INTERNATIONAL ANTARCTIC CO-OPERATION. 



903 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT. 

 WITH WINDS AND AIR TEMPERATURES. 



APRIL 14 I9O3 APRIL 



15 



I4O* ISO' ISO* 170" ISO* 170* 160 ISO' 140' 



1*0* ISO' 160' 170' 180' 170* 160' ISO* 140' 



uol 



4O' 30* 20' 10* 0' 10' 20* 30' 40 



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



903 



APRIL 



16 I9O3 



APRIL 



SO 20 IO' 10 20 50' 40 



50' 20' 10' 0' 10' 20' 30' 40" 



For expla.na.tion ee Key map. 



