1904.] 



Circulation of the Atmosphere. 



23 



FIGURE 3. MEAN PRESSURE DUE TO THE WEIGHT OF THE STRATUM OFTHE ATMOSPHERE BELOW 40COME.TRES . 

 FOR THE MONTH OF JANUARY. COMPUTED FROMFICURESIAND t. 



f>R3URCSARC CrvEN IN MILLIMETRES. 



FIGURE 4. MEAN TEMPERATURE AT THE EARTH S SURFACE. 

 FOR THE MONTH OF JANUARY. IN CENTIGRADE DEGREES. 



