Meteorological Observations. 
4/ 
xxviii 
Abstract of the Jesuits of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of July, 1861. 
Hourly Means, Sec. of the Observations and of the Hygrometrical elements 
dependent thereon.— (Continued.) 
* 
Hour. 
Mean Wet Bulb Ther¬ 
mometer. 
Dry Bulb above Wet. 
1 
Computed Dew Point. 
Dry Bulb above Dew 
Point. 
1 Mean Elastic force 
of Vapour. 
Mean Weight of Va¬ 
pour in a Cubic 
foot of Air. 
Additional Weight of 
Vapour required 
for complete satu¬ 
ration. 
Mean degree of Hu¬ 
midity, complete 
saturation being 
unity. 
0 
0 
i 
j 
0 
0 
Indies. 
Troy grs 
Troy grs. 
Mid- 
night. 
79.2 
2.4 
78.0 
3.6 
0.940 
10.11 
1.23 
0.89 
1 
79.1 
2.2 
78.0 
3.3 
.940 
.13 
.11 
.90 
2 
79.0 
2.1 
77.9 
3.2 
.937 
.10 
.07 
.90 
3 
78.9 
2.0 
77.9 
3.0 
.937 
.10 
.00 
.91 
4 
78.9 
2.0 
77.9 
3.0 
.937 
.10 
.00 
.91 
5 
78.7 
1.9 
77.7 
2.9 
.931 
.04 
0.97 
.91 
6 
78.7 
2.0 
77.7 
3.0 
.931 
.04 
1.00 
.91 
7 
79.1 
2.2 
78.0 
3.3 
.940 
.13 
.11 
.90 
8 
79.7 
3.2 
78.1 
4,8 
.943 
.12 
.67 
.86 
9 
80.3 
3.8 
78.4 
5.7 
.952 
.19 
2,02 
.84 
30 
80.7 
4.3 
78.5 
6.5 
.955 
.12 
.32 
.82 
11 
80.9 
4.7 
78.5 I 
i 
1 
7.1 
.955 
.21 
.55 
.80 
Noon. 
80.9 
4.5 
1 
78.6 
6.8 
.958 
.23 
.45 
.81 
1 
80.6 
5.0 
78.1 
7.5 
.943 
.06 
.70 
.79 
2 
80.8 
4.9 
78.3 
7.4 
.949 
.14 
.66 
.79 
3 
81.1 
4.8 
78.7 
7.2 
.961 
.26 
.61 
.80 
4 
81.0 
4,5 
78.7 
6.8 
.961 
.26 
.46 
.81 
5 
80.5 
4.3 
78.3 
6.5 
.949 
.14 
.32 
.81 
6 
80.0 
3.8 
78.1 
5.7 
.943 
.10 
.00 
.84 
7 
79.6 
3.3 
77.9 
5.0 
.937 
.06 
1.73 
.85 
8 
79.4 
3.1 
77.8 
4,7 
.934 
.03 
.61 
.86 
9 
79.5 
2.8 
78.1 
4,2 
.943 
.14 
.44 
.88 
30 
79.3 
2.7 
77.9 
4.1 
.937 
.08 
.39 
.88 
21 
79.3 
2.4 
78.1 
3.6 
.943 
.14 
.23 
.89 
Ail the Hygrometrical elements are computed by the Greenwich Constants 
