for ascertaining the velocity of sound. 
12 5 
Table II. continued. 
Time. 
ed 
Q 
Morning or 
Evening. 
Time. 
No. of 
Observations. 
Height of 
Number of 
Weather. 
Barom. 
Therm. 
Hygrom. 
Beats. 
Seconds, 
I 822. 
h. 
Inches. 
Dry, 
Sept, 
13 
M 
3 
2 
29 872 
80, 
5 
16 
64»75 
25 , 
9 
Cloudy ; rain at night. 
»5 
E 
6 
2 
29.865 
84, 
2 
17 
64, 0 
25 , 
6 
Clear. 
M 
5 
2 
29,925 
82, 
4 
15 
64.75 
25 , 
9 
Clear. 
16 
E 
6 
2 
29,880 
84, 
5 
15 
64, 0 
25, 
6 
Hazy. 
M 
5 
2 
29,925 
8 3 » 
0 
15 
63.75 
25, 
5 
Clear. 
18 
- 
5 
2 
29,948 
84, 
0’ 
16, 5 
64.25 
25, 
7 
Hazy. 
l 9 
E 
6 
2 
29,920 
8 5 > 
6 
17. 5 
64. 5 
25 , 
8 
Clear. 
21 
M 
5 
2 
29,8 1 8 
82, 
6 
17. 6 
64.75 
25, 
9 
Cloudy ; with lightning 
22 
E 
6 
2 
29,9.15 
8 5 . 
0 
19, 0 
64.25 
25, 
7 
Hazy. 
24 
M 
5 
2 
29,916 
82, 
6 
23. 5 
6 3.75 
25 , 
5 
Clear. 
2 5 
E 
6 
2 
29,878 
87. 
0 
28, 0 
64.75 
25, 
9 
Cloudy. 
27 
M 
3 
2 
30,018 
82, 
7 
18, 0 
63.75 
25, 
5 
Clear. 
28 
E 
6 
2 
29.955 
84, 
4 
20 
65.75 
26, 
3 
Cloudy ; rain and lightning. 
29 
M 
5 
2 
30,034 
80, 
8 
18, 8 
64, 0 
25 , 
6 
Clear. 
30 
E 
6 
2 
3°> OI 5 
84 , 
2 
18, 5 
64.75 
25, 
9 
Clear. 
M 
5 
2 
30,074 
81, 
O 
18, 0 
63.75 
25, 
5 
Very clear. 
Oct. 
1 
M 
5 
2 
30,082 
82, 
6 
17, 8 
64,25 
25, 
7 
Clear. 
4 
M 
3 
2 
29,975 
82, 
5 
16 
64, 5 
25 , 
8 
Clear, and distant lightning. 
5 
E 
6 
2 
29,923 
85 . 
5 
18 
64,25 
25 , 
7 
Cloudy. 
7 
M 
5 
2 
29,990 
81, 
4 
16 
6 5,25 
26, 
1 
Cloudy at sun rise. 
8 
M 
5 
1 
30,015 
83, 
6 
17, 2 
64. 5 
25 , 
8 
Clear. 
9 
M 
5 
2 
29,984 
83 . 
0 
17, 8 
65.25 
26, 
1 
Clear. 
10 
E 
6 
2 
29,978 
85 . 
0 
25, 0 
65, 5 
26, 
2 
Clear. 
M 
3 
2 
30,03° 
8 , 3 . 
O 
19 
64, 5 
25, 
8 
Clear. 
1 1 
E 
6 
2 
30,005 
86, 
0 
27 
66, 5 
26, 
6 
Clear. 
M 
5 
2 
30,065 
82, 
0 
22 
64.75 
25 , 
9 
Very clear. 
12 
M 
9 
2 
30,070 
79 . 
6 
21, 5 
65,25 
26, 
1 
Clear. 
l 3 
E 
6 
1 
30,025 
86, 
0 
25 
66, 0 
26, 
4 
Clear. 
13 
M 
9 
2 
30,080 
81, 
0 
21 
65, 0 
26, 
0 
Clear. 
Nov. 
3 
E 
6 
1 
30,072 
77. 
0 
0, 2 
66, 5 
26, 
6 
Misty. 
Mean 
- 
29,990 
83.95 
20,31 
25,712 
