Gy PSO PEEEN AELOUEY MEU 
Clark Reading Room 
A Pennsylvania State University Publication ye | 
UNDERWATER 
ACOUSTICS 
Proceedings of an Institute sponsored by 
the Scientific Affairs Committee of the 
North Atlantic Treaty Organization and 
conducted by The Pennsylvania State University 
at The Imperial College of Science and 
Technology of The University of London 
July 31-August 11, 1961 
Edited by 
V. M. ALBERS 
The Ordnance Research Laboratory 
The Pennsylvania State University 
University Park, Pennsylvania 
SE 
Distributed by 
PLENUM PRESS 
NEW YORK 
