Meteorological Observations. liii 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of July 1871. ‘ 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
OB Range of the Barometer = = | Range of the Tempera- 
3 Ay is for each hour during m2 ture for each hour 
eg the month. ie during the month. 
vo r 
Hour. 5 25 Ag | Pe 
aan ; : Fs . ; 
a oo) Max. Min. Diff. aS Max. | Min. | Diff. 
w Pir = | 
aa = 
Inches. | Inches. | Inches. | Inches. 
° 
° 
-o 
° 
Mid- 
night.| 29.574 | 29.710 | 29.457 | 0.253 81.1 83.0 77.0 6.0 
1 564 701 A447 254 80.7 82.6 76.3 63 
2 554 693 420 273 80°4 82.2 76.0 6.2 
3 542 682 404 .278 80.1 82.3 75.7 6.6 
4 536 662 391 271 79.8 82.3 75.6 6.7 
5 543 671 399 272 79.7 82.5 75.6 6.9 
6 554 674 399 275 79.7 82.5 75.5 7.0 
7 568 691 408 .283 80.5 83.0 77.0 6.0 
8 578 714 429 285 81.6 84.5 77.3 7.2 
9 585 721 438 .283 82.9 85.8 78.0 7.8 
10 -587 715 430 285 83.8 87.5 78.2 9.3 
11 580 724 419 305 84.7 88.5 79.0 9.5 
Noon. 567 709 401 .308 85.5 89.5 79.5 | 10.0 
1 550 707 391 316 85.9 90.5 79.0 | 11.5 
2 531 .689 384 305 85.7 90.0 78.8 | 11.2 
3 513 654 -366 .288 85.1 90.0 79.0 | 11.0 
4 -500 .640 359 281 85.2 90.0 79.6 | 10.4 
5 495 624 371 253 84.7 88.7 79.5 9.2 
6 508 -637 384 253 83.6 87.5 77.5 | 10.0 
7 528 -650 411 .239 82.5 86.3 77.5 8.8 
8 548 681 431 -250 82.1 85.2 78.0 7.2 
9 567 700 458 242 81.8 84.3 78.2 6.1 
10 581 718 472 246 81.5 83.7 77.5 6.2 
11 582 vay: A464 .253 81.4 83.6 77.5 6.1 
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. 
