1901 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 DECEMBER 13 I9OI DECEMBER 



13 



SO' 170 ISO no 160 ISO' 140 



140' 150' l0' lj'., l0" 170' l0' ISO 140' 



4O' 



0' 20' 30' 40' 



1901 



DECEMBER 



I9OI 



DECEMBER 



15 



0" 170* 160 ISO* 140' 



4O' SO' 20' 10' O' 10' 20' 30' 40' 



40' SO' to' 10^ 0^ 10' 20' 30' 40' 



For explanation Key map 



