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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. 0 Mi PANY NEW YORK, N.Y 85 LIBERTY ST. MARINE REvieEw—September, 193 1