,1046 THE COLLIERY GUARDIAN. ? ■ ~z 2, ,1916., COHTENTS. Editorial Articles page Coal Supplies for France ............’.......... 1047 Ignition of Firedamp ......................... ..1048 Articles:— _ . . ■ Coal and Shipping ................................ 1037 Some Effects of Earth Movement on the Coal Measures of the Sheffield District,, &c.—Part II. 1039 Mine Managers’ Examinations .......... ............ 1042 “ The Warden” Portable Adjustable Stove ........... 1043 The American Coal Trade ......................... 1043 Supply of Coal to France... . ................... 1043 The German Coal and Iron Trades .................. 1044 Mining Industry and Military Service .. . .... 104$ Ball Bearings for Mine Motors.................... 1045 Miners’Wages...................................... 1045 Trade and the War .... .......................... 1048 Air Locks at Mary Pit, Lochore ................... 1052 Some Recent Decisions under the Workmen’s Com- pensation Act ............................. 1053 The Freight Market ............................ 1055 Labour and Wages .......................... 1055 Coastwise Shipments in April ................... 1055 Open Contracts ................................... 1056 Obituary .................................... 1056 Abstracts of Patent Specifications Recently. Accepted............................... 1058 New Patents Connected with the Coal and Iron Trades ....................................... 1060 Government Publications ........................... 1060 Publications Received ......................... IO9O Law Intelligence ................................... 1045 Current Science and Technology......................... 1044 Parliamentary Intelligence ............................ 1055 Notes from the Coal Fields ......................... 1053 Coal, Iron and Engineering Companies ........;..... 1056 The Coal and Iron Trades......................... 1049—1052 The Tin-plate Trade ............................... 1052 The London Coal Trade ........................... 1052 The By-Products Trade . .".7’.7’,7.. .77.......... 1052 Reports of Meetings,:— ’ ’ Coke Oven Managers’/Association ................ 1038 The Midland Institute of Mining, Civil and Mechanical Engineers ........................... 1041 Letters to the Editors :— Purchase of Coal............................... 1052 Miscellanea :— Partnership Dissolved—Miners’Relief Societies ... 1040 Merchants Complain About Factors ............... 1044 Egyptian Customs Duties .......................... 1045 Question ,of Coal Prices ........................ 1052 Grimsby Coal Exports ..................... , 1054 Hull Coal Exports ........................... 1056 North of England Institute of Mining and Mechan- ical Engineers—The Surveyors’ Institution and ’Mining Surveyors—Institution of Mining Engi- neers.............................................1060 w,- ADVERTISEMENTS. ' , . Offices for ADVERTISEMENTS and PDBMCATSON— 30 & 31, Furnivai Street, Hoibom, ..London, E.C. Telegraphic Address—“Colliery Guardian, Fleet, Londoti.” Telephone—1354 Holborn. CONTRACT. ADVERTISEMENTS : Prices for SPECIAL POSITIONS on application. Prices for ORDINARY POSITIONS . Single Column. (3 inches wide) : Foir 52 insertions ,2s. 6d. h „e insertion fo-r each ” 13 „ ’ 3s. 63. 5 / mcl1 m tLsPth- 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 Three insertions , ■ Six insertions . 10s. Od. 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-: 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 1062.) . - Established 1866. PATENTS, DESIGNS, and TRADE MARKS. Harris and mills, Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. . , L Telegraphic Address—** Privilege, London.” Tel. No.—Holborn 2763. From £150 to £200 required for working capital to develop small landsale colHerv in the Midlands.—For further particulars, apply PERCY H. HENSHAW, Incorporated Accountant, 15, Long Rew, Nottingham. ^1|Tanted for large South Wales Colliery, • W capable (ineligible) man to take charge of the maintenance of Uev* electric accumulator miners’ lamps; good pay to suitable man — Annlv giv’ng full particulars of experience, wages required, &c., to Box 6423 Colliern Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. ’ To Colliery Owners requiring temporary ' representaticn for period of the war; well known London firm will Tindertake duties for nominal expenses only.—Box 6372, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. __ 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 FOR J^INERALS. SPEED AND CERTAINTY. CYLINDRICAL “ CORES.” THE AQUEOUS WORKS AHD DIAMOND ROCK-BORING Co. LTD. Guildford; 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, FORTH, GLAM. .. WILLIAM THOMAS, M.InstM.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 coining 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’Exain/; 30 students are now Mines Inspectors. ■ ■■ ■ ■ • •> -■■■<>■ Candidates for the above write without; delay for free Syllabus, and book of Previous Examination Questions. . - ._•••• (Dept. C.) CAMBRIAN MINING SCHOOL, PORTH, Clam. 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. 5 2 H.M. Inspectors are U.M.S. Men. 1 ' — Syllabus free. — - THE UNIVERSAL MINING SCHOOL (^t) 50, Connaught Road, Cardiff. AUCTIONEERS and VALUERS TO THE ENGINEERING TRADES. KNIGHT & PARTNERS 31, Old Queen Street, Westminster, S.W. SALES conducted in all parts of the Kingdom. INCREASE STEAM CAPACITY OF BOILERS. water HEATER’SOFTENER- c°mbined . Utilise Exhaust Steam or Gases. Write— The Lawrence Patent Water Softener, &o., Co. Ltd., PARLIAMENT MANSIONS, WESTMINSTER. 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. j They have supplied MORE BRIQUETTE PLANTS than any other firm in this country._ STEEL 1 For COLLFERIES Rails I • • and WORKS. Roof Bars liHO’ W. WARD Ltd, Pit PrODS I ' Albion Works, | SHEFFIELD. Arches TRY US Geo. N. Dixon & Co., . 43, Castle Street, Liverpool, < Auctioneers find ffaluers^ COLLIERIES, Urickwprks & Mining Plant. coal, iron & lsteel shares. WILLIAM .CHAPMAN & COMPANY, ■ '. • Stockbrokers. ’ ' y (ESTABLISHED SINCE 1851). . Cavendish Buildifigs, Wheeler Gate, NOTTINGHAM. r - Special justness in „Coalp.Iron and Steel Shares. :l ■Lists,-reportsy &0.:, will- be- forwarded regularly on application. HATFIELD MAIN COLLIERY COMPANY. ^PLENDID. and .satisfactory progress with the latest of the new pits in the Doncaster coal field. rpHE important discovery recently announced is natu- ;-L‘ .rally-attracting" considerable attention to this Com-’ pany’s shares, and .their prospects are now very bright. VWE are.-afyle to secure a limited ^number of shares 1 ’ and? invite early enquiry JI interested, when full particulars will be feent^ • . 7 WILLIAM OfiAPfikAfi & COMPANY, j - ‘— STOCKBROKERS, —-------- Established since. 1851: . . Telephones—4281 and 4282. ■ • 7 Lfi' ■ "7 ' ■ "HULL'.-. 7 ' -■ ■; . . By order:of Messrs’-: &.Pearson£ Son Ltd. ' • . • = eo. N. Dixon & Co. will Sell by Auction \JT ori TUBSbA’E.tWBDNESDAY, and THURSDAY, JUNE 20th, 21st, arid 22rid,:at eleven o’clock prbn)pt eacli dav, • .. . -^ - ‘ ' THE CONTRACTORS’ PLANT now lying at .the King George-Dock which has been used in the construction of the dock, comprising five LocoB,;;5-ton Steam Loco. Crane,6Gas Engines, Concrete-Mixers, Electric"’Winches, -Portables, Boilers, Road Roller, -Nayyies, and,general plaint of . 1