Meteorologicat Observations. XXXV 
Abstract of the Results of the Uourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
tw the mouth of May 1871. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
Ss Range of the Barometer | Range of the Tempera- 
2.2 .: for each howr during mS ture for each jour 
pe the month. 2 during the month. 
os fe [=| 4 
Hour.) © a as | 
rr) 1 | 
S23 | Max. | Min. | Diff. | €3 | Max. | Min. | Diff 
Inches. | Inches. | Inclies. | Inches. ) ) 0 | ° 
Mid- | 
night.| 29.693 | 29.815 | 29.543 | 0.272 79.5 84.2 | 74.0] 102 
683 805 526] .279 79.2 84.0 | 742; 98 
2 672| .786| 513] 273 | 789 | 83.8 | 74.0 | 9.8 
3 665 © .768 .500 .268 738.6 83.5 74.0 9.5 
4, 668 776 504 | .272 78.4, 83.0 | 74.0| 9.0. 
5 678 .782 522 .260 78.2 | 82.7 74.0; 8.7 
6 AYLI 89 540 .269 78.4 | 83.0 74.4! 8.6 
7 Wau) .850 572 | .278 79.6 84.0 | 75.0] 9.0 
8 724 866 583 | 283 82.1 | 87.0 | 77.0! 10.0 
9 732 869 591 | .278 84.5 88.5 | 47.0-| a3 
10 734) 867 582 | .285 86.4 | {0.0 | 77.0 | 13.0 
il fad 849 71 278 87.9 | 92.4 | 79.3 | 13.1 
Noon.| .702| .899| .656| 273 | 884 | 93.5 | 76.5] 17.0 
1 .689 -798 533 -265 8y.3 94.7 77.6 | 17.2 
2 653 768 499 | .269 89.5 95.0 | 79.3 | 15.7 
3 .628 735 473 .262 89.6 95.0 79.2 | 15.8 
4 615 721 459 .262 89.8 95.0 80.6 | 14.4 
5 612 735 428 | 307 88.0 | 948 | 76.0| 18.8 
6 624 727 453 274 86.2 94.0 | 75.4 | 17.6 
7 648 736 AQ) .245 83.5 99.0 76.0 | 14.0 
8 669 | 763] .523} .240 | 81.9 | 87.5 | 75.0} 12.5 
9 .686 S81 .do2 .278 81.3 | 86.7 VAs te | a ys 
10 .699 832 41 | .291 80.6 85.4 | 75.0] 10.4 
il .699 842 544 298 80.0 64.6 74.4 | 10.2 
| 
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. 
