Meteorological Observations. 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Caleutta, 
in the month of July, 1868. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon.—( Continued.) 
ae es cee 
EI S & 
faa) a . 
ox ° is 
Hour. = 3 3 a 
g 2 3 
Bc) yh a fan 
Se anes 5 
= fa 3) 
C0) C0) 0) 
78) 26) la are 
night, 
1 79.0 2.3 77.4: 
2 78.9 DD 77 A 
B} 78.7 2.2 772 
4 78.6 2.2 Doak 
5 784 2.2 76.9 
6 78.6 2.0 V7.2 
7 78.9 2.4: 77.2 
8 79.5 3.4 77.1 
9 79.9 Al 77.0 
10 80.2 5.0 76.7 
1 80.7 5.3 77.0 
Noon. 81.2 5.9 lett 
1 81.0 5.6 77.6 
2 81.0 Az 77.6 
3 80.9 5.9 77 A 
4, 80.9 4.9 ine 
5 80.7 A3 TEL: 
6 80.3 4.0 77.5 
7 80.1 3.3 4778 
8 79.8 3.0L 77.6 
9 79.5 Biol eos 
10 79.3 29 77.3 
V1 79.2 2.7 773 
J 
Dry Bulb above Dew 
Point, 
oO 
Wow wwe CCC 
ONOOHEBVWY IYO & 
9.4 
9.0 
9.1 
9.4 
8.3 
7.3 
6.8 
5.6 
5.38 
5.3 
4.9 
4.6 
Mean Elastic force of 
Vapour. 
Inches. 
0.916 
922 
922 
916 
913 
.908 
.916 
916 
913 
910 
-902 
.910 
931 
-928 
928 
922 
925 
931 
925 
934 
928 
919 
919 
919 
pour in a Cubie foot 
Mean Weight of Va- 
of air. 
Troy grs.|Troy grs 
9.87 
complete saturation. 
a a 5 aS 
Additional Weight of 
Vapour required for 
LAT 
Mean degree of Hu- 
midity, complete satu- 
ration being unity. 
| 
All the Hygrometrical elements are computed by the Greenwich Constants. 
From the 1st January, 1868, the Greenwich New Factors have been used for 
computing Dew-points. 
