INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



JUNE 



NORMAL PRESSURE. 



MEAN PRESSURE.NOON, G.M.T. I9O3. 



MO* ISO* 160* 170* ISO* 170 I8 ISO 



no . no 



JO" 2O" 10* 0* 10" 2V 30* 40" 



I4O* ISO" 160" 170* 180* 170* ISO ISO' 



NORMAL AIR TEMPERATURE. 



JUNE 



MEAN AIR TEMPERATURE,NOON, G.M.T. 1903. 



I4O* ISO* 160* 170' 160* 170* 160 ISO* 140" 



ISO" 160" 170* ISO" 170" 160" 150" 



3O" 20 



For explanation see Key map 



