THE COLLIERY GUARDIAN. January 25, 1918. 180 «SE5“S!1' i ' CONTENTS. Editorial Articles:— Page A Step towards a Ministry of Commerce .... 181 Mining Thin Seams ........................ 181 Articles :— The Design of Low-Voltage Underground Lighting Systems.................................. 173 Coke as Blast Furnace Fuel................ 174 Wire Ropes and Factors of Safety.......... 176 Powerful Tank Locomotives for Scottish Railways 177 Petroleum and Bitumen Prospects in South Africa 178 120-Ton Steel Coal Wagon.................. 179 New Maximum Prices for French Coals ...... 179 Obituary ................................. 184 Government Publications................... 185 South Wales Mining Timber Trade ......... 185 Coastwise Shipments in December........... 185 Coke Oven Developments in 1917 ........... 186 The American Coal’ Trade.................. 186 Miners’ Wages in 1917..................... 187 Labour and Wages......................... 187 The Freight Market ....................... 190 Open Contracts ........................... 190 Abstracts of Patent Specifications Recently Accepted ............................... 192 New Patents Connected with the Coal and Iron Trades .................................. 194 Publications Received .................... 194 The Coal and Iron Trades ..................182—185 The Tin-plate Trade....................... 184 The By-Products Trade .................... 185 The London Coal Trades.................... 185 Current Science and Technology ................ 178 Parliamentary Intelligence.................... 185 ‘ Law Intelligence ........................... 186 Notes from the Coal Fields..................... 187 Monthly List of Recent Coal Literaturr......... 189 Coal, Iron and Engineering Companies........... 190 Miscellanea:— Industrial Crisis in Denmark—Compensation Act and Irish Colliery Workers .............. 176 Lord Rhondda and Miners’ Food—V.M.C.A. Huts —Medals for Miners—Maximum Prices for Iron and Steel.............................. 177 Mineral Rights Duty ...................... 184 Vanadium in Coal Seams—WaterPower and Coal Saving ................................. 188 Distribution of Coal in France .......... 190 The Search for Petroleum—Institute of Metals— Coal for Alexandria—Wages of Cleveland Iron- stone Miners ........................... 194 ADVERTISEMENTS. Offices for ADVERTISEMENTS and PUBLICATION— 30 A 31, Furnival Street, Holborn, London, E.C. 4. Telegraphic Address—‘‘Colliery Guardian, Fleet, London.** Telephone—1354 Holborn. ENEMY ADVERTISING. This Journal is conducted in the interests of British industry and of commercial and technical intercourse between the British Dominions and friendly Nations. Subject to the conditions of Peace, its pages will not be available for assisting the recovery of markets for German and Austrian goods. CONTRACT ADVERTISEMENTS : Prices fob SPECIAL POSITIONS on application. Prices for ORDINARY POSITIONS:— Single Column (3 inches wide) : For 52 insertions 2s. 9d. } per insertion for each „ 13 „ 3s. 9d. ) inch in depth. Double Column (6 inches wide), double the above‘rates. Three Columns (9 inches wide), three times the above rates. 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 ......... 28/6 (26/- in advance). Canada ................. 30/6 (27/6 do. ). Foreign and Colonial ... 33/- (30/- 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. 4. Telegrams—“ Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. Established 1866. PATENTS, DESIGNS, and TRADE MARKS. ARRIS AND MILLS, Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. 1. Telegraphic 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. PORING for JJTNERALS. 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. c reat 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’by T. A. O’DONAHUE, F.G.S.,’F.S.I.). Complete Courses of Postal Tuition suitable for Home Office Mining Exams. Free Syllabus from Secretary, C.M.A. SCHOOL, Leigh, Lancs. YEADONS’ LATEST PATENTED BBIQUETTE 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. ABMYTAGE & JONES Ltd., Sheaf Street, Sheffield. The Sheffield Mercantile Steel Go. Ltd. POLDI STEEL WORKS, Napier St., SHEFFIELD. Telephone Nos —1114 & 1115 Central. Specialities : Telegrams— ‘ Shemerco, Sheffield.” Alloy and Special Steels for all purposes. R. GRAESSER Ltd., cyog BUABON. BLACK VARNISH~( ^PRESERVATIVE0'’) CONTRACTORS TO BRITISH AND OTHER GOVERNMENTS. Telegrams: Established 1867. Telephone: “ Graesser, Ruabon.” Code ABC 5th Edition. 3 Ruabon. W. G. JENKINSON (ESTD. 1882), Chemical Plumber & Lead-Burner, Maker of every description of Lead-work for Sulphate of Ammonia and By-Product Plant, Saturators, Coils and Ejectors. 43, EYRE STREET, SHEFFIELD. Tel2e#03“e~ Yt/FAPS of tlae British Coalfields. ■A.VA. i. Scotland. 2. North of England. 3. South Wales. 4. North Midlands. 5. South Midlands. Sheet, 4s. each; Mounted on Cloth on Rollers, or in Case, 6s. each.—THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival-street, Holborn, London, E.C. 4. THE KOPPERS’ PATENT BYE-PRODUCT COKE OVENS AND NEW SYSTEM OF RECOVERING THE BYE-PRODUCTS GIVE RESULTS WHICH HAVE NEVER BEEN EQUALLED BY ANY OTHER SYSTEM. See large advertisement appearing in alternate issues of this Journal. All communications to be addressed to— THE KOPPERS’ COKE OVEN & BY-PRODUCT CO., 301, Glossop Road, Sheffield. TeL No. 1935. Tel. Address—” Kochs, Sheffield./' Geo, N. Dixon & Co,, 43, Cattle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. WANTED. ft ft n A IRON & STEEL, of every description, h IJ K il F COLLECTED WROT, & STEEL, senarated or mixed. WWIini TURNINGS & BORINGS, heavy, medium & light. MHBHMHM BOILERS, for pressure, tanking or scrap. Very highest prices free on rail any district. HALL, LEWIS & CO. - CARDI ’Phone—3245 (Private Branch Exchange). Telegrams—“ Halcyon, Cardiff.” Bridge’s Patent Friction Clutches & Hauling Installations JHL SPECIALITY _____SEE ADVERTISEMENT LAST ISSUE, PAGE 155. Sole Makers— DAVID BRIDGE & CO. LTD. Haulage Works, CASTLETON, Manchester. LANCASHIRE AND CHESHIRE COLLIERY UNDER-MANAGERS’ ASSOCIATION. 