Meteorological Observations. 
xh 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of June 1866. 
Latitude 22° 33’ 1” North. Longitude 88° 20’ 34” East. 
Height of the Cistern of the Standard Barometer above the sea level, 18-11 feet. 
Daily Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
ght of 
meter 
eee 
Date. = Se 
mn 
Foo 
oS 
Slee 
Inches. 
1 29.610 
2 .629 
3 .625 
4, .D93 
5 71 
6 59 
di A9 4; 
8 ool 
9 070 
10 046 
11 .503 
12 499 
13 532 
14 .538 
15 492 
16 AIA 
17 515 
18 O31 
19 003 
20 A425 
21 3/9 
22, A429 
23 502 
24 433 
25 AAL 
26 431 
27 Ab5 
28 514, 
29 573 
30 .607 
Range of the Barometer 
during the day. 
Max. 
Inches. 
29.662 
.682 
.678 
647 
628 
.ba7 
bal 
6.2 
.622 
621 
O13 
590) 
604 
.596 
5 4A 
533 
oll 
0/5 
Min. 
Inches. 
29.543 
097 
31913) 
489 
499 
AOL 
431 
479 
497 
AZ 
423 
425 
462 
AS) 
ALD 
443 
451 
476 
436 
359 
19 
305 
ALG 
493 
339 
2310 
Ald 
452 
.503 
060 
Diff. 
Inches. 
0.114 
.125 
123 
167 
199 
153 
120 
133 
125 
174s 
.150 
125 
142 
.146 
104 
.090 
120 
.099 
127 
.135 
.097 
154 
lil 
137 
LOD 
10L 
.105 
27 
134 
107 
Mean Dry Bulb 
Thermometer. 
° 
00H 
Per I CO Ne 
ei el Role of sao) 
Range of the Tempera- 
ture during the day. 
Max. 
Min. 
Oo 
83.0 
79.6 
79.2 
81.4 
83.4 
84.0 
84.2 
3.6 
82.0 
76.2 
89.2 
85.4 
83.0 
84.6 
80.8 
79.6 
79.6 
78.4 
89.0 
81.8 
79.0 
79.0 
79.4 
79.6 
81.8 
81.2 
80.6 
82.0 
83.4 
81.8 
Diff. 
= 
NDAD PWD WH DWAID MW AWN OVD 
— 
QADAnWAND EH ERNWOBDENNIDELD 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived, from the hourly observations, made during 
the day. 
