INTERNATIONAL ANTARCTIC CO-OPERATION. 



CHARTS OF MEAN SEA LEVEL PRESSURE AND AIR TEMPERATURE. 



FEBRUARY 



NORMAL PRESSURE. 



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



I4O* ISO* 160' 170* I8O* 170* I6(T ISO* 



00 



so* 20" io* o* 10* 20* so" 



30" 20' 10* O* 10* 20* 30' 



FEBRUARY 

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



IK)' l0* 170* 160* 170* 160* ISO 



SO* 4O* 



I4O* ISO* 160* 170* IBO* 170* 160 ISO* 140* 



10 



M 

 



4O* 30" 20 10 0^ 10" 2O" 30 



For explanation see Key m*Lp. 



