PRESIDENTIAL ADDRESS. 



LXXI 



hemisphere, atmospheric circulation is considerably accelerated. The 

 reason for this will at once be apparent from a study of the curves 

 shown in Fig. 3. 



UJ o 



mi O 



©o 



DECREcS FAHRENHEIT 



9 O) CD t~ lO lO 



o 

 Z 2 



9 o 2 



^ ^i 



CO 



6 



) o o o o o o o 

 il3HN3aHVJ S33a030 



These I 

 mainder of 

 South Pole 



have taken chiefly from Hann, constructing the re- 

 the curves to the right from 60 degrees south to the 

 from data obtained by recent Antarctic expeditions. 



