PRESIDENTIAL ADDRESS. 



Lxxxr 



It will be noted from Fig. 5 that it is the nature and direc- 

 tion of the high level circulation between the Southern Anti- 

 cyclone Belt and the Antarctic cyclones that is most in doubt. 



Ocean Currents. — A few notes may here be given as to the great 

 importance of ocean currents in Australasia, in regard to their 

 effect on climate, and the modification of Australian climate which 

 would follow from a stopping of these currents by a greatly 

 extended Antarctic like that of Permo-Carboniferous time. 



