' 174 THE COLLIERY GUARDIAN. January 28, 1916. COHTEOS. Editorial Articles :— page Coal Exports from the United States Standpoint... 175 Trade Policy and the War ................... 175 Articles :— A Suction Gas Producer Using Bituminous Coal ... 165 Use of Electricity in Mines................. 169 The Utilisation of Energy from Coal......... 170 Cost of Upkeep of Electric Cap Lamps ....... 171 Gas Detector for Miners'’ Safety Lamps ..... 172 Trade and the War........................... 173 Mining and Other Notes...................... 180 Notes on the Uses and Markets of By-Products Obtained from Coke Ovens................... 181 Labour and Wages............................ 186 Obituary.................................... 186 The Freight Market ........................ 188 Open Contracts .......................... 188 Abstracts of Patent Specifications Recently Accepted................................... 189 New Patents Connected with the Coal and Iron Trades .................................... 190 Government Publications .................... 190 Publications Received ..................... 190 Current Science and Technology.................. 183 Notes from the Coal Fields ..................... 183 Monthly List of Recent Coal Literature............ 187 Coal, Iron and Engineering Companies ........... 188 The Coal and Iron Trades.....................176—179 The Tin-plate Trade ........................ 180 The London Coal Trade ...................... 180 The By-Products Trade ...................... 180 Report of Meeting :— The Midland Institute of Mining, Civil and Mechanical Engineers ...................... 167 Letters to the Editors :— Pooling of Coal Wagons—Experimental Fans ... 182 Miscellanea :— Russians Coal and Coke Imports ............. 166 The Association of Colliery Managers in India. 169 Explosives Used in 1914—Hull Coal Exports .. 171 Patents and Designs Act, 1907; Diamond Coal Cutter Company v Mining Appliances Company Limited—Institution of Electrical Engineers : Grants for Research Work—Calendars for 1916— West of Scotland Iron and Steel Institute . 173 The Coal Supply Question—South Wales Institute of Engineers .............................. 180 Explosives and the Supply of Nitroglycerine— Mining Students’ Examinations .............“ 182 Partnerships Dissolved—Coal Supply and Prices... 185 The Pooling of Wagons ...................... 187 Grimsby Coal Exports ....................... 188 Damage of Vessel During Coal Leading ....... 190 ADVERTISEMENTS. Offices for ABVERTISEmENTS gmd POBLBCATIO^- 30 & 31, Furnival Street, Holborn, London, E.O. 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. } insertion for each „ 13 „ 3s. 6d. ) inch in 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. 6d. 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 192). The Oldest Diamond Drill Company. Established 1872. J^ORING for SPEED AND CERTAINTY. CYLINDRICAL “ CORES.” THE AQUEOUS WOBO AKO TOGI-BORm® Co. Lw. Guildford Stb, Yom Boad, Loudon, S.L 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.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 Eirst and Second-class Mine Managers. 58 students have passed the Home Office Surveyors’ Exam.; 30 students are now Mines Inspectors. Candidates for the aoove write without delay for free Syllabus, and book of Previous Examination Questions. (Dept. C.) MINING SCHOOL, PORTH, Clam. 1 Briquette Machinery Ltd., U <1 Charmouth Street, LEEDS. * 1 i I Machinery for Briquetting Peat, Lignite, Coke, Coal, J ' J Iron, Copper, Nickel, Cement; _■ J l I Also Sawdust, Waste Cereals, Offals, Sewage. f 1 | I PATENT COAL DRIER. Lj 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 (%b) 5 0, Connaught Road, Cardiff. For Coal, Coke, Iron and other Ores. YEADOH, SOK ® 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. YEADONS’ LATEST PATENTED MiOUETTE MMIHY, STEEL Bails Boot Bars Fit Props Arches For COLLIERIES V V and WORKS. THQS W. WARD Ltd., 1 J Albion Works, SHEFFIELD. TRY MS, -------- Expert Advice on all questions arising1 out of | ■ INCOME TAX, “EXCESS” PROFITS TAX, | RELIEF to “CONTROLLED” ESTABLISHMENTS, | LOCAL RATES, etc. I the MANUFACTURERS’ ASSOCIATION LTD., I 110, Cannon-street, London, E.C. | Geo. N. Dixon dr Co., 43, Castle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. WAGONS FOR SALE. new an^ Second-hand ten and 12- jW tonners, all in traffic.—Apply, Box 6286, Collier# Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.U Steady, energetic, Second-class Certifi- floated man requires SITUATION, with a good practical underground experience ; good references.—Box 6301, CAlier# Guardian Office, 30 & 31 Furnival street, Holborn, London, E.C. WTanted, Colliery Engineer, good wages V V to suitable man.—State full particulars of experience, age, and salary required, to Bos 6305, Collici# Guardian Office, 30 & 31, Furnival- street, Holborn, London, E.C. ^Wanted, an experienced and capable V V COLLIERY ENGINEER for Robin Hood Colliery, near Wake- fie'd. — Apply, stating full particulars aud experience, to J. & J. CHARLESWORTH LTD., Milnes House, Wakefield. TENDERS FOR COAL AND COKE. rPhe Guardians of the Poor of the Parish X of ST. MARY, ISLINGTON, invite TENDERS for the supply of COAL and COKE to be delivered as ordered at their Institutions in the Parish, during the period to the 31st day of March, 1916 Printed forms of tender (which alone will b received, and which contain conditions of contract) must be obtained from the Clerk personally, or a stamped addressed brief-size envelope may be sent. Sealed tenders endorsed ” Tender for itgns MKCS. —-- APPROVED -- BIKERS’ SAFETY LAMPS, GLASSES. COLLIERY STORES, &c. HTanted for Coalmining Establishment V V in Coronel, South America, qualified MECHANICAL ENGI- NEER with a good knowledge of electrical work, capable of remodelling and improving the plant at mines ; age about 40, must be married and of steady habits, a six o’clock man and a good manager of men ; three years’ engagement; salary £400, £425, and £450 for the first, second, and third years respectively; free unfurnished house, coal and water.—Apply, Box 6293, Cell W Gua dian Office,30&31, Furnival st., Holborn, London, E.C 'Prospecting Borer seeks Engagement, JL Diamond, Shot or Percussion Plant; carbon setting, tool dressing and repairs; any diameter or depth; experience 35,000 ft.; references.— Box 6307, Collier# Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. J. V. ELSDEN, D.Sc. (Lond.), F.G.S. HUBERT GREENWELL, F.S.S., Assoc.M.I.M.E. {At present on Active Service'). LONDON, FRIDAY, JANUARY 28, 1916. The London coal trade is somewhat easier. Best coals are still exceedingly short, and prices are pro- hibitive, bnt there is a better supply of cheaper kinds and wagons are more plentiful. Public orders are falling off, and the depot trade is weaker. In the freight market the recent abnormal rates have been fully maintained, to the detriment of coal export business. At the Tyne and Wear coal markets prompt business is not in a flourishing condition, and prices have been slightly lower; but the forward enquiry has improved. A moderate demand is noticeable in Lancashire, but supplies are still below requirements. This position of affairs is repeated throughout Yorkshire and Derbyshire, j except that in these cases the enquiry is very keen. The Cardiff coal market still suffers from abnormal