1903 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 

 WITH WINDS AND AIR TEMPERATURES 



JUNE 21 1903 JUNE 



140 ISO 160 170 I8O I7O ISO ISO 



140- ISO' MO" 170- ItO" 170' l0' 



30 20 10 0" 10" 20 



40 30 20 10 



1903 



JUNE 



23 1903 



JUNE 



50 160 170 ISO 170 160 ISO 



I4O' ISO' 160' 170 180' 170 l0 ISO 140 



For explana-tion see Key ma.p 



