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MARINE RADIO Standard Equipment on many large fleets Many progressive steamship compa- nies operating large fleets have installed RCA Marine Radio on their vessels. 72 -aRe ~aRe RCA radio service includes: i, 5, Equipment. Modern continuous wave transmitting and receiving equipment of the vacuum tube type. Maintenance. Inspections, adjust- ments, repairs, spare parts, renewals, at ports all over the world. Operator Service. Competent, experi- enced personnel selected by RCA de- tailed to your ship. Accounting. Prompt and accurate settling of accounts in all parts of the world. . Licenses. All government licenses se- cured by RCA. RCA coastal stations handle maritime ra- dio traffic promptly and accurately. The RCA Radio Direction Finder is the greatest aid to navigation developed in modern times. Built-on the super-hetero- dyne principle, enclosed loop. All units enclosed in one cabinet. Durable and com- pact—simple and reliable in operation. MARINE RADIO 64 & & & & RADIO CORPORATION OF AMERICA Marine Department 66 Broad Street, New York City BALTIMORE PHILADELPHIA WASHINGTON, SAN FRANCISCO D.C. LOS ANGELES CHICAGO CLEVELAND BOSTON SEATTLE NEW ORLEANS GALVESTON NORFOLK, VA. HONOLULU,T.H. SC WY FA) a (Way SOS St ‘ Ae wa — Sy eS aE Ae gd itges —— ae eS SSS ae ae pase SS YOU LEAVE PORT With a feeling of satisfaction when the vessel is furnished with Supplies that you can de- pend on. 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 the hands of every vessel owner or operator. Forwarded on application. GEO-B-CARPENTER & Co. MARINE SUPPLIES 436 No. Wells St. Chicago Engineering Specialties REFLEX WATER GAGES Used on all types of boilers by all the Principal Navies of the World “THE WATERSHOWS BLACK” ADVANTAGES: Sick 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. When filled with WATER the Reflex Gage always appears BLACK. When empty it instantly shows WHITE. No mistake pos- sible. This feature alone is worth many times the cost of the Reflex. Send for catalog of Water Gage Apparatus. MANUFACTURED BY THE JERGUSON GAGE & VALVE CO. WINTER HILL, SOMERVILLE, MASS. MARINE REVIEW—June, 1927