Transactions Society Xmal Arclulccts ami Marine fliujiiiccrs. Vol. 2;. i9'Q- 



Plate 4 9 



To illustrate paper on "The Propulsive Efficiency of Single Scrctv Cargo Ships;" 

 by Cnininaudcr IVilliain McEntcc. Consfnicfion Corps. U. S. N.. Member. 



gi (Q r- yQ m <■ K> M —I ^g Ih 



NORRIS PETERS. INC., LiTHO,. WASHINGTON. 0. C, 



