272 PROCEEDINGS OF THE AMERICAN ACADEMY. 



It is seen that the upper anti-trade is shown both by the bal- 

 loons and by the drift of the clouds, the stratified conditions giving 

 place to the southerly wind between 3000 and 4000 meters. There- 

 fore the classic observations of the return -trade, which were long 

 ago made on the Peak of Teneriffe, indicate a general phenomenon, 

 and agree with those obtained over the open ocean by the present 

 expedition. 



