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NEW twenty page illustrated booklet issued by The Babcock & Wilcox Com- pany outlines the evolution of marine steam propulsion from low pressure plants to the: present economical use of Modern Steam. This booklet is not a catalog nor a highly technical treatise but is a new and under- standable presentation of interesting facts concerning economical ship propulsion from the standpoint of fuel consumption, fuel oil and lubricating oil costs, flexibility of opera- tion and other important factors ... sub- stantiated by actual operating records to illustrate the topics discussed. Those actively interested in operating economy will want this booklet . . . every Naval Architect, Owner and Engineer should find this publication of interest and of value. The edition is limited... write for your copy now. THE... BABCOCK & WILCOX C 0 MA PANY NEW YORK, N.Y. 65 LIBERTY ST. MARINE. REvipw-—October,.1931