466 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 90 



ATLANTIC OCEAN 



Lat. 50° N. Long. 30° W. 



Means of noon, Greenwich meridian 



700 mm-f 



ATLANTIC OCEAN 



Lat. 50° N. Long. 20° W. 



Means of noon, Greenwich meridian 



700 mm + 



M'ns 



ATLANTIC OCEAN 



Lat. 40° N. Long. 60° W. 



Means of noon, Greenwich meridian 



700 mm + 



63.0 62.2 61.7 



62.2 62.1 62.5 64.3 63.7 



* Mean of 12 monthly means. 



63.7 62.4 63.7 61.2 *62.7 



