FIG.08-VERTICAL DISTRIBUTION OF SILICATE IN UPPER 600 METERS 

 AT MONTEREY BAY (AFTER BIGELOW AND LESLIE, 1930), OFF LA 

 JOLLA (FROM UNPUBLISHED DATA BY MOBERG), AND IN OPEN 

 PACIFIC ( CARNEGIE DATA); CARNEGIE CURVE IS MEAN OF 16 VERTI- 

 CAL SERIES OF OBSERVATIONS MADE NORTH OF 20° NORTH LATI- 

 TUDE 



FIG,CI9-MEAN VERTICAL DISTRIBUTION OF SILICATE AT CARNEGIE 

 STATIONS NORTH OF 20° NORTH AND AT STATIONS SOUTH OF 20° 

 NORTH 



FIG C20-VERTICAL DISTRIBUTION OXYGEN, PHOSPHATE, 



AND pH AT CARNEGIE STATION 137 (24'"02' NORTH, 



I46°33' WEST) 



54 



