THE COLLIERY GUARDIAN. - , February 25, 1916. CONTENTS. 'Editorial Articles page - The Campine Coal Field ..........;......... 367 ; .Wasted Effort .............................. 367 Articles The Campine Coal Field .................. 357 \Rapid Estimation of OxygOn and Blackdamp ...... 359 ;. ' Colliery Recruiting Corn ts ;........... 360 / .The Supply of Coal in France .............. 361 The Utilisation of Fuel.................... 362 Mine Accidents and Uniform Records ......... 363 The German and Austrian Coal and Iron Trades ... 364 Trade and the War..................... 365 , Approved Safety Lamps: Spring Terminals ...... 365 Some Recent Decisions under the Workmen^ Com- ; pensation Act •>'....................... 365 r Mining and Other Notes .................... 372 Labour and Wages.......................... 374 Open Contracts ............................. 376 The Freight Market .................. :...... 380 Abstracts of Patent Specifications Recently Accepted.................................. 380 New Patents Connected with the Coal and Iron : Trades ...................'.............. 382 r :. Government Publications ............... 382 Publications Received ..................... 382 Law Intelligence .......................... 374 Current Science and Technology................ 364 Notes from the Coal Fields ..................... 375 Monthly List of Recent Coal Literature.......... 377 Coal, Iron and Engineering Companies ........... 378 The Coal and Iron Trades.....................368—372 The London Coal Trade .................... 368 The Tin-plate Trade ....................... 372 The By-Products Trade ... ................ 372 Report of Meeting North of England Institute of Mining and Mechan- ical Engineers .......................... 373 Letters to the Editors ~ inadequate Supplies of Fuel—Geological Specimen Wanted ........................... 374 Miscellanea ,, American-made Briquettes in 1914—Benzol Pro- 7 L duction at American Coke Plants ............ 364 Grimsby Coal Exports ................. 368 : r Partnerships Dissolved..................... 371 Stone Dusting and Mine Explosions—Workmen’s . Compensation and Military Service—The Wagon . . . Pooling ..Question...u. .................. 372 '' 5“' ‘Coal Contract Awarded to a German Firm—Foreign Enterprise in China .................. 375 ;. .Hull Coal Exports—American Anthracite in 1915... 378 ADVERTISEMENTS. Offices for ADVERTISEMENTS and PUBLICATION— 30 & 319 Furnival Street, Holborn, London, E*C- ./Telegraphic Address—“Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. CONTRACT ADVERTISEMENTS : Prices for SPECIAL POSITIONS on application. i Prices for ORDINARY POSITIONS Single Column. (3 inches wide) ; For 52 insertions 2s. 6d. ner insertion for each „ 26 „ 3s. Od. [ F . ■ . , 13 „ 3s. 6d. ) meh in depth. . ; Double Column (6 ipches 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 Three: insertions Six insertions ... 10s. 6d. per inch per insertion. 9s. 6d. „ 9s. Od. „ A reduction of 25 per cent, is allowed on advertisements of second-hand machinery. Situations Vacant and Wanted: Qne 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 384). 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, payable in advance:— ', : a For the United Kingdom ... ... £1 3 6 For Foreign Countries and Colonies £17 6 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. Established 1866. ' PATENTS, DESIGNS, and TRADE MARKS. TTARRIS AND MILLS, Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.O. Telegraphic Address—“ Privilege, London.” Tel. No.—Holborn 2763. ASSOCIATION OF. PRIVATE OWNERS OF RAILWAY ROLLING STOCK. Formed in 1891 for the Protection of the Bights 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. I>,oi:i.\<; fob ^JINEBALS. SPEED AND CERTAINTY. CYLINDRICAL “ CORES.” THE AQUEOUS WORKS aIid DIAMOND ROCK-BORING Co. LTD. Guildford St., York Road, Lambeth, London, S.E. Besides numerous other Important Contracts, completed (in 1897) the Deepest Boririg in the United Kingdom to 3,500 ft. Great Experience in Boring for WATER. The Cambrihn School of Mines, CEMETERY ROAD, PORTH, GLAM. , , Principal: 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 487 Students of this School have been qualified as First and Second-class Mine Managers. 58 students have passed, the Home Office Surveyors’ Exam.; 30 students are now Mines Inspectors. , 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. < I The best Mining Education. Unapproachable Successes. 52 H.M. Inspectors are U.M.S. Men. — Syllabus free. — THE UNIVERSAL MINING SCHOOL ,(%b) 50, Connaught Road, Cardiff. HEADrWRIGHTSON AND CO. LTD., —- FOR — COLLIERY PLANT. See Page Advertisement in February 11 issue. 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 Bars Pit Props Arches For COLLIERIES V V and WORKS. THQS W. WARD Ltd., Albion Works, SHEFFIELD. TRY US, ONLY A FEW LEFT. COLLIERY MANAGER’S POCKET BOOK, - - For 1916. - PRICES. s. d. Cloth 2 0 1 Roan (Gilt) 3 0i Calf (Gilt) 4 6 ■ Postage extra.