254 



REPORT 1864. 



§ 4. Adopted Temperatures of the Air and Dew-Point, with Height, 

 IN THE Fourteenth to the Twenty-second Balloon Ascents, 



From all the observations of the temperatm*e and of the dew-point in the preceding 

 Tables, a determination was made of both elements, with the corresponding readings of the 

 barometer and heights. Some of the numbers in the column for heights have been interpo- 

 lated when either of these elements have been observed without a correspionding observation 

 of the barometer. The numbers thus found are within brackets. The results are contained 

 in the following Tables. 



Table II. — Showing tlie adopted Reading of the Barometer, calculated Height 

 above the Sea, Temperatures of the Air, Wet-bulb, and the Dew-point, 

 in the Fourteenth to the Twenty-second Balloon Ascents. — Fourteenth 

 Ascent. — August 31, 1863. 



