MADE ON THE ATLANTIC OCEAN. 



147 



or if the confraiy, shun its influence. On the north side, 

 the difference of temperature of Gulf and ocean water, is 

 at least 10°, on an average ; but greater in the winter than 

 summer season. On the southern side of the Stream, the 

 difference of temperature is never less than 5°. If any one 

 will only be at the pains of trying the water two or three 

 times in the twenty-four hours, he cannot be mistaken on 

 this subject. 



In other currents than the Gulf Stream, the water is ge- 

 nerally from 2° to 4° warmer than out of the current. 



TABLE IV. 



Temperature of the Air and Water on Soundings. 



