I9OI 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE TOR NOON GMT 



WITH WINDS AND AIR TEMPERATURES 

 DECEMBER 12 I9OI D E C El M B El R 



13 



MO* ISO' ISO' 170' ISO' 170* 160 ISO' 140" 



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



140" ISO* 160* 130" 180' 170" 160* 150" 



UO 





- 



30' 20' 10' 0* 10' 20' 30' 



I9OI 



DECEMBER 



14 I9OI 



DECEMBER 



15 



SO 1 40* 



140' IgQ" l0' 170' . lQ.Vi 170' 160' ISO" 



10' 20' 30" 



For cxpla.na.tion see Key map 



