I'rdiisai lien.': Socii'ly Xauil Architects niid Marine Engineers, l-'ol. .?/, IQIQ. 



Plate 48 



To illustrate paper on "The Propulsive Efficiency of Single Scrczv Cargo Ships." 

 hy Commander William McJintee. Construction Corps. U. S. N.. Member. 



V n~ 



NORRIS PETERS. INC.. LITHO.. WASHINCTON, D. C. 



