INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



FEBRUARY 



NORMAL PRESSURE. 



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



1*0" ISO* 160" 170* 180" 170" 160* ISO" 140 



ail 



0" 20" 30" 4O" 



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



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



NORMAL AIR TEMPERATURE. 



FEB RU ARY 



MEAN AIR TEMPERATURE, NOON, G.MT. 1902. 



30 20 10* O" 10* 20* 30" 4O" 



I4O* ISO* 160* 176* 180* I/O* 160* ISO* 



30" 20* 10* O* 10" 2O" 30" 40 



For expla,naA ion see Key map 



