142 



EXPLORATION OF THE UPPER ATMOSPHERE 



OBSERVATIONS AT NASSAU, JT'I.Y 6, 1903.' 



* On board steam launch Alicia; length 25 feet, width 8 feet, speed 5 knots, t 3 cumulus ; 

 wind from east ; kite in cumulus cloud. + Cumulus cloud passed over kite. § Kite in cloud. 

 II Kite in cloud. H Kite entered cloud. ••Kite left cloud. Average pressure decrease 0.10 

 inch per 101 feet. Average temperature decrease 1° F. per 184 feet. Figures in italic are 

 interpolations. 



It may be of interest to record the relation existing between the length 

 of wire out and the angular and vertical elevation of the kite. This relation- 

 ship is shown in the following table, in which the average values for all obser- 

 vations of each flight are given: 



RELATION BETWEEN LENGTH OF WIRE AND ELEVATION OP KITE. 

 Date. 



June 27 



July 1 



July 2 



July 3 



July 6 



June 27-July 6 102 



Means 



3211 



39 28 



1914 



