May 11, 1917. THE COLLIERY GUARDIAN. 915 BOVING THE MOST RELIABLE AND EFFICIENT BRITISH MADE PUMP. LARGE MINING PUMP (6 Repeat Orders). 860 g.p.m. 'VINO 755 feet. 1,450 r.p.m. BOVING & CO.LTD.,LONDON. HOVING A C! W. 'll? 2 SMALL MINING PUMPS. 220 g.p.m. 328 feet. 2,900 r.p.m. STEEL WORK PUMP, Medium Pressure. 800 g.p.m. 125 feet. 1,450 r.p.m. • i 2 SINKING PUMPS as shown (Repeat Order). 333 g.p.m. 475 feet. 1,450 r.p.m. BOVIN® STEEL WORK PUMP, Low Pressure. 3,000 g.p.m. 40 feet. 725 r.p.m. BOVING and CO. Limited, HYDRAULIC ENGINEERS, Telegrams : “JENORTEN, WESTCENT.” Telephones : HOLBORN 6420 (3 lines). 56, Kingsway, LONDON, W.C.