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SHIP BUILDING PRODUCTS CARNEGIE®S A complete line of structural steel sections for shipbuilding purposes, including Carnegie Beams with their wide, parallel flanges, shipbuilding channels and bulb angles, Carnegie Floor Plate in a raised pattern insur- ing long wear and easy cleaning, and rolled steel plates of every description. The name ‘Carnegie’? has been identified with steel manufacture for nearly three-quarters of a century— a good name to look for on Steel. CARNEGIE STEEL COMPANY Subsidiary of United States Steel Corporation Fathometer VISUAL ECHO SOUNDINGS AFETY at sea demands modern navigating equipment. The Fathometer gives instant knowl- edge of depth beneath the keel. A constant assurance of depth is of vital importance to safe nav- igation. Continuous soundings allow the Navigator to check his position regardless of weather, tides or varying currents. Fathom- eter equipment is now installed upon vessels of the —U.S. Lines, Cunard, North German Lloyd, United Fruit, Standard Shipping, Moore & McCormack, AGWI Lines and many others. Submarine Signal Company 160 State Street :: Boston, Massachusetts :: U.S.A. MANUFACTURERS OF Fathometers for Echo Sounding Oscillators for Submarine Signaling Submarine Receivers for Direction Finding Synchronous Signal Equipment for Distance Finding PITTSBURGH, PA. . Factory and Warehouses FIBORE THE SEAWORTHY ROPE O THE ship owner or operator FIBORE means T sadea insurance. It means that his men are working under the best and easiest conditions. It means less delay in operation and greater safety for his men and his equipment. To the purchasing agent FIBORE means an opportunity for saving, with increased efficiency. To the ship captain FIBORE means depend- ability. It means more “sea-way” or “give.” It means greater reserve strength for emergencies and bad weather. It means a better satisfied crew because they no longer have to “fight” their lines into place. To the man on deck FIBORE means less work with greater safety and comfort. Our WATERFLEX process renders FIBORE thoroughly water-resisting, permanently lubri- cated, and flexible—wet or dry. A WATERFLEX FIBORE hawser will far out- last an ordinary line, as the rotting of fibre— which shortens the serviceable life of rope—is eliminated. These are.not merely advertising statements, but facts, which have been thoroughly proven by many enthusiastic FIBORE users. FIBORE construction is thoroughly protected by basic patents in the United States and foreign countries, and can be identified by the orange and black “Twinyarn” marker appearing on the outside of one strand. Write for descriptive FIBORE folder 46 South Street. New York Branches Jersey City, N. J. and Houston MARINE REVIEW—January, 1931 WAITLOCK CORDAGE COMPANY Chicago, Boston, Kansas City 71