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OUR PASSENGERS HEAT AS THEY WANT - - - - - WHEN THEY W IT Give your passengers a comfortable trip that they'll rave about to their friends. It will be good advertising for your line. The RADIANT ELECTRIC HEATER enables passengers to control the heat in their staterooms to their liking—gives a glow of real hospitality. Economical to install. Furnished in various color combinations. Costs just a few cents an hour for current. Write for Full Details — Now! The sei ares Reem R A D | A N | F E & 2 R | C Model Volts Rating 02B 110 1200 Watt Frame: 14° Wide 1612" High Bae: owe are Bs Frame: 1434'’ Wide—1914"" High Body: 11% Wide—11 34 High—4 Deep be E AT E R Body: 123%” Wide—1714" High—4” Deep > ys dj Approved by Underwriters. SUPERIOR MANUFACTURING COMPANY Carnegie, Pennsylvania REFLEX WATER GAGES Used on all types of boilers by all the Principal Navies of the world ‘*The Water Shows Black’’ ADVANTAGES: Quick and reliable observation of the water level. Safe, sure and durable at high pressure. Not affected by cold air drafts. Most effective protection against injuries to boilers and workmen. Easily applied to all types of gage glass fittings. When filled with WATER the Reflex Gage always appears BLACK. When empty it instantly shows WHITE. Nomistake possible. This feature alone is worth many times the cost of the Reflex. Star Brass Mfg. Co. 53 Oliver Street -::- Boston, Mass. MANUFACTURERS OF Accurate ‘‘Non-corrosive’’ Pressure and Recording Gauges, Revolution Counters, Marine Clocks. Dead Weight Gage Testers. Marine, Safety and Relief Valves for all pressures. Marine Whistles and Sirens. Extra Heavy Renewable Globe, Angle and Check Valves. Send for catalog of Water Gage Apparatus Star Outside Spring Steam Engine Indicators. HIGH GRADE THROUGHOUT SPECIFY AND ORDER THE BEST. Branches: CHICAGO PITTSBURGH NEW YORK MANUFACTURED BY THE JERGUSON GAGE & VALVE Co. WINTER HILL, SOMERVILLE, MASS. Motorship CEMENTKARRIER Equipped with Leathem D. Smith Self-unloading System handling bulk cement in Gulf of St. Lawrence. LEATHEM D. SMITH DOCK CO. 20 N. Wacker Drive Plant Location Chicago, Ill. Sturgeon Bay, Wis. MARINE REview—April, 1931 105