OBSERVATIONS IN FOUR BALLOON ASCENTS. 
325 
Table I. (Continued.) 
enwich 
a Time. 
Barometer. 
Height 
above 
sea- 
level. 
Dry and Wet Thermometers, aspirated . 
Temperature cor- 
rected for change. 
Dry and Wet Thermometers, /ree. 
Therm. 
Reading 
coreected. 
Dry. 
Wet. 
Diff. 
Tension of 
vapour. 
Relative 
humidity. 
Dew- 
point. 
Dry. 
Wet. 
Diff. 
Tension of 
vapour. 
1 Relative 
humidity. 
Dew- 
point. 
3 m 
s 
in. 
feet. 
0 
0 
0 
in. 
0 
0 
0 
0 
0 
in. 
t 47 
0 
8-9 
8-1 
47 
30 
14-46 
19,300 
49 
0 
14-86 
18,630 
12-3 
11-4 
50 
0 
15-17 
18,090 
13-3 
12-4 
50 
30 
15-27 
17,920 
13-3 
12-4 
51 
0 
15-48 
17,580 
14-6 
13-7 
51 
30 
24-0 
15-58 
17,420 
15-4 
14-5 
51 
30 
15-63t 
17,330 
52 
0 
15-88 
16,920 
15-9 
15-0 
52 
15 
24-0 
15-83t 
17,010 
52 
30 
16-08 
16,590 
53 
0 
16-39 
16,090 
17*2 
16-2 
15-2 
1-0 
•103 
92 
13-9 
54 
0 
16-59 
15,790 
19-0 
18-0 
16-2 
1-8 
•102 
85 
13-6 
30 
16-89 
15.320 
19-5 
18-5 
55 
0 
17-10 
15,000 
20-5 
19-5 
18-8 
0-7 
•120 
94 
18-0 
56 
45 
17-77t 
14,020 
57 
0 
25-0 
24-0 
57 
40 
18-llt 
13,530 
26-0 
25-0 
58 
0 
24-0 
18-36t 
13,170 
27-3 
26-2 
58 
30 
18-71t 
12,680 
28-4 
27-3 
) 0 
30 
19'57t 
11,500 
32-0 
30-9 
29-8 
1-1 
•177 
92 
28-7 
1 
30 
20-28t 
1 0,570 
36-5 
35-4 
29-8 
5*6 
•145 
64 
23-2 
3 
0 
20-88t 
9^790 
38-0 
36-9 
29-8 
7-1 
•133 
56 
20-8 
5 
0 
22-31 
8^020 
43-0 
41-8 
30-8 
11-0 
•106 
38 
14-6 
5 
30 
22-51 
7,780 
45-4 
144.2 
31-5 
12-7 
•096 
31 
12-0 
6 
0 
22-91 
7,310 
48-0 
'46-8 
1 
: 46 
0 
65-9 
61-5 
4-4 
-500 
79 
58-7 
65-9 
66-0 
6l-7 
4-3 
•505 
79 
59-0 
47 
0 
29-34 
710 
64-5 
60-9 
3-6 
•498 
82 
58-5 
64-5 
65-3 
61-3 
4-0 
•501 
80 
58-7 
47 
30 
71-0 
29-18t 
860 
' 
48 
0 
29-19 
850 
63-8 
59-9 
3-9 
•478 
80 
57-3 
63-9 
64-8 
60-7 
4-1 
•490 
80 
58-1 
49 
0 
28-89 i 
1,140 
63-2 
59‘5 
3-7 
•473 
81 
57*0 
63-3 
63-8 
59-7 
4-1 
•472 
79 
56-9 
50 
0 
28-40 
1,620 
61-1 
57-8 
3-3 
•450 
83 
55-5 
61-2 
'62-5 
58-1 
4-4 
•443 
78 
55-1 
51 
0 
28-10 ; 
1,920 
1 
51 
40 
52 
0 
27-85 
2,160 ; 
60-9 
57-3 
3-6 
•440 
82 
54-9 
52 
30 
59-9 
56-2 
3-7 
•421 
80 
53-5 
60-1 
53 
0 
27-70 
2,310 
58-9 
55-8 
3-1 
•421 
83 
53-5 
59-1 
60-9 
56-9 
4-0 
•429 
79 
54-1 
53 
30 
58-9 
55-5 
3-4 
•414 
82 
53-0 
59-2 
54 
0 
27-40 , 
2,620 
58-3 
55-3 
3-0 
•415 
84 
53-1 ! 
58-6 ^ 
60-3 
55-7 
4-6 
•405 
77 
52-4 
54 
30 
58-0 
54-8 
3-2 
•406 
83 
52-5 
58-3 
59-6 
55-6 
4-0 
•410 
80 
52-8 
55 
0 
27-11 
2,910 
55 
30 
56-3 
54-6 
1‘7 
•419 
91 
53-4 
56-7 
56 
0 
26-90 
.3,120 
55-8 
53-2 
2-6 
•389 
86 
51-2 
56-2 
57-7 
53-7 
4-0 
•382 
79 
50-7 
57 
0 
26-41 
3,630 
54-8 
52-0 
2-8 
•371 
84 
49-8 
55-2 
56-8 
52-9, 
3-9 
•372 
79 
49-9 
57 
30 
54-4 
51-6 
2-8 
•366 
84 
49-4 
54-8 
58 
0 
26-16 
3,900 
58 
0 
65-3 
26-1 7t 
3,890 
58 
30 
52-5 
50-0 
2-5 
•348 
86 
48-0 
52-9 
54-9 
50-7 
4-2 
•341 
77 
47-4 
59 
0 
25-77 
4,300 
51-5 
48-7 
2-8 
•329 
84 
46-3 
52-0 
54-1 
49-6 
4-5 
•324 
76 
45-9 
59 
30 
51-0 
47-9 
3-1 
•317 
82 
45-2 
51-5 
0 
0 
25-32 
4,780 
49-8 
46-9 
2-9 
•307 
83 
44-3 
50-3 
52-4 
48-6 
3-8 
•319 
79 
45-4 
1 
0 
24-92 
5,230 
49-8 
46-6 
3-2 
•302 
82 
43-8 
50-3 
50-5 
46-8 
3-7 
•299 
79 
43-6 
2 
0 
24-47 
5,710 
46-7 
45-4 
1-3 
•307 
92 
44-3 
47-3 
2 
30 
45*7 
44-3 
1-4 
•294 
91 
43-1 
46-3 
3 
0 
24-12 
6,100 
44-7 
43-0 
1-7 
•278 
89 
41-5 
45-3 
47-1 
44-2 
2-9 
•279 
83 
41-6 
3 
30 
43-8 
42-4 
1-4 
•274 
91 
41-0 
44-4 
46-1 
43-3 
2-8 
•271 
83 
40-7 
4 
0 
23-68 
6,590 
42-7 
41-1 
1-6 
•260 
89 
39-5 
43-3 
44-9 
42-7 
2-2 
•270 
86 
40-6 
4 
40 
41-8 
40-0 
1-8 
•248 
88 
38-2 
42-5 
Regnault’s 
Hygrometer. 
Dew- 
point. 
S d 
<v > 
50-0 *373 
44-3 
40- 5 
41- ? 
39-0 
35*5 
'307 
'269 
'274 
255 
226 
