April 13, 1917. THE COLLIERY GUARDIAN. 735 BOVING PUMPS THE MOST RELIABLE AND EFFICIENT BRITISH MADE PUMP. LARGE MINING PUMP (6 Repeat Orders). 860 g.p.m. 755 feet. 1,450 r.p.m. BOVING & CO. LTD.. LONDON. I ,’BOVING 3.;c?> LTR il - 2 SINKING PUMPS as shown (Repeat Order). 333 g.p.m. 475 feet. 1,450 r.p.m. ltd-l 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. 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.