I9O3 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 DECEMBER 18 I9O3 DECEMBER 



19 



I4O ISO" 160 170* ISO '70 160 150 



30' 20* 10" 10 20 30" 



20 30 



I9O3 



DECEMBER 



20 I9O3 



DECEMB ER 



21 



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



20' \ 10 0* 10" 20" 30" 



30* 20" 10" 0" 10" 20 



For explanation see Key uia/p 



