CHANGE 1 

 1970 



PUB. No. 607 



INSTRUCTION MANUAL 



FOR 



OBTAINING OCEANOGRAPHIC DATA 



Third Edition 

 1968 



51 



Published by the U.S. Naval Oceanographic Office under authority of the Secretary of the Navy 



V^ H » 



DOCUMENT 



COtWiCT\ON 



For sale by authorized sales agents of the U.S. Naval Oceanographic Office; also by Superintendent of Documents, 

 U.S. Government Printing Office, Washington, D.C. 20402— Price 76 cents 



