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' 160' 170* ISO' 170* 160* ISO* I4O' 



JUNE 



NORMAL AIR TEMPERATURE. 



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



30 20' 10* 0* IO* 20" 30" 



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



3O" 20* 10* O* 10 2O" 3O 



For explanation see Key map 



