Table 8 — Data regarding pilot-balloon flights 



Local 

 appar- 

 ent 

 time 



Lati- 

 tude 



Long. 



west 



of Gr. 



Pres- 

 sure 



Temperature Humidity 



Dry 



Visibility 



Surface wind 



True 

 dlr. 



Force 

 Beau- 

 fort 



o/o 



38 



