INTERNATIONAL ANTARCTIC CO-OPERATION. 



I " T v" * **** 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



OCTOBER 



NORMAL PRESSURE. 



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



150' i6o* or iso' 170 leo- iso 



30 2O 10 O 10 20 30 



NORMAL AIR TEMPERATURE. 



OCTOBER 



MEAN AIR TEMPERATURE.NOON, G.M.T. I90E. 



MB* I5O - l0 - 170 180- 170" 160 ISO 140' 



I4O' ISO' 160" 170 18O' 170' 160" ISO 



For explanation see Key m.p 



