Meteorological Observations. 
xci 
Abstract of the "Results of the Hourly Meteorological Observations 
taken at the Surveyor General*a Office, Calcutta , 
in the month of March, 1862. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
Hour. 
Mid- 
night. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
Noon. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
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. 
Diff. 
Max. 
Min. 
Diff. 
Inches. 
Inches. 
Inches. 
Inches. 
0 
o 
0 
o 
29.898 
29.998 
29.810 
0.188 
73.6 
78.2 
68.0 
10.2 
.885 
.993 
.770 
.223 
73.1 
77.4 
67.4 
10.0 
.880 
.990 
.748 
.242 
72.8 
77.2 
67.0 
10.2 
.880 
.988 
.742 
.246 
72 1 
76.8 
65.8 
11.0 
.873 
.983 
.731 
.252 
71.3 
76.2 
65.4 
10.8 
.894 
30.001 
.737 
.264 
70.9 
76.4 
65.2 
11.2 
.912 
.023 
.755 
.268 
70.7 
76.4 
64.5 
11.9 
.931 
.046 
.763 
.283 
71.3 
77.6 
64.8 
12.8 
.957 
.088 
.802 
.286 
75.3 
81.0 
69.4 
11.6 
.975 
.104 
.812 
.292 
78.3 
84.6 
70.4 
14.2 
.977 
.115 
.820 
.295 
80.8 
86.0 
73.0 
13.0 
.967 
.103 
.798 
.305 
83.8 
88.4 
78.6 
9.8 
.942 
.077 
.750 
.327 
85.4 
90.6 
80.5 
10.1 
.911 
.041 
.724 
.317 
86.4 
91.6 
77.2 
14.4 
.880 
.010 
.682 
.328 
87.0 
93.2 
73.2 
20.0 
.857 
29.980 
.663 
.317 
87.5 
94.6 
75.8 
18.8 
.845 
.970 
.661 
.309 
87.0 
93.2 
73.5 
19.7 
.840 
.946 
.660 
.286 
85.4 
91.2 
76.6 
14.6 
.847 
.944 
•671 
.273 
82.4 
86.6 
75.6 
11.0 
.863 
.949 
.678 
.271 
79.7 
84.0 
66.2 
17.8 
.883 
.992 
.691 
.301 
77.9 
82.0 
64.5 
17.5 
.898 
30.003 
.714 
.289 
76.4 
80.2 
64.6 
15.6 
.905 
.009 
.726 
.283 
75.5 
79.8 
65.0 
14.8 
.901 
.003 
.728 
.275 
74.5 
79.0 
64.8 
14.2 
The Mean height 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. 
