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February, 1925 MARINE REVIEW 41 Engineering Specialties REFLEX WATER GAGES Used_on all types of boilers by all the Principal Navies of the World “THE WATERSHOWS BLACK” ADVANTAGES: Quick and reliable observation of the water level. Safe, sure and durable at high pressures. Not af- fected by cold air drafts. Most effective protection against injuries to boilers and workmen. Easily ap-. plied to all types of gage glass fittings. Marine Radio. When filled with WATER the Reflex Gage always appears a a. RCA Marine Radio BLACK. When empty it instantly shows WHITE. No mistake pos- sible. This feature alone is oak —for Economy many times the cost of the Reflex. sees Underwood & Underwood RCA equips ships all over the world. Pictured is the S. S. Cara- bobo, one of the ships of the Red “D” Line, equipped with RCA f ] f : ° oo ettouerie aoen tienes wii Port accommodations, rations, re- pairs and crew replacements ordered by radio hours before land is sighted —time saved! MANUFACTURED BY THE JERGUSON GAGE & VALVE CO. WINTER HILL, SOMERVILLE, MASS. Cargo at sea re-routed to another port—and sold at a higher profit! A distress call sent out by a disabled vessel — immediate assistance sum- moned — protection ! ES xy wk \ 4 BENNY The expense of RCA Marine Radio is slight compared to the savings it effects and the safety it affords. Equip your vessels with RCA Ship Sets as an economy measure. RCA Ship Sets, the most modern YO U marine radio equipment made, are serviced by stations in all parts of With a feeling of satisfaction when the vessel the world. is furnished with Supplies that you can de- pend on. Hig K) That is the kind we have been delivering to the boats on the great lakes for over 80 years. Our General Catalog No. 111 should be in MARINE RADIO the hands of every vessel owner or operator. Forwarded on application. RADIO CORPORATION of AMERICA Marine Department GEO:B-CARPENTER R Co. 66 Broad St., New York City BALTIMORE NEW ORLEANS CLEVELAND a ORFOLK, Va. SEA MARINE SUPPLIES pesbarpe RDS og . PHILADELPHIA PORT ARTHUR, Tex. BOSTON SAN FRANCISCO HONOLULU, T. H. 436 No. Wells St. Chicago LOS ANGELES DI 54 . Wee . P'erse mention Martine Review when writing to Advertisers