INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



FEBRUARY 



NORMAL PRESSURE 



MEAN PRESSURE, NOON, G.M.T. 1903. 



0" 20" 30" 



1*0" ISO" 



30' 20' 10' 0' 10" 2O' 30' 



NORMAL AIR TEMPERATURE. 



FEBRUARY 



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



140 ISO' 160" 170 I8O 170 160 ISO 140" 



3O 20 10" 0' 10' 20" 3O" 



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



3O* 20* 10" O* 1 * 20* 3O" 



For explanation see Key map. 



