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SAMSON SPOT Log Lines Smooth, tough and durable; no adulterating material to stiffen it and decrease strength and durability. Solid braided of extra quality cotton yarn. Uniform in size and quality. Easily identified by the colored spots, our trade mark. We also manufacture flag halyards, lead lines, tiller rope; solid braided cotton cord in all sizes for various marine uses. Ask for catalog and samples. “So I went up aloft to the mizzen top”’ The lookout who sights stormy weather in mid-ocean fears not wind or wave if deck, side and bottom seams are tight. For one hundred years, shipmasters have depended on STRATFORD OAKUM to keep. seams tight against heaviest weather, Stratford Oakum is the world’s best. Manufactured by an organiza- tion whose principal idea is to make oakum better than anybody else can possibly make it. Stratford Oakum ‘‘stays put” in the seams. Economical—wastage is practically eliminated. Saves labor costs in caulking or spinning. ‘Is well-finished, well-tarred, clean and elastic enough to keep the seams tight under all condit'ons. Be sure you use Stratford Oakum George Stratford Oakum Company JERSEY CITY, NEW JERSEY 89 BRoaD STREET Also manufacturers of Cotton Wiping Waste < as ANDREW J. MORSE & SON, Inc. 221 High Street BOSTON, MASS. Established 1837 Diving Apparatus and Submarine Armor Fire Protection Equipment The Invincible Nozzle Catalogues on request GRISCOM- RUSSELL Evaporators—Feed Water Heaters—Extraction Steam Heaters—Generator Air oe ee Oil Coolers—Steam, Air and Oil Separators — Filters — Strainers—Expansion Joints Described in bulletins which will be sent on request THE GRISCOM-RUSSELL COMPANY 285 Madison Avenue, NEW YORK CHICAGO: 20 North Wacker Drive SHIPBUILDERS You are indirectly responsible for the high cost OF SHIPBUILDING Do you wish the service of our marine expert to lower your building cost from 5% to 10% for auxiliary, and from 8% to 15% for non- auxiliary crafts? If so—send for further information: SHIPBUILDING EFFICIENCY ENGINEERING BUREAU P.O. Box 1613 - - Pittsburgh, Pa. Oldman-Magee Boiler Works, Inc. Boilers, Tanks, Stacks, Struc- tural Work and Castings Boiler Repairing Promptly Attended to Day or Night MARINE WORK A SPECIALTY ELECTRIC WELDING Works: 36-40 Illinois Street - BUFFALO, N. Y. MARINE REVIEW—May, 1931 75