140 



EXPLORATION OF THE UPPER ATMOSPHERE 



OBSERVATIONS AT NASSAU, JULY 1, 1903. 



Time. 



Eleva- 

 tion of 

 kite. 



Atmospheric conditions. 



Surface. 



Pres- Temper- Humid- 

 sure, ature. \ ity. 



Wind 

 direc- 

 tion and 

 velocity. 



At kite. 



Pres- 

 sure. 



Temper- 

 ature. 



Hu- 

 mid- 

 ity. 



■Si 



v 



01 B V 

 « OJ J- 



* 5 cumulus, 2 alto-cumulus, t Light scud under kite, t Kite in cumulus at 10.57 a. m. 

 § Light rain ; kite in cumulo-nimbus. || Kite in cumulus. H Kite obscured by cumulus. 

 ** Whole sky clouded in region of kite, ft Kite in cumulo-nimbus. J t Thunder at 4.05 p. m. 

 §§ A few cirrus clouds apparently moving northward. Average pressure decrease 0.10 inch 

 per 107 feet. Average temperature decrease 1° F. per 173 feet. 



