B X 60 90 E 



£ }20 m 180 m 120 w 



w go" 60° 30" 0° 30° E 



E 30 60 90 120 ISO- E 



E 150 180 ISO' 120 90 60 W 



W 60 30 0' 30" E 



Plate 3b. Surface-lemperalure ( C) of the world oceans for August. 

 (See Vol. 1. PC. I. p. 140 <■( Hcq.) 



