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50 "TAE MARINE. REVIEW Chas. Cory~ © Son Manufacturers of Mechanical Telegraphs and Engine Bells, Electric Lights, Bells. and Fire Alarm Systems. 286 Spring St., near Hudson NEW YORK CITY Feed Water Filters, Regulators and Engines We make Pressure Regulating Valves for all purposes, steam or water. Our Feed-Water Filter will keep oil out of your boiler. Keep Oil out of your Boiler with the Feed-Water Filter For Marine and of th Berra, T wo Oo ese Filters are Water Engines for Pumping Organs jnuseon the Oceanio THE ROSS VALVE MFC. CO. i' We-can interest you if you use a condenser. QUINTARD IRON WORKS CO. MARINE TURBINES ENGINES, BOILERS AND MACHINERY Office 742 E. (2th St, NEW YORK The Lockwood Manufacturing Co. EAST BOSTON, MASS. ENGINEERS AND MACHINISTS Builders of Steamships, Tow Boats and Marine Engines Repairing of Hulls and Machinery HAVE YOU noticed how most people closely scan the "for HOBOKEN, N. J. EIGHT DRY DOCKS 600, 800, 1,000, 1,200, 1,400, 1,800, 2,000, 10,000 TONS General Repairs on Wooden and Iron Vessels FT. OF 17th STREET Telephone 700 Hoboken HOBOKEN, N. J. N sale' and "wanted" columns of their trade Mattresses paper? Tell them through the Marine REVIEW and Cushions what you want or what you havefor sale. They : ms -- want to know. The cost is a trifle, $1 the 202 Front Street NEW YORK CITY inch. One dollar the minimum. Tietjen G Lang Dry Dock Co. THE ALLEN DENSE-AIR ICE MACHINE Contains no chemicals, only air. Proven by many year's service in the tropics on United States men-of-war, steam yachts and passenger steamers. Two hundred are in daily service on steamers. H. B. ROELKER, 41 Maiden Lane, NEW YORK. Designer and Manufacturer of Screw Propellers. Consulting and Con- structing Engineer. ESTABLISHED 1860 S. FIX'S SONS SUCCESSORS TO S. FIX & SON Steam Flue Welding Works Our work stands government test. Our Welds are perfectly smooth. Write us for prices. Cor. LEONARD AND Winter Sts. ORAM FIX J. W. FIX CLEVELAND, OHIO mao --= on Established 1844 yi' A. SCHRADER'S SON, Inc. oe 32 Rose Street, NEW YORK Manufacturer of ' Submarine Armor and Diving Apparatus We-carry a complete stock of Dresses, Hose and Repair Sundries. ( Improved Bolt Helmet Jl orders filled day received Write for our prices cloth. ~ Price $4.50. By DR. A. STODOLA ZURICH Order from MARINE REVIEW CLEVELAND "Steam Turbines -- An important reference work on scientific Steam Turbine construction with an appendix on Gas Turbines, and the future of Heat Engines. 435 pages 6 x 9 inches, 241 cuts and 3 lithograph tables. Contains Bound in heavy Translated by DR. LOUIS C. LOEWENSTEIN Lehigh University