301 



INTERNATIONAL ANTARCTIC COOPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 DECEMBER 4- I9OI DECEMBER 



30' 20' ID 0* 10' 20" 3O' 



140 ISO 160 170 ISO 170 160 



40' 



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



1901 



DECEM BE.R 



6 I9OI 



DECEMBER 



140* iso' 160' 170' :eo' no iso iso 



3O" 20" 10' 0* 10' 20' 30' 



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



140" 



30* 20" 10" 0" 10" 20" 3O" 



For expla.na.tion see Key m*,p 



