1904- 



i INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 JANUARY 31 1904- FEBRUARY 



140- ISO' 160" 170 160" 170 160 ISO' 140" 



1904- 



FEBRUARY 



I4O ISO" ISO" 170 



'O 160 ISO (40 



140* ISO" 160" 170 I8(T 170 160 ISO* 140" 



SO 20 10 O 10" 20" 30' 



4O" 3O* 20 10" O" 10" 20 30" 40 



For explanation see Key ina.p 



