ALeteoroloylcal Observations . 
xi 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of May, 1861. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
o <u 
Range of the Barometer for 
Range of the Tempera- 
■P u 
JS g „fl 
each hour durine: the 
« £ 
ture for each hour 
bt) o r « 
month. 
du 
ring the 
Hour. 
<U ■Z ^ 
o a 
month. 
e « M 
CS ^ -P 
q; +j 
Max. 
Min. 
Diff. 
- « 
S- 
03 
tr* 
Max. 
Min. 
Dim 
§ 
§ 
Inches. 
Inches. 
Inches. 
Inches. 
o 
0 
0 
0 
Mid¬ 
night. 
29.613 
29.766 
29.451 
0.315 
81.8 
85.7 
75.4 
10.3 
1 
.609 
.765 
.446 
.319 
81.4 
85.4 
75.2 
10.2 
2 
.600 
.756 
.438 
.318 
81.2 
85.2 
74.8 
10.4 
3 
.596 
.744 
.429 
.315 
81.2 
84.8 
75.2 
9.6 
4 
.601 
.751 
.421 
.330 
81.1 
84.2 
74.8 
9.4 
5 
.610 
.758 
.426 
.332 
80.5 
84.0 
74.2 
9.8 
6 
.625 
.788 
.414 
.374 
80.8 
84.0 
76.0 
8.0 
7 
.644 
.813 
.462 
.351 
81.8 
85.6 
77.0 
8.6 
8 
.662 
.840 
.487 
.353 
85.2 
88.5 
80.2 
8.3 
9 
.667 
.850 
.490 
.360 
87.4 
90.0 
82.6 
7.4 
10 
.667 
.844 
.492 
.352 
89.7 
92.9 
84.6 
8.3 
11 
.656 
.826 
.482 
.344 
91.1 
95.4 
82.2 
13.2 
Noon. 
.637 
.811 
.465 
.346 
92.3 
96.8 
82.8 
14.0 
1 
.613 
.776 
.446 
.330 
93.0 
98.6 
79.4 
19.2 
2 
.584 
.743 
.409 
.334 
93.4 
99.2 
78.2 
21 0 
3 
.560 
.704 
.392 
.312 
93.4 
100.0 
79.2 
20.8 
4 
.538 
.679 
.369 
.310 
91.2 
98.8 
80.8 
18.0 
5 
.541 
.698 
.380 
.318 
89.3 
98.8 
78.8 
20.0 
6 
.553 
.725 
•392 
.333 
87.1 
94.0 
78.0 
16.0 
7 
.580 
.746 
.421 
.325 
85.0 
91.4 
72.4 
19.0 
8 
.606 
.747 
.431 
.316 
84.0 
89.0 
74.0 
15.0 
9 
.620 
.749 
.448 
.301 
83.0 
87.8 
73.8 
14.0 
10 
.629 
.790 
.461 
.329 
82.3 
86.4 
75.0 
11.4 
11 
.620 
.756 
.466 
.290 
81.7 
85.6 
74.8 
10.8 
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. 
