Meteorological Observations. 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of May, 1860. 
Latitude 22° 33' 1" North. Longitude 88° 20' 34" East. 
Feet. 
Height of the Cistern of the Standard Barometer above the Sea level, 18.11 
Daily Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
Mean Height of 
the Barometer 
at 32° Faht. 
Range of the Barometer 
during the day. 
Mean Dry Bulb 
Thermometer. 
Range of the Tempera- 
ture during the day. 
Date. 
Max. 
Min. 
Diff. 
Max. 
Min. 
Diff. 
Inches. 
Incites. 
Inches. 
Inches. 
o 
o 
i 
29.070 
29.736 
29.586 
0.150 
89.1 
98.6 
82.3 
16.3 
2 
.619 
.702 
.506 
.196 
88.7 
97.6 
82.8 
14.8 
3 
.655 
.694 
.596 
.098 
84.0 
95.6 
72.9 
22.7 
4 
.694 
.807 
.033 
.174 
82.4 
93.0 
72.8 
20.2 
5 
6 
.752 
Sunday. 
.845 
.676 
.169 
83.5 
90.1 
78.4 
11.7 
7 
.753 
.812 
.661 
.151 
84.7 
95.0 
74.8 
20.3 
8 
.719 
.786 
.612 
.174 
84.2 
93.1 
75.0 
18.1 
9 
.626 
.697 
.544 
.153 
85.6 
95.3 
76.4 
18.9 
10 
.624 
.683 
.540 
.143 
87.9 
94.8 
83.6 
112. 
11 
.652 
.705 
.576 
.129 
86.8 
97.0 
77.4 
19.6 
12 
13 
.665 
Sunday. 
.738 
.580 
.158 
86.6 
96.8 
77.2 
19.6 
14 
.600 
.654 
.532 
.122 
91.1 
102.8 
82.4 
20.4 
15 
.625 
.715 
.560 
.155 
93.0 
103.5 
84.2 
19.3 
10 
.628 
.697 
.566 
.131 
92.0 
104.0 
84.0 
20.0 
17 
.636 
.691 
.574 
.117 
90.3 
100.6 
83.8 
16.8 
18 
.650 
.722 
.585 
.137 
90.3 
100.1 
84.2 
15.9 
19 
20 
.672 
Sunday. 
-755 
.621 
.134 
90.3 
100.4 
83.2 
17.2 
21 
.613 
.691 
.523 
.168 
93.2 
105.8 
84.2 
21.6 
22 
.561 
.627 
.477 
.150 
93.2 
105.2 
84.8 
20.4 
23 
.524 
.594 
.447 
.147 
91.6 
102.8 
85.0 
17.8 
24 
.529 
.579 
.452 
.127 
90.3 
100 2 
83.8 
16.4 
25 
.528 
.580 
.447 
.133 
89.6 
98.6 
84.0 
14.6 
26 
27 
.507 
Sunday. 
.557 
.434 
.123 
89.8 
100.2 
83.6 
16.6 
28 
.535 
.602 
.477 
.125 
. 88.2 
100.8 
80.0 
20 8 
29 
.517 
.583 
.443 
.140 
88.6 
97.6 
80.8 
16.8 
30 
.490 
.563 
.428 
.135 
90.1 
97.4 
84.8 
12.6 
31 
.507 
.590 
.417 
.173 
89.8 
99.0 
81.2 
17.8 
The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb 
Thermometers are derived from the twenty-four hourly observations made during 
the day. 
