^O-uiiMI'MIMMiMMIiliIMM' 



■ Ill I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1,1 I I 1 1 1 . 1 



Figure 22. Nitrate-nitrogen (/ug-at/liter) concentration at 10 meters; Feb-Mar 1967, for the eastern tropical 

 Pacific. (Reproduced from EASTROPAC Atlas Vol. 2, Ref. 22). 



55 



