Geography of the Air. 159 



that a further discussion of meteorological phenomena on a broad 

 basis, by means of International Weather Charts, both in daily 

 and monthly form, must eventually result in important and fun- 

 damental discoveries. It is gratifying to American pride to 

 know that in this international task of outlining the geogi'aphy 

 of the air, the United States has liberally provided the labor and 

 means for presenting these ten years' meteorological data in such 

 tabular and geographical forms as to render them available for 

 study by all. 



Acknowledgment is due to Professor Thomas Russell, for val- 

 uable translations, especially from the German ; which transla- 

 tions have been of material value in preparing this report. 



December, 1888. 



