24i4i THE COLLIERY GUARDIAN. July 31, 1914. Wrought Special Joint Iron and Steel Tubes. These Tubes are specially suitable for use in Mines, being both light and strong. FITTINGS OF ALL KINDS SUPPLIED. Improved Albion JUoose Flange Joint. kj; STEWARTS and LLOYDS LTD., for Collieries. Joints are easily connected, and a Tube can be removed without disturbing the run. PRICE LISTS SENT ON APPLICATION. GLASGOW-41, Oswald Street. BIRMINGHAM-Broad Street Chamben. LONDON -Winchester House. Old Broad Street. APPROVED MINERS’ LAMPS, GLASSES. Colliery Stores. W. E. TEALE & CO. LTD. WIXTOX, LANC. Telegrams—“Teale, Swinton, Lane.” Telephone—No. 124 Eccles. rice 3s. 6d. post free. A Practical Handbook for Collkry Electricians. Electric Circuit Problems In Mines and Factories. — BY — ELLIS H. CRAPPER, B.Eng., M.I.E.E., ead of the Department of Electrical Engineering at the University of Sheffield. THE COLLIERY GUARDIAN CO. LTD. 30 & 31, Furnival Street, Holborn, London, E C. NOBODY’S SAFE from an outbreak of fire. Don't let yourself be lulled into a False Feeling off Security—get the real protection of the “ NEW ERA ” 30-GALL0N CHEMICAL FIRE ENGINE. Equal to thousands of gallons of water. “ Your own FIRE ENGINE onyon premises." ALWAYS READY FOR INSTANT USE. Don’t wait for a fire—write now— to-morrow may be too late. Write for full particulars. The Valor Co. Ltd. ASTON CROSS. BIRMINGHAM. Mechanical Engineering of Collieries. --- Bp T. C. FUTERS. - Vol. I., Price 21s. net. Vol. IL, Price 10s. 6d. net. Supplementary Volume, Price 10s. 6d. net. THE COLLIERY GUARDIAN CO. LTD., 30 & 31, Furnival Street, Holborn, London, E.C. {Trade mark rretePHOHe NEngrams &ENTRAL344. MILBURN HOUSE. “LASORT. / (A-B-C-5™ Addition. ' Codes < Li eber?s. ... j BENTLEYS. Limited I ” * N’TRIHIGAI.3.