January 10, 1913. THE COLLIERY GUARDIAN 99 oiRADe REG®: TRADE MARK :ss: 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 BANDS WITH AUTOMATIC LOWERING ARM. Head Office 32. Victoria Street, London, S-W. ANNALS OF COALMINING & THE COAL TRADE. BY ROBERT L. CALLOWAY. Price*25s. net. The Colliery Guardian Co. Ltd., 30 & 31, Fnrnival Street, Holborn, London, E.C. SOLE ■ makers F.R EDDAWAY & PENDLETON. MANCHESTER. c^',/ J ’ , : LONDO N OFFICE ' , 50/l LIME ST.,E.C. CO NEW SPECIAL RULES FOR THE Installation and use of Electricity in Mines. WORKMEN’S NOTICES in connection with kthe above, under Rule 4, &c., on THEEDAMS ELASTIC 1 ENAMELLED PLATES i (Not Varnished Paper on Plates). on application— E. G. THEEDAM LTD., DUDLEY. Gillott’s Improved Patent ROTARY C0AL-CUTTIN6 MACHINE. See Full Page Advertisement Monthly SOLE MAKERS AND PATENTEES- JOHN GILLOTT &, SON, Lancaster Works, Send for Illustrated Circular B, post free. Yorkshire, England.