476 
REPORT—1863. 
Taste III.—Showing the Temperature of the Air, as read off the curve 
drawn through the observed temperatures, and as read off the curve of 
most probable normal temperature, called adopted temperature, and the 
calculated amount of disturbance from the assumed law of decrease of 
temperature. 
Ninti Ascent. 
Height, in feet, 
above the mean 
level of the sea. 
March 31. 
23000 
22000 
21000 
20000 
19000 
18000 
17000 
16000 
15000 
14000 
13000 
12000 
11000 
10000 
g000 
8000 
7000 
6000 
5000 
4000 
3000 
2000 
1000 
° 
what 
From 45 10o™ to 5" 27™ p.m. 
Temperature of the Air. 
Between (tive 
stances. 
Clear blue sky. 
Ascending. 
Be Adopted 
TV 
iia temp. 
° ° 
I‘o foe) 
I's I'o 
20 22 
3°0 40 
65 | 59 
10°7 8-0 
98 | 99 
12'0 | 12°0 
14°3 | I4°0 
16'0 | 16°0 
18°8 | 18-0 
180 | 203 
22,0 4] 22°90 
26-3.) 256 
281 | 27°9 
30°8 | 30°1 
33°O | 323 
35°8 | 34°5 
36:0 | 36°7 
38°2 | 38-9 
39°6 | 41°70 
44°0 | 44°0 
47°2 | 47°0 
5 51°9 
Misty. 
l++11++ 
Pi i+++4++10+ + 
+ o72 
sud ,,Of 49 0} wlt yS MOAT 
Descending. 
Adopted 
stances. pees temp. 
° ° 
1‘0 oo 
bize) o3 
1"4 I'l 
x7 18 
19 22 
Ir 3°0 
2°6 4°0 
Le) 5°5 
69 72 
ewe) oe: 94 
g 1270 | 114 
B | 134 | 13°5 
BD 157 | 155 
P| 317°8 | 17%4 
19°3 | 29°0 
21'o | 21°70 
22°38 | 22°8 
24°7 | 24°5 
25°9 | 26°0 
28°0 | 27°7 
29°2 | 29°5 
30°0 | 31°5 
33°5 | 348 
42°0 | 42°0 
Caleu- 
lated 
effect of 
disturb- 
ance. 
° 
I'o 
o'7 
03 
ol 
03 
o's 
14 
oo 
0°73 
I'o 
06 
ol 
o'2 
o'4 
03 
oo 
foe) 
o2 
ol 
03 
03 
15 
l+++ 
+++1+4+1 1 
I+1+ 
13 
loko) 
March 31.—The sky was clear, and the amounts of deviation of tempera- 
ture on either side of the adopted curve-line were generally small, both during 
the ascent and descent of the balloon. 
On ascending, there was a curious warm stratum of air between 17,000 and 
19,000 feet high, and a similar one was met with on descending, between 
15,000 and 15,500 feet high, 
