1904- 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES. 

 FEBRUARY 28 I9O4 FEBRUARY 



29 



1*0* ISO' 160' 170" I8O' 170" ISO ISO 140' 



30" 20 !0' 10' 20' 30' 40' 



150 160 170 



ISO 140 



40' 



30' 20" "b 10' 10' 20' 30' 40' 



1904- 



M AR C H 



I I9O4- 



M ARC H 



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



20 6ir IO 0* 10" 20" 3O* 4O" 



8O" 170' 160' ISO' 



0" 1O" 20" 30" 



For explanation see Key map 



