INTERNATIONAL ANTARCTIC CO-OPERATION. 



1904- 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT. 



WITH WINDS AND AIR TEMPERATURES. 

 FEBRUARY 26 I9O4 FEBRUARY 



29 



l0* ISO' 160' 170* 160* 170' 160' ISO' 1*0' 



190 BO 



ri 



10' 20' 30' 40' 



140 ISO 160 170 180 170 160 150 140 



I9O4- 



MARCH 



I I9O4- 



M ARC H 



1*0' ISO' ISO' 170' 180' 170 160" ISO" 



For explana/tion see Key map. 



