INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



J ANU A RY 



N ORMAL PRESSURE. 



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



JO' 20' 10* O' 10* 20' 30' 



it>o* 170* i6<r 



20' 10* 0" 10' 20' 50' 



NORMAL AIR TEMPERATURE. 



JAN UARY 



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



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



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



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



BO BO 



3O" 20 10 2O 3O 



Hulh. London. 



For explna.tion see Key map 



