INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



JUNE 



NORMAL PRESSURE. 



MEAN PRESSURE, NOON, G.M.T. 1902. 



I4O" ISO' ISO' 170" 180* 170 I8O ISO 140* 



4O* SO' 20* 10* 0' 10" 20* 30' 40* 



1*0* ISO' leo' 170' ISO* 170* 160 180' 140' 



40' 30' 20' 10' 0* 10' 20* 30' 40' 



JUNE 



NORMAL AIR TEMPERATURE. 



MEAN AIR TEMPERATURE,NOON,G.M.T. 1902. 



IO ISO 160* 170 ISC' 170' 160 ISO* 140' 



3O* __ 20' Itr <? 



20' 30' 40' 



I4O* ISO* 160" 170" 180* 170" 160" 150* 140* 



O' 20* 10' O" 10' 20' 30' 



For explanation see Key map 