—Copies are sent by Parcel Post: One copy 4d., and Id. for each additional copy up to 11 lb. THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival-street, Holborn, London, E.C. Expert Advice on all questions arising out of INCOME TAX, “EXCESS” PROFITS TAX, RELIEF to “CONTROLLED ” ESTABLISHMENTS, LOCAL RATES, etc. THE MANUFACTURERS’ ASSOCIATION LTD., 110, Cannon-street, London, E.C. Geo. N. Dixon & Co., 43, Cattle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. /'Certificated Surveyor desires change; experienced in coal and ironstone mines; ineligible, discharged owing ’ to woui.dn; highest references.—Address, Box 6327, Ctlle s Guaratan Office, 30 & 31, Furnival street Holborn, London, E.C. IVAanted, fully qualified Land and Aline y V SURVEYOR for mining engineer’s office in Lancashire.—Reply, giving qualificatior s, age, experience, references, salary required, and when at liberty, to Box 6334, Colliery Guardian Office, 30 & 31, Furnival-stie^t, Holborn, London, E.O. Cc andinavian. Representative. — An Lv extended business campaign is now being arranged with view pf vpenii gup and developing iff British tra le n Scandinavia and establishing permanent representation in each country—Firms desiring to negotiate should write fully to the SECRETARY, Anglo-Scandinavian General Trust and Agency Ltd., 34, Victoria-street, Westminster, London. 117anted for extensive Collieries in South V V Wales, a CHIEF MECHANICAL ENGINEER; applicants must have extensive experience of all colliery, machinery, including generating and distribution of electricity, and must also be capable, from past experience, of organising work and labour; they must also have had experience and be prepared to supervise coal cutting and conveying. • machinery underground, and be responsible for the installation and super- vision of all underground mechanical plant, a’so to superv se the whole of the surface labour at the collieries ; a liberal salary will be paid to asuitable man.—Box 6335, Colliery Guardian Office, 30 St. 31, Furnival-street, Holborn, London, E.C. (T nder-Manager wanted for a Colliery in vJ the Midlands.—Apply, giving full particulars and references* to Box 6337, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. VWanted, Situation as Manager, Foreman y y of wagon makers and wood converting mill; good practice of colliery work: good disciplinarian; over military age.—Box 6338, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. VVTanted at once, Power House Attendant y V for colliery to take charge of shift; must be used to three-phase plant, high speed engines, and mixed pressure turbine.—Apply, giving age, experience, references, &c., to the MANAGER, Sneyd Collieries Ltd., Burslem. W-anted immediately by large Engi- y y neering company on the north east coast; DRAUGHTSMAN DESIGNER, fully competent to design briquetting machinery; non eligible. —Apply, Box 6339, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. VVTanted, Analy st to do work in connec- y y tion with coke ovens and bye products —Apply, stating age. experience, andsalary required, to POWELL DUFFRYN CO., Aberaman Offices, Aberdare. 1 . . ■ 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 and GAS COKE fur six or twelve months. . . Form of tender and all particulars may be obtained at the Waterworks Engineer’s Office, French-street, Southampton. Sealed tenders upon the printed foim and endorsed “Tender for Coal, Waterworks,” must be delivered at the Town Clerk’sOffice by twelve o’clock at noon on the 9th proximo. . ' ' No pledge is given to accept the lowest or any tender. Town Clerk’s Office, B. R. LINTHORNE, Municipal Offices, Southampton, Town Clerk. 2 ’nd February, 1916. VWanted, Tenders for clearing up an y y ' upcast pit from the upper measures to the lower measures —Full particulars can be obtained from the MANAGER of the Gelli Colliery, Ystrad, Rhondda. IV^anted, Tenders for driving a drift V V 80 yards prove the No. 3 seam.—Particulars will be sent on appli- cation to Box 6332, Colliery Guardian Office, 30 & 31, Furnival street, Holborn, London, H O. For Sale, 41 Spring-buffer BallastTrucks, three 12in. cylinder 6 whe 1 coupled LOCO WO I IVES by Manning Wardle & Co. and Hunslet Engine Co.; also7-ton Hand Derrick C ane. 75ft. -teel latticed jib—Box 6336, Clliery Sardian cffice,3p&31, Furnival- street, Holborn, London, E.U. J. W. BAIRD AND COMPANY, PITWOOD IMP OPT EPS, ' V WEST HARTLEPOOL, YEARLY CONTRACTS ENTERED INTO WITH COLLIERIES. OSBECK & COMPANY LIMITED, . PIT-TIXBEB MEBCHANTS, 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* . - HUBEBT GREENWELL, F.S.S., Assoc.M.I.M.E, (At present on Active Service). LONDON, FRIDAY, FEBRUARY 25, 1916. The London trade continues brisk, and the demand for house coal and steam coal is increasing. Supplies are unusually short. Prices are at the maximum, but many well-known qualities are unobtainable. The continuation of the colder weather has further increased the already heavy demand for every kind of fuel. On the Tyne and Wear, little change is to be reported, business still being checked by tonnage scarcity and severe licence restrictions; even spot lots