27 26 25 24 23 22 21 20 19 18 17 



200 — 



300 



400 



a: 





Q 



600 — 



1000 



22° 24° 26° 



28° 30° 32° 34° 



NORTH LATITUDE 

 I60°W 



36° 38° 40° 



Figure 86. --Vertical section of inorganic phosphate in microgram-atoms per 



liter along 160°W. longitude, stations 17-28. Points indicate observed values. 



80 



