

SUMMARY TECHNICAL REPORT OF DIVISION 6, NDRC 



VOLUME 10 





BASIC METHODS FOR THE 



CALIBRATION OF SONAR 



EQUIPMENT 



INSTITUTION ARCHIVES 

 W.H.O.I. DATA LIBRARY 



WOODS HOLE. MA. 02543 



OFFICE OF SCIENTIFIC RESEARCH AND DEVELOPMENT 



VANNEVAR BUSH, DIRECTOR 



NATIONAL DEFENSE RESEARCH COMMITTEE 



JAMES B. CONANT, CHAIRMAN 



DIVISION 6 

 JOHN T. TATE, CHIEF 



WASHINGTON, D. C, 1946 



