ON EIGHT BALLOON ASCENTS IN 1862. 44.9 
Taste III. (continued). 
Temperature of the Air. 
Ascending. Descending. 
Height, in feet, j j 
itd the mean | Caleu- Calcu- 
evel of the sea. |Between|_. Ob- lated _||Between| ,,- Ob- lated 
what ae served ee a effect of || what pees served Adopted effect of 
times *| temp. P+ | disturb-|| times, | St7¢es- temp. | *°™P> | disturb- 
| ance. | ance. 
September 8. : 5 # a “ 3 4 é 
5000 # g | Above 50°O} S50°0 OO || oO = Above oa 511 
4.000 Fa — 52°7 52°7 oo || “3 cloud. ote 50°3 
3000 el spond S6"4  56°4. | ooll es In cloud 
2000 = 61°0| 61°0 oro |] fur 
a a 
1000 ot |Below} 65:1} 6571 oo] 9, 
° Fo |cloud.| 69:0} 690 oro|| * 
5000 5 g ic ale 55 °Sche~ wie SF se Ad 51°4 
4000 o ee oe . 52°5 | oe 33 oe oe 512 
3000 = &, . os oe 34 oe ve 53°9 
2000 On an an . a aS ee a 56°5 
1000 £4, p ats as oe PB) oe “t 60°2 
° ge oe ele ts - 5 ve oe 64:8 
September 8.—The sky was cloudy, and the decrease of temperature was 
nearly uniform, and there was no marked interruption in the regular decrease 
of temperature on descending. 
The next Table has been formed by taking the difference between conse- 
cutive numbers in the preceding Tables, in each of the several ascents. The 
disturbances on July 17 were so great and the results so different from 
those on the other days of experiments, that no use has been made of the 
results, other than inserting them in the Table. 
1862, 25 
