1904 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



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



WITH WINDS AND AIR TEMPERATURES. 

 FEBRUARY 20 I9O4 FEBRUARY 



21 



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



30 20 10* O 10 20" 30 40 



10 20 30 



1904 



FEBRUARY 



22 1904 



FEBRUARY 



23 



I4O" ISO" 160' 170 180 170 160 ISO' 140 



I4O" ISO" 160" 170" 180 170 160" ISO" 140* 



For explana-tion see Key map. 



