Meteorological Observations. xvn 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office , Calcutta , 
in the month of June , 1861. 
Latitude 22° 33' 1" North. Longitude 8S° 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. 
Date. 
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. 
Max. 
Min. 
Diff. 
Max. 
Min. 
Diff. 
Inches. 
Inches. 
Inches. 
Inches. 
o 
o 
0 
o 
29.553 
29.610 
29.474 
0.136 
86.7 
949 
81.4 
13.5 
2 
Sunday. 
8 
.505 
.560 
.435 
.125 
83.9 
92.4 
79.6 
12.8 
4 
.471 
.517 
.386 
.131 
81.4 
86.4 
79.0 
7.4 
5 
.415 
.490 
.379 
.111 
85.7 
93.3 
79.8 
13.5 
6 
.449 
.505 
.401 
.104 
84.8 
91 6 
78.8 
12 8 
7 
.485 
.538 
.417 
.121 
85 5 
92.4 
80.3 
12.1 
8 
.483 
.529 
.424 
.105 
86.5 
91.8 
83.0 
8.8 
9 
Sunday. 
■ - 
10 
.521 
.564 
.473 
.091 
78.5 
80 0 
76.0 
4.0 
11 
.532 
.582 
.472 
.110 
79.5 
83.2 
77.0 
6.2 
12 
.503 
.553 
.445 
.108 
79.0 
80 6 
77.0 
3.6 
13 
.368 
.471 
.290 
.181 
77.7 
79.2 
76.8 
2.4 
14 
.517 
.574 
.444 
.130 
82.0 
86.8 
78.2 
8.6 
15 
.537 
.573 
.489 
.084 
82.5 
86.9 
79.2 
7.7 
16 
Sunday. 
17 
.584 
.659 
.532 
.127 
78.4 
80.8 
76.6 
4.2 
18 
.680 
.749 
.612 
.137 
81.1 
86.0 
76.4 
9.6 
19 
.725 
.779 
.651 
.128 
84.6 
89.3 
81.2 
8.1 
20 
.715 
.763 
.637 
.126 
84.4 
89.4 
80.8 
8.6 
21 
.649 
.698 
.573 
.] 25 
84.7 
89.6 
81-5 
8.1 
22 
.640 
.684 
.585 
.099 
84.2 
87.6 
80.8 
6.8 
23 
Sunday. 
24 
.717 
.755 
.670 
.085 
85.3 
90.6 
81.4 
9.2 
25 
.704 
.772 
.608 
.164 
85.4 
90.4 
81.4 
9.0 
26 
.662 
.710 
.590 
.129 
85.7 
90.4 
81.8 
8.6 
27 
.633 
.679 
.565 
.114 
84.7 
91.9 
80.3 
11.6 
28 
.606 
.618 
.540 
.108 
85.3 
90.7 
81.0 
9.7 
29 
.609 
.656 
.553 
.103 
83.8 
88.0 
81.0 
7.0 
30 
Sunday. 
i 
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. 
