Meteorological Observations. 
lix 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General*a Office, Calcutta , 
in the month of November, 1861. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
Hour. 
Mean Height of 
the Barometer 
at 32° Faht. 
Range of the Barometer for 
each hour during the 
month. 
Mean Dry Bulb 
Thermometer. 
Range of the Tempera¬ 
ture for each hour 
during the 
month. 
Max. 
Min. 
1 Diff. 
Max. 
Min. 
Diff. 
Inches. 
Inches. 
Inches. 
Inches. 
o 
o 
0 
o 
Mid¬ 
night. 
29.923 
30.047 
29.822 
0.225 
71.3 
79.0 
62.4 
16.6 
1 
.909 
.042 
.812 
.230 
71.2 
78.4 
61.9 
16.5 
2 
.898 
.037 
.803 
.234 
70.9 
78.2 
61.2 
17.0 
3 
.897 
.031 
.791 
.240 
70.1 
77.6 
60.2 
17.4 
4 
.898 
.017 
.795 
.222 
69.4 
77.0 
59.5 
17.5 
5 
.909 
.022 
.803 
.219 
69.2 
76.9 
58.8 
18.1 
6 
.922 
.053 
.818 
.235 
69.0 
77.0 
57.8 
19.2 
7 
1 .940 
.075 
.841 
.234 
69.2 
77.4 
57.8 
19.6 
8 
.966 
.113 
.861 
.252 
71.3 
79.4 
63.0 
16.4 
9 
.981 
.144 
.882 
.262 
73.3 
81.3 
67.0 
14.3 
10 
.981 
.136 
.885 
.251 
74,8 
82.8 
68 2 
14.6 
11 
.960 
.120 
.866 
.254 
76.7 
85.2 
70.4 
14,8 
Noon. 
.936 
.086 
.838 
.248 
77.9 
85.4 
71.8 
13.6 
1 
.909 
.070 
.816 
.254 
78.6 
86.4 
73.0 
13.4 
2 
.888 
.044 
.789 
.255 
79.4 
87.4 
73 6 
13.8 
3 
.878 
.029 
.775 
.254 
79.1 
87.6 
73.6 
14,0 
4 
.873 
.019 
.777 
.242 
78.0 
86.2 
72.2 
14,0 
5 
.884 
.036 
.779 
.257 
76.8 
85.0 
69.8 
15.2 
6 
.893 
.056 
•785 
.271 
74.9 
82.8 
67.0 
15.8 
7 
.910 
.070 
.808 
.262 
73.9 
81.8 
66.0 
15.8 
8 
.925 
.082 
.828 
.254 
73.1 
81.3 
65.0 
16.3 
9 
.934 
.092 
.848 
.244 
72.4 
79 8 
64.0 
15.8 
10 
.939 
.097 
.845 
.252 
71.8 
79.2 
63.4 
15.8 
11 
.939 
.090 
.840 
.250 
71.0 
78.6 
62.4 
16.2 
The Mean lieiglit of the Barometer, as likewise the Mean Dry and Wet Bulb 
Thermometers are derived from the Observations made at the several hours 
during the month. 
