Meteorological Observations 
xliii 
Abstract of the Results of the Hourly Meteor ological Observations 
talcen at the Surveyor GeneraVs Office. Calcutta , 
in the month of September , 1861. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
o | 
Range of the Barometer 
JO u 
'a 2 
Rang 
e of the Temperature 
S s| 
for each hour during 
« § 
for each hour during 
Hour. 
O £ 
the month. 
b 5 
the month. 
® * o 
ffl PQ 
A a 
a oj 00 
oS .3 
u « s 
Max. 
Min. 
Diff. 
- v 
5 -3 
<u 
Max. 
Min. 
Diff. 
s 
s 
Inches. 
Inches. 
Inches. 
Inches. 
0 
o 
o 
o 
Mid¬ 
night. 
29.677 
29.817 
29.460 
0.357 
81.7 
84.8 
79.0 
5.8 
1 
.665 
.808 
.456 
.352 
81.5 
84.2 
79.0 
5.2 
2 
.653 
.797 
.447 
.350 
81.4 
84.0 
79.0 
5.0 
3 
.642 
.788 
.435 
.353 
81.1 
83.8 
79.0 
4.8 
4 
.656 
.783 
.434 
.349 
81.1 
83.8 
79.2 
4.6 
5 
.633 
.799 
.436 
.363 
80.8 
83.8 
78.6 
5.2 
6 
.669 
.824 
.443 
.381 
80.7 
83.6 
78.8 
4.8 
7 
.685 
.854 
.452 
.402 
81.1 
83.8 
78.6 
5.2 
8 
.704 
.879 
.460 
.419 
83.0 
85.6 
80.3 
5.3 
9 
.717 
.872 
.473 
.399 
84.5 
87.6 
80.6 
7.0 
10 
.715 
.867 
.479 
.388' 
85.4 
88.5 
80.0 
8.5 
11 
.706 
.859 
.469 
.390 
86.2 
89.2 
79.3 
9.9 
Noon. 
.686 
.842 
.427 
.415 
87.0 
90.0 
80.6 
9.4 
1 
.661 
.817 
.379 
.438 
87.1 
90.0 
78.8 
11.2 
2 
.633 
.780 
.368 
.412 
86.9 
91.2 
79.8 
11.4 
3 
.617 
.760 
.405 
.355 
86.9 
91.8 
80.4 
11.4 
4 
.610 
.749 
.426 
.323 
86.3 
91.6 
79.2 
12.4 
5 
.610 
.758 
.416 
.342 
85.2 
89.8 
79.2 
10.6 
6 
.623 
.765 
.419 
.346 
84.3 
88.0 
78.6 
9.4 
7 
.643 
.791 
.453 
.338 
83.6 
86.2 
79.2 
7.0 
8 
.668 
.822 
.465 
.357 
83.1 
86.4 
79.5 
6.9 
9 
.685 
.838 
.487 
.351 
82.7 
86.2 
79.3 
6.9 
10 
.691 
.834 
.487 
.347 
82.4 
85.8 
79.3 
6.5 
11 
.696 
.820 
.482 
.338 
81.8 
84.8 
79.2 
5.6 
Lilt/ IlltaiU JLLC/JLglXV JL Wiv -- 
Thermometers are derived from the Observations made at the several hours 
during the month. 
