Meteorological Observations. Ixix 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor Geuneral’s Office, Calcutta, 
in the month of September 1871. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
63 Range of the Barometer  .. | Range of the Tempera- 
Be: for each hour during 8 ture for each hour 
oe a the month. 3 during the month. 
2 —————— me 
Hour. 5 ay a : 
45 | Max. | Min. | Dig. | $3 | Max. | Min. | Dit 
ak a 
Inches. | Inches. | Inches. | Inches. o oO t) oO 
Mid- 
night.| 29.694 | 29.837 | 29.542 | 0.295 80.9 83.6 79.2 4.4 
1 681 .826 534 .292 80.6 83.2 79.0 42 
2 671 811 620 | .291 80.4: 83.0 | 78.8 | 4.2 
3 661 .807 .509 .298 80.2 82.5 78.5 4.0 
4 657 805 ADS 11 79.9 82.0 78.5 3.5 
5 -666 819 .500 319 79.7 81.5 78.2 3.3 
6 .678 .842 512 330 Wor 81.5 78.5 3.0 
7 .695 845 524 321 80.3 82.4 ‘| 78.0 4.4 
8 714 .866 .556 .310 81.8 84.2 78.0 6.2 
9 725 .883 571 312 83.4 86.2 77.8 8.4 
10 725 884 575 309 84.2 87.4 78.1 9.3 
1l 716 -867 572 295 85.3 88.0 80.0 8.0 
Noon. 697 848 563 | .285 86.2 89.9 | 79.5 | 10.4 
1 -669 821 514 .307 86.2 90.5 80.8 9.7 
2 .643 795 497 .298 86.1 91.0 79.6 | 11.4 
3 624 776 470 306 85.9 90.8 79.6 | 11.2 
4 -620 764 -480 284 84.6 89.4 78.0 | 11.4 
5 621 173 472 BOL 84.0 88.5 78.6 9.9 
6 .632 775 482 | .293 83.0 87.2 | 79.0| 82 
vi 654 .805 -490 315 82.1 86.2 79.0 7.2 
8 .679 822 515 .307 81.8 85.5 79.2 6.3 
9 698 | _ .844 524 320 81.6 85.0 79.4 5.6 
10 705 .855 534 21 81.3 84.3 79.4 4.9 
11 702 .839 051 .288 81.1 84.0 79.3 4.7 
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, 
