Meteorological Observations. li 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of July 1866. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
SS Range of the Barometer = .. | Range of the Tempera- 
ame for each hour during as ture for each hour 
ea the month. ae during the month. 
Hour.| 5 ae a q 
se | Max. | Min. | Diff. | $$ | Max. | Min. | Diff. 
aE =a 
Inches. | Inches. | Inches. | Inches. ) o ts) fe) 
Mic- 
night.| 29.605 | 29.674 | 29.515 | 0.159 81.2 84.5 76.0 8.5 
1 O93 .663 AQ) 172 81.0 83.8 75.8 8.0 
2 583 .656 466 -190 80.7 83.5 75.4 8.1 
3 Bsy (a) -650 456 194 80.4 83.3 74.8 8.5 
4A, 570 .659 476 183 80.2 83.2 74.6 8.6 
5 O17 664: 480 184: 80.4) 83.4 74,4) 9.0 
6 91 -680 493 187 80.6 83.4 74.5 8.9 
i -605 200 504 196 81.2 84.0 74.6 9.4 
8 618 705 O16 -189 82.5 85.3 75.8 9.5 
9 .626 712 530 182 84.1 87.4 76.6 | 10.8 
10 .629 714 .590 ly) 84.9 88.8 77.0 | 11.8 
11 .620 02 O29 173 85.7 90.2 76.8 | 13.4 
Noon. .608 .686 509 ollie 86.1 91.2 77.2 | 14.0 
il O9L .675 A9L 184 86.5 92.2 76.4 | 15.8 
2 069 657 460 197 86.3 93.0 76.6 | 16.4 
3 548 .632 433 199 85.9 93.2 75.2 | 18.0 
A 536 616 A39 177 85.6 91.0 75.6 | 15.4 
5 534 .608 AA43 165 85.3 89.6 75.5 | 14.1 
6 542 .616 456 .160 84.5 88.0 75.5 | 12.5 
7 .560 637 480 157 83.3 86.0 75.4 | 10.6 
8 581 .660 505 155 82.7 85.2 75.6 9.6 
9 .602 684 527 157 82.3 84.7 75.6 9.1 
10 .616 697 540, 157 81.8 85.2 75.6 9.6 
11 .616 .689 542 147 81.4) 85.0 75.6 9.4, 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived from the observations made at the several 
hours during the month. 
