1904- 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON G.M.T. 



WITH WINDS AND AIR TEMPERATURES. 

 FEBRUARY 4- 1904- FEBRUARY 



ISO 160 170 180^ 170 160 ISO 



140' ISO" 160' 170 . ISO" 170' 160 ISO 



3O 2O' 10 O 



10' 20' 30' 



10 20 30' 



1904- 



FEBRUARY 



6 1904 



FEBRUARY 



I BO' 160* 170* 160* 170' 160 ISO* 140* 



I4O' ISO' 160* 170* 180* 170' 160 ISO* 140' 



For explanation see Key map. 



