LXII 



PRESIDENTIAL ADDRESS. 



Fig. 1. 



Curve showing temperature of atmosphere near Melbourne, up 

 to height of 17 kilometres, from meteorograph record obtained by- 

 Mr. H. A. Hunt, Federal Meteorologist. The balloon carrying 

 the meteorograph was released at the Central Weather Bureau 

 Melbourne, on 23rd May, 1913, and fell at 82 miles to E. 23 deg. 

 S., at Yinnar, Victoria. The wind at Melbourne at the time the 

 balloon was started was blowing from the south. ^ 



' Througli tliB kindness of Mr. W. A. Hunt I have been permitted, wliile this address was 

 going through the press, to substitute tliis Australianrecord of the timp'rature up to and aboVe 

 the isothermal layer for the conventional curve which I exhibited at the meeting, the latter 

 curve having been generalized from a number of observations in the Northern Hemisphere. 



