lx Meteorological Observations. 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of February, 1863. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon.—(Continued.) 
ae 
Fa eS 
beh: > 
Oo 2 
Hour. ae S 
ae) a 
ga | a 
25 |p 
= a 
o ) 
Me eS aah AA 
night 
1 62.7 4.0 
2 62.4 3.7 
3 61.7 3.5 
4 61.0 3.5 
5 60.6 3.2 
6 60.6 3.1 
v | 60.4: 3.2 
8 61.8 4.7 
9 63.0 6.6 
10 64.2 8.7 
11 64.8 10.8 
Noon. |} 65.2 12.7 
1 65.8 13.6 
2 66.3 14.1 
3 66.5 14.2 
4 66.1 14.2 
5 66.7 12.7 
6 67.3 8.5 
7 | 66.3 71 
8 65.7 6.3 
9 64.9 5.9 
10 64.4 5.3 
11 63.8 5.1 | 
Computed Dew Point. 
Dry Bulb above Dew 
DAAAAAAW A 
OH OrPWwWwahy © 
He 
oe 
EN ido) 
18.4 
Point, 
Mean Blastic force of 
Vapour, 
Inches. 
0.516 
515 
513 
004: 
A493 
A85 
486 
481 
489 
A85 
A76 
476 
462 
462 
AG 
467 
A61 
486 
046 
034 
.536 
527 
527 
018 
pour in a cubic foot 
Mean Weight of Va- 
of air. 
5.71 
70 
68 
.60 
48 
09 
AL 
36 
Ad 
39 
.20 
18 
.00 
4.99 
ogy) 
5.03 
4.96 
5.24 
94, 
82 
87 
78 
79 
12 
Additional Weight of 
Vapour required for 
complete saturation. 
Troy grs./Troy grs. 
AP rfl 
Mean degree of Hu- 
midity, complete satu- 
ration being unity. 
All the Hygrometrical elements are computed by the Greenwich Constants. 
From the lst January 1863, the Greenwich New Factors have been used for 
computing Dew-point. 
| 
