1904- 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



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



WITH WINDS AND AIR TEMPERATURES. 

 FEBRUARY 2O I9O4 FEBRUARY 



21 



SO* 20' tO' O' 10' 20* 30' 



4O" 



iso ICQ* (TO iay 170 ieo iso* 



80 



1904 



FEBRUARY 



22 I9O4 



FEBRUARY 



23 



too 160 170 loCT 170 160 ISO 140 



r to 



3O* 4O* 



I4O' ISO* 160* I7O* 180* 170* 160* ISO* 140' 



SO" 2O 10 O* 10 20 



For explanation see Key map. 



