Meteorological Observations. XXXili 
Abstract of the Results of the Tlourly Meteorological Observations 
taken at the Surveyor Gereral’s Office, Calcutta, 
tn the month of May 1871. 
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. 
Ce 
id 8 _ | Range of the Barometer a # (Range of the Tempera- 
aos during the day. Ae ture during the day. 
28S Pd 
Oo ¢: 
Date. | 2 3 a 2 
e2° | Max. | Min. | Dif | 23 | Max. | Min. | Diff. 
= PS = a 
Inches. | Inches. | Inches. | Inches. te) oO ce) oy) 
1 29.757 | 29.842 | 29.694 0.148 84.8 89.0 79.0 | 10.0 
2 787 .869 721 148 83.3 92.0 76.8 , 15.2 
3 766 843 709 134 84.9 92.2 78.0 | 14.2 
4 -750 824 .639 185 84.0 93.0 74.4 | 18.6 
5 429 775 -656 119 78.8 90.0 74.0 | 16.0 
6 705 -766 599 167 81.0 91.4 74.8 | 16.6 
7 683 743 589 154 83.8 94.3 76.8 | 17.5 
8 -697 735 627 -108 80.6 88.9 75.0 | 13.9 
9 704 753 -649 104 79.9 86.9 74.5 | 12.4 
10 714 472 644, 128 81.8 91.8 76.5 | 15.3 
11 723 175 637 138 80.8 91.2 75.2 | 16.0 
12 718 776 640 -136 82.2 89.2 75.5 | 13.7 
13 713 -766 616 150 82.5 91.0 75.6 | 15.4 
14 687 751 -604 147 82.1 89.0 75.5 | 135 
15 -661 712 587 -125 §3.8 90.2 78.0 | 12.2 
16 651 697 574 123 86.9 94.0 80.6 | 13.4 
17 662 719 595 124 88.0 95.0 82.5 | 12.5 
18 641 702 555 147 86.4 94.7 82.7 | 12.0 
19 590 636 523 113 86.7 93.5 80.6 | 12.9 
20 577 629 506 123 80.8 85.3 77.0 8.3 
21 551 614 459 155 83.7 92.8 78.0 | 14.8 
22 538 595 A775 120 82.4 89.8 79.1 | 10.7 
23 537 601 428 173 84.6 93.2 78.5 | 14.7 
24, 571 647 533 114 82.3 89.4 76.5 | 12.9 
25 645 779 586 193 84.0 91.0 75.3 | 15.7 
26 695 754 653 101 82.0 90.7 76.0 | 14.7 
27 747 812 .687 125 84.0 91.6 77.0 | 14.6 
28 735 814, 641 173 82.8 91.5 76.0 | 15.5 
29 -730 -788 .659 129 83.0 90.5 76.5 | 14.0 
30 690 -762 612 150 84.6 92.3 77.7 | 14.6 
31 669 -730 604 126 86.2 93.0 80.5 | 12.5 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived, from the hourly observations, made at the 
several hours during the day. 
