. STEEL Rails Roof Rars Pit Props Arches For COLLIERIES and WORKS. THfls w. WARD Ltd., Albion Works, SHEFFIELD. TRY US. ------- MARITIME COALING ADMINISTRATION Coal Bunkering Arrangements. 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 Ltd., Sheaf Street, Sheffield. Demy Octavo, 176 pages, Cloth. Price 6s. 5d 45 Original Photographs and Diagrams. (post free). Miners’ Nystagmus Its Causes and Prevention, By T. LISTER LLEWELLYN, M.D., B.S. (Lend.), 4c. WITH A PREFACE BY Professor J. S. HALDANE, F.R.S., M.D., AND A LEGAL APPENDIX BY DOUGLAS KNOCKER, M.B., Barrister-at-Law THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival-street, Holborn, London, E.C. Geo, N, Dixon & Co., 43, Cattle 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, IRON & STEEL SHARES. WILLIAM CHAPMAN & COMPANY, Stockbrokers. (established since 1851). Cavendish Buildings, Wheeler Cate, NOTTINGHAM. Special Business in Coal, Iron and Steel Shares. Lists, reports, &c., will be forwarded regularly on application. To Colliery Owners requiring temporary REPRESENTATION FOR PERIOD OF THE WAR. Well known London firm will undertake duties for NOMINAL EX- PENSES ONLY—Box 6372, Collietv Guardian Office. 30 & 31, Furnival- street, Holborn, London, E.C. Manager, First Class, Wanted ly for colliery drawing 1,000 tons per week, but developing quickly; must have good electrical, coal eutting, pumping, and main and tail haulage experience.—Apply, with references, stating how soon at liberty, to Box 6497, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. VALanted at a Warwickshire Colliery, a j ▼ thoroughly practical man to take charge of all electrical plant (d.c.), surface and underground; good wages to a good man.—Apply, stating age and experience, to Box 6501, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. anted Electrician for Colliery and V V Coke Ovens, 3 phase modern plant.—Written applications, stating age. experience, and wages required, to BISPHAM HALL COLLIERY CO., Orrell, near Wigan. 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 LBIGH, LANCS. UNIVERSITY OF BIRMINGHAM. SCHOOL OF MINING. Professor..................JOHN CADMAN, C.M.G., D.Sc., F.G.S. LeTcronom^MiSowand}J- L' JEFFERY, A.R.S.M , M.Inst.M.M. LeCSnr" yins °al W. HULSE, B.Sc. Lecturer in Mine Rescue Work A. H. CLARK, B.Sc. THE SESSION COMMENCES ON OCTOBER 3rd, 1916. The School of Mining meets the require- ments of those who intend to become Practising and Consultative Mining Engineers, Petroleum Technologists, Colliery Managers, Managers of Metal Mines, Teachers of Mining, Mine Surveyors, Land and Estate Agents, Land Owners, Owners of Collieries, and those generally interested in Mines and Quarries. The Degree Course includes instruction in Mathematics, Physics, Chemistrv, Geology and Mineralogy, Mechanical Engineering, Electrical Engineering, Civil Engineering, Mining (Coa), Petroleum and Metal), and Metallurgy, Assaying, and Petroleum Refining. In connection with the Mining Classes there will be frequent visits of inspection to mines in the neighbourhood of Birmingham, and a SUMMER MINING SCHOOL will also be held in the long vacation in some mining district either at home or abroad. The Mining Courses are so arranged as to provide for— Degree Course — 3 vears. Diploma Course —3 years Occasional Mining Students—a complete course in 1 year. A complete Course of PETROLEUM MINING ENGINEERING is given in the University. The course of study extends over three years, and leads to the Degree of B.Sc. Full particulars may be obtained from the SECRETARY of the University. COUNTY BOROUGH OF SOUTHAMPTON. TO COAL MERCHANTS. rphe Corporation invite Alternative JL TENDERS for the supply and delivery at Otterbourne Siding, near Eastleigh, of COBBLES, for six or twelve months. Form of tender and all particulars may be obtained at the Waterworks Engineer’s CJffice, French-street, Southampton. Sealed tenders upon the printed form, and endorsed “Tender for Coal, Waterworks,” must be delivered at the Town Clerk’s Office by twelve o’clock at noon on the 7th proximo. No pledge is given te accept the lowest or any tender. Town Clerk’s Office. R. R. LINTHORNE, Municipal Offices, Southampton. Town Clerk. 21st August, 1916. For Sale, Anthracite Colliery, well equipped going concern, producing best quality coals and capable of considerably increased production ; will negotiate with principals only.— Write in first instance to ‘ COAL OWNER,” Box 6504, Colliery Guardian Office, 30 & 31, Furnival street, Holborn, London, E.C. 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.—HELLE WELL A CO., Royal Exchange, Manchester. FOR SALE. SPECIAL BOILER PLANT. For Sale, Cheap, Two First-class BABCOCK MARINE TYPE WATER-TUBE BOILERS, each of 2,393 sq. ft. heating surface, reinsure for 160 lb. working pressure; together with very good GREEN’S FUEL ECONOMISER, 120 pipes; the whole forming a first-class, compact and up-to date plant. For price and particulars, apply— THOS. W. WARD LTD., SHEFFIELD. Blackett Washer, Two Good Second- hand Barrels for Sale, 30 ft. 6 in. long, 3 ft. 6 in. dia. Also 16 W.I. TUBES, 16 in. inside dia double flanged, 33 ft. long. Two BEAL’S EXHAUSTERS, 12 in. inlet and outlet, complete with horizontal engine, direct coupled. One AMMONIA STILL (free and fixed), approx, dimensions 14ft. by 4 ft. dia. and 8 ft. by 4 ft dia. Six SCRUBBERS 20 ft bv 7 ft. 6 in. dia. approx. Apply, TINSLET PARK COLLIERY CO. LTD., near Sheffield. IBrowett & Lindley 300 kw. Generating SET for Sale, cylinders 16J in. and 31 in., stroke 17 in., dynamo compound wound 480 to 550 volts.—HELLBWELL A CO., Royal Exchange, Manchester.