6, Colin Street, Wigan Lane, Wigan (General Secretary: JAMES BUTLER). MEMBERS OF THE NATIONAL FEDERATION OF COLLIERY UNDER-MANAGERS OF GREAT BRITAIN. The 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. Brattice 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. First - class Draughtsmen, with good general experience, Wanted by large controlled firm in South York- shire.—Apply, giving full particulars of experience, and salary required (inclusive of war bonus), to Box 6886, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. anted, for South Yorkshire Colliery, good all-round ELECTRICIAN, used to A.C. and D.C. work. Also good ELECTRICIAN, competent to wind armatures. State age, experience and wages required, and when available.—Box 6949, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. anted, Colliery Electrician, used to A.C. and D.C. Plants, well up in signals, telephones and all colliery work, to take charge of shift.—Apply, stating age, wages required, full details of experience and particulars of exemption, if any, from military service, Box 6950, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Quarry Manager Wanted for Large Road Stone Quarry, near Ludlow, experienced in management of men, suction gas engines, rock drills, and large breaking plants. Salary about £500.—Apply, stating age, present salary, experience, with copies two testimonials, J. C. MACKAY, Hatterall, Hereford. Large Colliery in Midlands Requires YOUNG MAN capable of making and plotting underground surveys. Reply stating age, salary required, with copies of two testimonials.—Apply, Box 6958, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Wanted Enquiries from all the Collieries in the United Kingdom as to our Agency for REPORT BOOKS and FORMS, as prescribed by the Coal Mines Act, 1911.—Full particulars on application to the COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival-street, Holborn, London, E.C. 4. Brickworks.—Post Required as Manager, now or for after the war. Thoroughly experienced in the manu- facture of red, huff, blue, and fire bricks, terra-cotta, tiles, and salt glazed goods. Accustomed to up-to-date progressive methods, able to advise and superintend the erection of new works, holder of Clayworking Diploma.— Box 6963, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Wanted, a Manager to look after a small Colliery. — Apply, Box 6961, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. ire Rope Works Foreman Wanted. One with a thorough experience of the manufacture of wire ropes, combined with a knowledge of engineering.—Apply by letter only, giving particulars of age, previous experience and salary expected, to W. B. BROWN & CO. (BANKHALL) LTD., Globe Works, Rnnkha.ll, Liverpool. Thirst - class Certificated Manager for small Colliery in North Staffs. State salary required. — Apply, Box 6964, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. IN THE MATTER OF TRADING WITH THE ENEMY AMENDMENT ACT, 1916. The Public Trustee invites Tenders for the PURCHASE of 2,500 PREFERENCE SHARES of £1 EACH and £22,300 ORDINARY SHARES of £1 each, all fully paid, in the “ Ceag” Electric Safety Lamp Company (Limited). The issued capital of the company consists of 2,500 Preference shares of £1 each, and 22,500 Ordinary shares of £1 each, all fully paid. The shares offered for tender are, with the exception of 3,600 Ordinary shares, vested in the Public Trustee as custodian, by an order of the Board of Trade dated the second day of February, 1917, made in pursuance of Section 4 of the Trading with the Enemy Amendment Act, 1916. The Company is the owner and lessor of the patents relating to the “Ceag” Miners’ Electric Safety Lamp and is financially interested in the manufacture of the lamp and parts. Before any tender is accepted the proposed purchaser will be required to make a statutory declaration that he is a British subject and that he is not buying for or on behalf of a foreigner, or foreign corporation, or corporation under foreign control. A report upon the result of the past operations and the present position of the company has been made to the Public Trustee by Messrs. Harper Brothers and Feather, Chartered Accountants, and this report can be inspected by those desirous of tendering, either at their office, 35, Great Tower-street, London, E.C. 3, or at the office of the Public Trustee, Kings- way, London, W.C. 2. Forms of tender may be obtained at the office of the Public Trustee, or at the office of Messrs. HARPER BROTHERS & FEATHER, and all tenders will be subject to the conditions set out thereon. All tenders must be delivered in sealed envelopes to the Public Trustee on or before twelve o’clock noon on the 8th day of February, 1918, and must be marked “ Tenders * Ceag ’ Shares,” and successful tenderers will be advised of the acceptance, in whole or in part, of their tenders within one week thereafter. Tenders may be made for the whole or part of the shares. The Public Trustee does not bind himself to accept the highest or any tender, and reserves to himself the liberty to allot shares to several tenderers if he so desires. “ rrtransactions ” for Sale, from 1907 to 1 1917, unbound, with index complete ; all in good condition. Price £10—Apply to “COLLIERY, LANCASHIRE,” Box 6962, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. 4. Wanted, Typewriter, in good condition Particulars and cash price to— SALE, 118, Adnitt-road, Northampton.