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Some distinctive ships equipped with De Laval Oil Purifiers: Malolo Evangeline California Caracas Steel Chemist Hull No. 89 Yarmouth Sunoco Northland De Laval Oil Purifiers Distinctive oil, too— Clean oil furnished by De Laval Oil Purifiers protects the Diesel engines or tur- bines of at least nine of the distinctive ships described in this issue of Marine Review. The De Laval Oil Purifier (regular type) constantly maintains the lubricating ef- ficiency of oil and makes it possible to keep the same oil in service indefinitely. It mini- mizes the cost of lubrication, while im- proving the service rendered by the oil. It insures continuous operation of the engine while guarding against damage re- sulting from insufficient or improper lubri- cation. Study of the engine room equipment of Diesel ships recently built or converted proves that marine engineers now consider centrifugal purification of fuel quite as im- portant as the purification of lubricating oil. The De Laval Vapor-Tight Fuel Oil Purifier is built especially for this service, in two distinct types. Clean fuel oil minimizes wear on cylinder liners, injection feed nozzles, and fuel pumps, and removes the trouble attending the burning of oil containing water. Re- gardless of its previous condition, oil which comes from the De Laval Purifier is clean. Write today for full details as to how De Laval Oil’Purifiers will quickly pay for themselves on your ship, asking especially for Bulletin 106— THE DE LAVAL SEPARAIOR COMPANY 165 Broadway, New York 600 Jackson Blvd., Chicago DE LAVAL PACIFIC COMPANY, San Francisco ALFA-LAVAL COMPANY, Ltd., 34 Grosvenor Road, London, S. W. 1 Types for Lubricating Oil and Fuel Oil MARINE REVIEW—April, 1927 33