Meteorological Observations 
xcix 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office , Calcutta , 
in the month of April , 1862. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
O 4-- • 
Range of the Barometer 
x> 2 
3 2 
Range of the Temperature 
^ S 3 
for each hour d 
uring 
PQ g 
for 
each hour during 
Hour. 
Sp O (i, 
the month. 
t ° 
the month. 
„ 
q g 
O! 
a <v f0 
S3 JS 
<D *-> 35 
Max. 
Min. 
Diff. 
c 
<u C“< 
Max. 
Min. 
Diff. 
k-H 
r* 
§ 
Inches. 
Inches. 
Inches. 
Inches. 
O 
0 
° 
o 
Mid¬ 
night. 
29.757 
29.871 
29.589 
0.282 
79.9 
83.2 
75.0 
8.2 
1 
.740 
.862 
.584 
.278 
79.3 
82 8 
71.2 
11.6 
2 
.738 
.844 
.576 
.268 
79.1 
83.0 
71 0 
12.0 
3 
.732 
.839 
.587 
.252 
78.5 
82.6 
71.0 
11.6 
4 
.729 
.825 
.608 
.217 
78.4 
82.0 
70.9 
11.1 
5 
.748 
.844 
.625 
.219 
78.0 
81.9 
71.2 
10.7 
6 
.767 
.872 
.636 
.236 
78.0 
81.8 
71.2 
10.6 
7 
.786 
.905 
.643 
.262 
79.0 
82.2 
73.2 
9.0 
8 
.807 
.923 
.656 
.267 
81.7 
84.4 
77.5 
6.9 
9 
.823 
.959 
.690 
.269 
85.6 
89.8 
80.6 
9.2 
10 
.820 
.954 
.667 
.287 
88.0 
91.4 
84.2 
7.2 
11 
.809 
.948 
.666 
.282 
90.1 
95.0 
86.0 
1 
9.0 
Noon. 
.791 
.929 
.655 
.274 
91.5 
96.8 
1 
87.0 
9 8 
1 
.764 
.901 
.621 
.280 
92.6 
98.6 
87.8 
10.8 
2 
.732 
.881 
.582 
.299 
93.2 
99.8 
88.2 
11.6 
3 
.705 
.853 
.568 
.285 
93.1 
100.2 
87.8 
12.4 
4 
.681 
.830 
.543 
.287 
92.4 
100.2 
85 8 
14.4 
5 
.682 
.821 
.541 
.280 
90.2 
98.4 
78.6 
19.8 
6 
.692 
.830 
.536 
.2 94 
87.6 
94.8 
74.0 
20.8 
7 
.713 
.844 
.563 
.281 
85.4 
91.6 
71.0 
20.6 
8 
.740 
.866 
.585 
.281 
83.2 
87.6 
70.7 
16 9 
9 
.756 
.884 
.586 
.298 
82.0 
87.3 
72.6 
14.7 
10 
.759 
.892 
.556 
.336 
81.0 
85.0 
72.5 
12.5 
11- 
.757 
.888 
.611 
.277 
80.5 
84.5 
73.0 
11.5 
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. 
