INTERNATIONAL ANTARCTIC CO-OPERATION. 



1903 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 J U LY 19 I9O3 J U LY 



20 



40' ISO* 180' 170* IBO' 170* 160* ISO' 



40' 



30" 2O" 10* 0" 



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



30' 20' 10' *"30 Z 10' 20' 30' 



I9O3 



JULY 



21 1903 



JULY 



22 



;*0' ISO' 160' 170' ISO' 170' ISO' ISO' 



n 



Sti! 



40' 



30' 2O' 10' 0' 10' 2O' 30' 



HO 1 



- 



^ 



30' 20' 10' O' 10' 20' 30' 40' 



For explain action see Key ma-p. 



