Meteorological Observations. 
xli 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of September , 1861. 
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. 
Date. 
leight of 
iarometer 
0 Faht. 
Range of the Barometer 
during the day. 
5 u 
.3 <D 
4—3 
PQ « 
« a 
Range of the Tempera¬ 
ture during the day. 
Mean I 
the E 
at 32 
Max. 
Min. 
DifF. 
a j 
§ H 
S 
Max. 
Min. 
Diff. 
Inches. 
Inches. 
Inches. 
Inches. 
0 
o 
o 
0 
1 
2 
Sunday. 
29.505 
29.554 
29.453 
0.101 
84.6 
90.4 
79.4 
11.0 
3 
.506 
.565 
.431 
.134 
85.9 
90.2 
82 3 
7.9 
4 
.446 
.487 
.368 
.119 
82.6 
87.0 
78.6 
8.4 
5 
.484 
.558 
.435 
.123 
80.2 
82.8 
78.6 
4.2 
6 
.568 
.620 
.513 
.107 
83.4 
89.0 
79.0 
10.0 
7 
.609 
.652 
.556 
.096 
83.5 
88.2 
80.2 
8.0 
8 
9 
Sunday. 
.638 
.688 
.581 
.107 
84.7 
90.0 
81.2 
8.8 
10 
.659 
.722 
.606 
.116 
84.7 
89.8 
81.2 
8.6 
11 
.704 
.770 
.653 
.117 
85.1 
89.8 
81.7 
8.1 
12 
.726 
.790 
.667 
.123 
83.7 
87.2 
80.2 
7.0 
13 
.712 
.772 
.651 
.121 
84.4 
88.8 
79.6 
9.2 
14 
..708 
.770 
.636 
.134 
84.0 
89.2 
79.7 
9.5 
15 
16 
Sunday. 
.649 
.695 
.575 
.120 
83.7 
89.0 
81.2 
7.8 
17 
.680 
.730 
.620 
.110 
84.5 
91.8 
79.4 
12.4 
18 
.724 
.782 
.674 
.108 
83.2 
85.4 
81.6 
3.8 
19 
.702 
.757 
.637 
.120 
82.8 
89.4 
80.6 
8.8 
20 
.642 
.698 
.582 
.116 
80.9 
83.2 
79.6 
3.6 
21 
.645 
.715 
.593 
.122 
81.9 
85.6 
78.6 
7.0 
22 
23 
Sunday. 
.778 
.836 
.724 
.112 
83.6 
88.4 
79.2 
9.2 
24 
.757 
.826 
.679 
.147 
85.3 
91.2 
80.6 
10.6 
25 
.746 
.790 
.686 
.104 
84.7 
90.0 
81.2 
8.8 
26 
.795 
.854 
.749 
.105 
84.3 
90.1 
80.2 
9.9 
27 
.811 
.879 
.737 
.142 
85.5 
91.6 
80.6 
11.0 
28 
.753 
.810 
.702 
.108 
82.3 
89.2 
78.8 
10.4 
29 
30 
Sunday. 
.673 
.730 
.597 
.133 
82.1 
86.6 
79.0 
7.6 
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. 
