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March, 1917 THE MARINE REVIEW 81 Here is the pump for your new pure water system Fully complies with the government re- quirements for the installation of pure water systems on all vessels of the Great Lakes. THE Gardner Duplex Steam Pump DUPLEX STEAM PUMP is made in many different sizes and capacities, the smaller sizes being better adapted to this particular work. Remember—you’ll need a pump before May Ist—don’t delay, get in touch with us at once—we are pump specialists and can give you information that will be of value to you. THE GARDNER GOVERNOR COMPANY Station ‘‘L,’’ Quincy, Illinois, U.S. A. “MAKERS OF DUPLEX POWER PUMPS, AIR COMPRESSORS, ENGINE GOVERNORS” PROVABLE FACTS— | U.S. Metallic Packing IF you want to experiment—you won’t be interested in the WAGER PATENT IMPROVED FURNACE BRIDGE WALL. BUT Ts a ae if you want a bridge wall that has in it five years of making good; a oe bridge wall that is turning the marine industry away from the antiquated fire brick; one that insures less smoke, minimum upkeep, greater efficiency and a uP gag eee references including all the leading railroad, freight and passenger steamer companies, 4 private yacht owners, stationary plants and others—you WILL be Piston Rods and Valve Stems interested in the WAGER BRIDGE. This isn’t argument, or persuasion, or contention. It’s just simple, provable facts. May we prove these facts to you? ROBERT H. WAGER The U. S. Metallic Packing Co., FURNACE BRIDGE WALLS PHILADELPHIA, PA. New York Philadelphia Detroit Write for Catalog New York Office: Singer Building - - - Telephone: Cortlandt 4299 SHERIFFS MANUFACTURING CO. Marine Engine EFFICIENT SCREW PROPELLERS ARE OBTAINED BY USING THE JY SQON vere PROPELLER WHEELS and OVER 30 Guiting in this Country WILL CARRY PROPELLER PROPELLERS DESIGNED BY BLADES THE AMERICAN SCREW PROPELLER CO. Hale Building Philadelphia, Pa. Managing Director RAYMOND E. LOVEKIN Write for Our Catalog and List of Our Clients to fit any hub. MILWAUKEE, WIS. Please mention THE MARINE Review when writing to Advertisers