Society of Naval Architects and Marine Engineers, publishers of “‘Trans- 
actions of the Society of Naval Architects and Marine Engineers’”’ 
Zeitschrift fur Angewandte Mathematik und Mechanik, publishers of 
“Zeitschrift fur Angewandte Mathematik und Mechanik”’ 
Schiffstechnik, publishers of “‘Schiffstechnik”’ 
T. & G. Allan, Ltd., present publishers of ‘“‘Proceedings of the Univer- 
sity of Durham Philosophical Society”’ 
Oxford University Press 
RALPH D. COOPER, Head 
Fluid Dynamics Branch 
Office of Naval Research 
Washington, D. C. 
