Meteorological Observations. 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of October, 1863. 
XIX 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon, 
month. 
Range of the Barometer for 
each hour during the 
5 
2 @ 8 
asa 
30 6 
[80 oS 
Hour. = a A 
Fi 2 oa Max. 
= 
Inches. | Inches. 
Mid- 
nlehe 29.819 | 29.949 
1 -803 942 
2 795 -928 
3 791 926 
4 .785 934 
5 786 -920 
6 820 .965 
Yi, .839 982 
8 .862 | 30.015 
9 875 .029 
10 .875 027 
11 6858 | 29.998 
Noon. 834 -980 
1 800 .956 
2 781 .935 
3 765 .919 
4 766 904 
5 -768 922 
6 779 928 
7 197 950 
8 815 961 
9 .830 961 
10 .836 963 
11 826 956 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived from the Observations made at the several hours 
‘during the month, 
Min. 
Inches. 
29.638 
617 
609 
596 
.088 
-596 
.608 
633 
.661 
.660 
673 
651 
627 
.606 
579 
003 
049 
063 
.586 
.610 
0699 
645 
651 
-646 
Diff. 
Inches. 
0.311 
825 
.319 
-330 
346 
24 
857 
349 
304 
.369 
04 
347 
03503 
.300 
.360 
-366 
35) 
359 
842 
2340 
326 
.316 
312 
010 
Mean Dry Bulb 
- Thermometer. 
Range of the Tempera- 
ture for each hour 
during the 
month. 
Max. | Min. | Diff. 
(a) oO oO 
82.6 75.0 7.6 
82.4, 74.2 8.2 
82.8 744 8.4 
82.4 74.4, 8.0 
82.2 72.6 9.6 
82.0 (2.2 9.8 
81.6 72,4 9.2 
82.6 72.4! 10.2 
84.6 76.3 8.3 
86.4 77.6 8.8 
87.4 79.4 8.0 
88.4 79.0 9.4 
89.6 79.9 9.7 
90.3 80.4 9.9 
90.4 78.8 | 11.6 
90.1 79.0 | 111 
90.3 79.4 | 10.9 
88.8 79.8 9.0 
87.0 78.8 8.2 
86.3 77.4 8.9 
84.8 76.2 8.6 
84.4 75.0 9.4 
83.8 74.2, 9.6 
83.2 | 75.71 75 
. 
