April 4, 1913. THE COLLIERY GUARDIAN. 725 Luhric Coal and Ore Dressing Appliances Limited, Engineers and Contractors for COAL WASHING & ORE DRESSING. PERFORATED PLATES IN ALL DESIGNS. TIPPLERS, SCREENS, PICKING AND COAL LOADING SANDS WITH AUTOMATIC LOWERING ARM. Head Office 32. Victoria Street, London, S.W. ANNALS OF COALMINING & THE COAL TRADE. BY ROBERT L. GALLOWAY. Price 25s. net. The Colliery Guardian Co. Ltd., 30 & 31, Furnival Street, Holbom, London, E.C; SOLE MAKERS F. REDDAWAY & Lc? PENDLETON. MANCHESTER. ■> LON DO N OFFICE 5O/l LIME ST., E.C. NEW SPECIAL RULES FOR THE Installation and use of Electricity in Mines. WORKMEN’S NOTICES in connection with the above, under Rule 4, &c., on THEEDAM’S ELASTIC 1 ENAMELLED PLATES (Not Varnished Paper on Plates). on application— C. THEEDAM LTD., DUDLEY. Gillott’s Improved Patent ROTARY COAL-GUTTING See Full Page Advertisement Monthly SOLE MAKERS AND PATENTEES- JOHN GILLOTT &, SON, T.bFlti caster TRFoirlss, BARNSLEY Send for Illustrated Circular B, post free. Yorkshire, England,