1904 



INTERNATIONAL ANTARCTIC CO-OPERATION. 



SYNCHRONOUS CHARTS OF SEA-LEVEL PRESSURE FOR NOON GMT. 

 WITH WINDS AND AIR TEMPERATURES. 



FEBRUARY 16 I9O4- FEBRUARY 



140" ISO 160 170 IBO 170 160 ISO 140" 



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



I4O* l0' IO" 170* IVf 170* ieO* WO" 140* 



40" 30' 20" 10" O' 



1904- 



FEBRUARY 



18 1904 



FEBRUARY 



19 



50" I6O" 170" 180" 170" 160" ISO" 140" 



30" 40" 



140" ISO" 160" 170" ISO" 170* 160" ISO" 140" 



so* 20 10" o" to ao 30 



Hxith, London 



For explana-tion see Key lu&p. 



