ACKNOWLEDGEMENT 



We acknowledge with pleasure the advice and assistance of F. E . Hale, 

 M. A. Pedersen, H. Westfall and R. F. Hosmer, Code 3185, U.S. 

 Navy Electronics Laboratory, throughout the duration of this program. 

 It is also a pleasure to record our appreciation of the interest shown 

 in this work by Mr. B. King Couper, Code 1622B, U.S. Naval Ship 

 Systems Command and by Dr. G. H. Curl, Code 3102, Coordinator 

 of Ocean Sciences, U.S. Navy Electronics Laboratory. 



Srtbur ZD.TUttleJnr. 



