INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



FEBRUARY 



N ORMAL PRESSURE. 



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



l0" I7O' ISO' 170 180 



I6O' 170 180* 170 ISO 



30' 20' 10' 0* 10' 20' 30' 0' 



40- 30' 20' 10' 0* 10' 2<T 30' O - 



NORMAL AIR TEMPERATURE. 



FEBRUARY 



MEAN AIR TEMPERATURE.NOON, G.M.T. 1902. 



For explanation see Key m&p. 



