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The Old and th n _.. Old and Modern Steam WENTY-NINE years ago the Mariposa, single screw iron steamer of the Oceanic Steamship Company, cleared San Francisco for Tahiti under steam BABCOCK & WILCOX at an average pressure of 165 pounds from oil fired cylindrical boilers . . . mark- hAapinc Products ing the initiation of oil bumers in trans-Pacific service. Sails were set to take advantage of the trade winds. Water Tube Boilers The new Mariposa and the two other super-liners of the Matson Line will Superheaters enter service between California, Hawaii, New Zealand, and Australia with Economizers Modern Steam at 400 pounds pressure and 650 degrees fahrenheit total temper- Air Heaters ature. . . securing a fuel rate of less than half that of the old Mariposa and indi- Stokers cating the true economy of steam at higher pressures and temperatures. Oil Bumers The Mariposa, Monterey and Lurline will be equipped with Babcock & D clactorice Wilcox Water Tube Boilers, Superheaters, Air Heaters, Desuperheaters, Feed Water Regulators, Oil Burners, and furnaces lined with B. & W. No. 80 Fire- brick. This equipment with its background of three decades of specialized engi- neering experience typifies the progress made in the development of machinery for Modern Steam propulsion. Oil Separators THE BABCOCK &WILCOX 85 LIBERTY ST. C 0 M PANY NEW YORK, N.Y. Vol. 62, No. 2, Feb., 1932, issue of Martne Revinw, published monthly at Cleveland, O. Entered as second class matter at the post office, Cleveland, Ohio, under the act of March 3, 1879. Subscription price $3.00 a year in U. S.; Canada, $4.00; Great Britain, £1; single copies, 35C.