INTERNATIONAL ANTARCTIC COOPERATION 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



JULY 



NORMAL PRESSURE 



MEAN PRESSURE.NOON, GMT 1903. 



40* ISO* 160* 170' 180' 170' 160* ISO' 140' 



I4O' ISO' ISO' i70' ISO' 170' ISO* ISO* 140 



4O* 3tf 20' IP* O' 10" 20* 30* 40* 



NORMAL AIR TEMPERATURE. 



JULY 



MEAN Al R TEMPERATURE, NOON, G.MT. 1903. 



50" I60 - 170 ISO' 170 160 ISO" 140' 



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



30 20 10 



10 20 30' 40 



40' 30' 20 10 10 20 



For expla.na.tion ee Key map 



