lxxxiii 
meteorological Observations. 
Abstract of the Hesults of the Hourly meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of march, 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, j 

Range of the Tempera- 
ture for each hour 
during the 
month. 
Max. 
Min. 
Diff. 
Max. 
Min. 
Diff. 
Inches. 
Inches. 
Inches. 
Inches. 
0 
0 
0 
o 
Mid- 
night. 
29.854 
29.987 
29.767 
0.220 
76.2 
80.2 
70.6 
9.6 
1 
.840 
.979 
.758 
.221 
75.7 
79.8 
70.8 
9.0 
2 
.831 
.969 
.750 
.219 
75.2 
79.2 
70.0 
9.2 
3 
.820 
.928 
.737 
.191 
74.5 
78.4 
69.6 
8.8 
4 
.822 
.952 
.734 
.218 
73.7 
77.2 
69.4 
7.8 
5 
.835 
.969 
.748 
.221 
73.7 
77.4 
6S.0 
9.4 
6 
.854 
.983 
.751 
.232 
73.1 
76.6 
67.8 
8.8 
7 
.874 
30.000 
.781 
.219 
73.4 
77.6 
67.8 
9.8 
8 
.912 
.069 
.828 
.241 
76.8 
80.8 
70.2 
10.6 
9 
.928 
.074 
.812 
.232 
79.9 
84.4 
71.6 
12.8 
10 
.932 
.090 
.841 
.249 
82.7 
88.6 
71.4 
17.2 
11 
.921 
.080 
.824 
.256 
85.5 
91.4 
72.2 
19.2 
Noon. 
.80S 
.049 
.796 
.253 
87.8 
94.2 
72.2 
22.0 
i 
.806 
.022 
.764 
.258 
89.6 
95.6 
73.0 
22.6 
2 
.834 
29.984 
.725 
.259 
90.4 
97.0 
73.6 
23.4 
3 
.810 
.951 
.697 
.254 
90.3 
97.4 
75.6 
21.8 
4 
.797 
.945 
.672 
.273 
89.6 
97.8 
75.6 
22.2 
5 
.793 
.940 
.662 
.278 
87.7 
96.6 
75.6 
21.0 
6 
.802 
.964 
•676 
.288 
84.7 
93.8 
74.6 
19.2 
7 
.822 
.975 
.700 
.275 
81.7 
88.6 
73.4 
15.2 
8 
.839 
.964 
.754 
.210 
80.1 
86.0 
71.6 
14.4 
9 
.854 
.974 
.756 
.218 
78.7 
83.2 
71.6 
11.6 
10 
.860 
.972 
.785 
.187 
77.8 
81.8 
72.6 
9.2 
11 
.852 
.968 
.790 
■ .178 
77.5 
81.0 
72.0 
9.0 
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. 
