I9O3 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 APRIL ae 1903 APRIL 





30' 20' 10" O' 10' 20' 50' 40' 



190,3 



APRIL 



28 (903 



APRIL 



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



4O 3O" 20 



140" ISO' l0' 170' ISO' 170* 160 ISO' 140' 



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



For explanation see Key ma/p 



