INTERNATIONAL ANTARCTIC CO-OPERATION. 



I9CK 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 APRIL 30 1903 MAY 



l70 ' l60 ' ISO' 140" 



10" 20" 30" 



140' ISO' 160' > 170' ,180' 170" 160' ISO' 



30' 20^ 6f*0 0" 10' 20' 30* 



1903 



MAY 



1903 



MAY 



1*0" tSO" 160" 170" ISO* 170" 160" ISO 



30" 20" 10" O" 10" 20" 3O" 40" 



140" ISO" 160' 170" #0' 170" 160" ISO* 140" 



* '^,c 



3O* 20" IO" O" 2C 30* 40* 



For explanation see Key map. 



