. 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



OCTOBER 



NORMAL. PRESSURE. 



MEAN PRESSURE.NOON, G.M.T. 1901. 



NORMAL AIR TEMPERATURE. 



OCTO BER 



MEAN AIR TEMPERATURE, NO ON, G.M.T. 1901. 



to' SO 20' 10- If to' 20- 30 



For explanation see Key map 



