572 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 105 



SEA-LEVEL PRESSURE AT 10° INTERSECTIONS 



Lat. 20° N. Long. 0° 



950 mb. + 



Lat. 20° N. Long. 10° E. 

 950 mb. + 



Lat. 20° N. Long. 20° E. 

 950 mb. + 



