INTERNATIONAL ANTARCTIC CO-OPERATION. 



903 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT. 

 WITH WINDS AND AIR TEMPERATURES. 



MARCH 29 I9O3 MARCH 



30 



.40* l0* IO* 170* ISO' 170' 160' ISO* 140' 



SO' 20' 10' 0* 10" 20' 3O' 4O' 



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



40' 30' 20' 10' 0' 10' 20' 30' 40' 



I9O3 



MARCH 



31 I9O3 



APRIL 



140' ISO* 



60 



4O' 



30' 20' 10' 0* 10' 20' 30* 40 



For explanation see Key ma,p. 



