110 THE COLLIERY GUARDIAN. July 19, 1918. WET SHAFTS MADE WATERTIGHT BY OUR CEMENTATION PROCESS. SAVES COAL and LABOUR and INCREASES OUTPUT BY DOING AWAY WITH PUMPING. Llay Hall Collieries, Wrexham, 2 wet shafts, linings cemented. Monk Bretton Colliery, Barnsley. Wrexham and Acton Collieries, 2 wet shafts, linings cemented. Wigan Coal and Iron Co. Ltd., Parsonage Colliery, Leigh, Lancs., 2 wet shafts, linings references: cemented. Risehow Colliery Co. Ltd., Flimby, 2 wet shaft linings being cemented. Pinxton Collieries Ltd., Pinxton Collieries, Alfreton, 1 wet shaft lining being cemented. John Brown & Co. Ltd., Rotherham Main Colliery, 2 shafts cemented. SHAFT SINKING BY FREEZING OR CEMENTATION. Llay Main Collieries, Wrexham, 2 shafts sunk by Freezing. SIMON-C AR VES L* MOUNT ST Phone: 8200 City, Manchester (8 lines). WE BUY SCRAP OF ALL DESCRIPTIONS TO ASSIST THE OUTPUT OF ALL MUNITIONS OF WAR -- D Jh r KV TEL.—1242, 1241, 3072. BRANCHES— GATESHEAD, BIRMINGHAM, WOOLWICH, LLANELLY, GLASGOW, LISKEARD. Telegrams: “ Simcar, Manchester.” TRUNK 1013. TELEGRAMS- FERRIC, SHEFFIELD. MARPLE & GILLOTT LTD. SHEFFIELD.