INSTRUCTIONS FOR USE 



Change 1 to Pub. 607, Instruction Manual for Obtaining Occan- 

 ographic Data, 3d edition, 1968 consists of change pages and 

 additional pages listed below: 



Table of Contents V— XIV 



Chapter B B-l,B-2 



Chapter C C-1— C-4 



C-9— C-13 



Chapter I 1-15,1-16 



Chapter L L-21— L-27 



Chapter M M-1— M-24 



Substitute change pages and insert new pages in basic manual, as 

 indicated by chapter and page number. 



Change 1 will be distributed automatically to the original dis- 

 tribution list only. Holders of all other copies of the basic manual 

 will be required to request issue or to purchase the 1970 changes and 

 additions. 



