Transactions Society Naval Architects and Marine Engineers, Vol. 28, 1920. Plate 20 
To illustrate paper on “Economical Cargo Ships—Some Model Experiments,” 
by Alfred J. C. Robertson, Esq., Member. 
PRAUGHT RATIO 438 
(a a) rn AN 
ee ee 
WM. J. ROGERS. LITHO. WASH. D.C 
