August 28, 1914. THE COLLIERY GUARDIAN. 487 <5d WOOTTON BROS. LD., COAL tJo- TeU^aco^Vfte'' SCREENING & CONVEYING plants. Works: COALVILLE. CLAY PLANT. STEAM and ELECTRIC DRIVEN HAULING and PUMPING PLANTS. STRUCTURAL IRONWORK. General Castings and Smiths’ Work. PIT HEAD GEAR Pit-Head Pulleys, Cages, TIPPLERS, ENGINES, For Winding, Hauling, &c STEAM & HYDRAULIC LIFTS. Brick Machinery. Grinding Pans. CHAIN & ROPE HAULAGE. STEAM and'HAND Brick & Tile Presses. ELECTRICALLY OR.VEN £1 Haulage & Shaft Pulleys. Friction Clutches. Turntables. Tanks. Ridge Tile & Sanitary Pipe Making Machines. GIRDERS. COLUMNS. ROOFS. BUILDINGS. LONDON OFFICE S, Masons Avenue, Basinghall Street. OXYGEN. THE BRITISH OXYGEN CO. LTD., The oldest and most extensive Oxygen producing and distributing business in the World. Factorios In all Industrial Centres equipped exclusively with modern liquid air plants producing Oxygen of unrivalled purity, tiu only residual being a trace of Nitrogen, as sanctioned and recommended by the Home Office Order of May 4th, 1912, for use with RESCUE APPARATUS. HAVE ftWENft W,TH OR WITHOUT GOKE UVEM5 RECUPERATORS (SEMET-SOLVAY SYSTEM), AND ‘ DIRECT' SULPHATE RECOVERY PLANT. ADDRESSES OF THE COMPANY’S WORKS : LONDON..... Elvbbton Street, Westminster, S.W. „ ... Tunnel Avenue, East Greenwich, S.E. BIRMINGHAM Saltley Works. CARDIFF ... East Moobs. MANCHESTER Great Marlborough Street. SHEFFIELD Celtic Wobks, Savile Street. NEWCASTLE- ON-TYNE... Walker Gate. GLASGOW ... Rosbhill Works, Polmadie. SYDNEY ... N.S.W. THE COKE OVEN CONSTRUCTION CO. LTD., SHEFFIELD. FFRANCIS W. HARRIS & Co. 1 Books on Goal Mining Specimen copies can be seen at the Offices of the “Colliery Guardian.” s. d. Analyses of British Coals and Coke. By Allan Greenwell, F.GS.andJ. V. Elsden, F.G.S., D.Sc. (Lond.) .......... 10 0 Annals of Coalmining: and the Coal Trade. By R. L. Galloway. First and Second Series, 16s. each net, or the two volumes together ........................................ net 25 O Coal and Coalmining. By the late Sir Warington W. Smyth. Revised and extended by T. Forster Brown ... (postage extra) 3 6 Coal-Cutting by Machinery in the United Kingdom and America. By Sydney F. Walker and A S. E. Ackermann. Two vols , 1 Os. net, or separately.................... 5 0 Coal Dust Experiments, British. A Record of the First Series of Experiments conducted by the Committee appointed by the Mining Association of Great Britain ... (by post, 1 Os. 7d.) 10 0 Coal Dust Experiments, French. Abstracted Translation. (By post. Is. l^d.) ................................. 1 o Coal Dust Experiments, American. Abstract. (By post, Is. l£d.) 1 O Coal Dust Experiments, Austrian. Abstracted Translation. (By post, Is. Ifcd.) ................................. 1 o Coal Trade (History of). By R. L Galloway ............... 1 o Colliery Management (Some Notes on). Series 1,6d., Series 2 0 6 Colliery Manager’s Calculator. By W. Fairley ............ 2 O Colliery Manager’s Catechism. By W. Fairlev ............. 2 0 Colliery Manager’s Handbook. By Caleb Pamely (postage extra) .......................................... net 25 o Colliery Manager’s Pocket Book, Almanac and Diary. Published annually in November ... Cloth 2s., Roan 3s., Calf 4 6 Electric Circuit Problems in Mines and Factories. By E. H. Crapper ......................................... 3 6 Electricity as Applied to Mining. By Lupton, Parr and Perkins 12 O Glossary of Terms used in the Coalfields of Northumber- land and Durham. By the late G. C. Greenwell, Author of “ A Practical Treatise on Mine Engineering ” ........ 2 6 Haulage and Winding Appliances used in Mines. By Carl Volk................................................... 8 6 Mechanical Engineering of Collieries. By T. C. Futers. Vol. 1. 21s. net; Vol. 2, 10s. 6d. net; Supplementary Vol., lOs. 6d. net (postage extra). Miners’ Nystagmus: Its Causes and Prevention. By T. Lister Llewellyn, M.D , B.S. (Lond.) .......(post free) 6 3 Mine Surveying (Treatise on). By Bennett H. Brough ... 7 6 Mining Formulae. By T. A. O’Donahue, M.E., F.G.S., &c., Cloth 10 6 Also in five parts, paper covers ................each 1 6 Practical Coalmining. By T. H. Cockin .................... 4 6 Practical Stone Quarrying. By A. Greenwell, Assoc. M.Inst.C E., and J. V. Elsden, D.Sc.(Lond.), F.G.S............ net 12 6 Recovering Coalmines after Explosion and Fires. By W. E. Garforth................................. Cloth 1 6 Ventilation (Colliery). By J. Sta.iley James.............. 2 o Ventilation Made Easy. By W. Fairley ..................... 0 6 THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, Loudon, E.C. SPECIAL RUBBER GOODS FOR COLLIERIES. BELTS, VALVES, HOSE, BUFFERS, SHEET, RINGS. Wires: “BELTING, BURSLEM.” ’Phone: 279 CENTRAL L BURSLEM, STOKE-on TRENT . Price 3s. 6d. Post Free. A Practical Handbook for Colliery Electricians. ELECTRIC CIRCUIT PROBLEMS IN MINES AND FACTORIES. By ELLIS H. CRAPPER, B.Eng., M.I.E.E., Head of the Department of Electrical Engineering at the University of Sheffield. The Colliery Guardian Company Limited, 30 & 31, Furnival Street, Holborn, London, E.C. THE AVONSIDE ENGINE GO. LTD. BRISTOL. FINEST WORKMANSHIP. 1 Stephens BEST MATERIALS. WORKS LOCOMOTIVES.