100 



200 



300 



400 



cc 



2 500 



x 

 I- 



Q- 

 UJ 

 Q 



600 



700 



800 



900 



1000 



38° 40° 42° 



NORTH LATITUDE 



50" 



Figure 136. --Vertical section of dissolved oxygen in milliliters per 

 liter along the 180th meridian; Hugh M. Smith cruise 30 (NORPAC), 

 stations 20-37, July-August 1955. Contour interval 0. 5 ml. II. 

 Points indicate observed values. 



124 



