Meteorological Observations. Ixxxi 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of May, 1863. 
Latitude 22° 3371” North. Longitude 88° 20’ 34” Bast. 
Feet. 
Height of the Cistern of the Standard Barometer above the Sea-level, 18.11 
Daily Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
35 
» oO = 
eo ES 
tse 
Date. ie a 
Sissies 
a 
Inches. 
1 29.647 
2 .643 
3 Sunday. 
4 .670 
5 .689 
6 704 
7 722 
8 631 
9 .624 
10 | Sunday. 
11 654: 
12 631 
13 657 
14 664 
15 .656 
16 677 
17 Sunday. 
18 .630 
19 .601 
20 bol 
21 BTA 
22 614: 
23 .656 
24 |) Sunday. 
25 .666 
26 615 
27 574 
23 53D 
29 A99 
30 ATO 
31 | Sunday. 
Range of the Barometer 
during the day. 
e 
Inches. 
29.712 
706 
714 
743 
757 
798 
708 
683 
717 
720 
724 
715 
736 
122 
.675 
.620 
691 
707 
122 
672 
654 
.600 
.060 
023 
127 | 
145 
Min. 
Inches. 
29.558 
D483 
.601 
622 
.640 
.699 
.009 
074 
575 
049 
.099 
97 
.083 
.606 
551 
.o22 
A455 
13 
O17 
504 
982 
023 
A491 
450 
AL 4 
373 
Diff, 
Inches. 
0.174 
163 
113 
121 
ollatzy 
139 | 
153 
109 
142 
71 
oll AS) 
130 
132 
.130 
mat 
153 
165 
178 
.190 
181 
140 
149 
163 
.150 
146 
.150 
Mean Dry Bulb 
Thermometer. 
Range of the Tempera- 
ture during the day. 
Max. Min. | Diff. 
93.2 820 | 11.2 
93.6 82.2 | 11.4 
92.6 76.7 
The Mean Height of the Barometer, as likewise the Mean Dry and Wet Bulb 
Thermometers ave derived from the twenty-four hourly Observations made during 
the day. 
