11 
Meteorological Observations. 
Abstract of the Sesults of the Hourly Meteorological Observations 
taken at the Surveyor General's Office , Calcutta, 
in the month of May, 18G0. 
Daily Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. — (Continued.) 
Date. 
Mean Wet Bulb Thermo- 
meter. 
Dry Bulb above Wet. 
Computed Dew Point. 
Dry Bulb above Dew j 
Point. 
1 
Mean Elastic force of 
Vapour. 
Mean Weight of Vapour 
in a cubic foot of Air. 
Additional Weight of Va- 
pour required for com- 
plete saturation. 
Mean degree of Humidity, 
complete saturation be- 
ing unity. 
o 
o 
o 
o 
Indies. 
T. er. 
T. gr. 
1 
81.8 
'7.3 
78.1 
11.0 
0.943 
10.00 
4.12 
0.71 
2 
81.3 
7.4 
77.6 
li.i 
.928 
9.85 
.11 
.71 
3 
76.5 
7.5 
72.7 
11.3 
.792 
8.49 
3.68 
.70 
4 
76.8 
5.6 
74.0 
8.4 
.827 
.90 
2.71 
.77 
5 
G 
78.2 
Sunday. 
5.3 
75.5 
8.0 
.868 
9.31 
.69 
.78 
7 
79.2 
5.5 
76.4 
8.3 
.893 
.56 
.86 
.77 
8 
79.2 
5.0 
76.7 
7.5 
.902 
.64 
.60 
.79 
9 
79.6 
6.0 
76.6 
9.0 
.899 
.59 
3.17 
.75 
10 
81.7 
6.2 
78.6 
9.3 
.958 
10.19 
.4.5 
.75 
11 
80.5 
6.3 
77.3 
9.5 
.919 
9.78 
.43 
.74 
12 
13 
80.7 
Sunday. 
5.9 
77.7 
8.9 
.931 
.92 
.22 
.76 
14 
83.4 
7.7 
79.5 
11.6 
.986 
10.40 
4.57 
.70 
15 
81.1 
11.9 
75.1 
17.9 
.857 
9.00 
6.81 
.57 
16 
83.8 
8.2 
79.7 
12.3 
.992 
10.46 
4.90 
.08 
17 
83.2 
7.1 
79.6 
10.7 
.9S9 
.4.-5 
.18 
.71 
18 
83.5 
6.8 
80.1 
10.2 
1.005 
.62 
.01 
.73 
19 
20 
83.5 
Sunday 
6.8 
80.1 
10.2 
.005 
.62 
.01 
.73 
21 
82.9 
10.3 . 
77.7 
15.5 
0.931 
9.78 
6.12 
.62 
22 
83.2 
10.0 
78.2 
15.0 
.946 
.94 
5.96 
.63 
23 
83.5 
8.1 
79.4 
12.2 
.983 
10.37 
4.82 
.68 
24 
83.0 
7.3 
79.3 
11.0 
.979 
.36 
.27 
.71 
25 
82.1 
7.5 
78.3 
11.3 
.949 
.05 
.28 
.70 
26 
27 
81.3 
Sunday . 
8.5 
77.0 
12.8 
.910 
9.63 
.79 
.67 
28 
80.1 
8.1 
7G.0 
12.2 
•8S2 
37 
.39 
.68 
29 
81.6 
7.0 
78.1 
10.5 
.943 
10.00 
3.92 
.72 
30 
83.3 
6.8 
79.9 
10.2 
.998 
.56 
.98 
.73 
31 
83.0 
6.8 
79.6 
10.2 
.989 
.48 
.94 
.73 
All the Hygroruetrieiil elements are computed by tlie Greenwich Constants. 
