I9O4- 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON G.M.T. 



WITH WINDS AND AIR TEMPERATURES 

 FEBRUARY 12 1904- FEBRUARY 



40 30' 20' 10 O' 10' 20 30 



1904- 



FEBRUARY 



14- 1904- 



FEBRUARY 



HO' ISO' 160' 170' ISO' 170' 160 ISO 



I4O' ISO' ISO' 170 180' 170" IBO 



LO' 30 icf 10' O' 10' 20' SO 



40' 3O 20 10* O' 10' 20' 30' 4O' 



For explana-tion see Key map 



