Meteorological Observations. XXX1 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor’ General’s Office, Calcutta, 
in the month of May, 1865. 
Latitude 22° 33’ 1” North. Longitude 88° 20’ 34” Hust. 
Height of the Cistern of the Standard Barometer above the Sea-level, 18 ft. 11 in. 
Daily Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 












o 5 2 
2oe Range of the Barometer = |Range of the Tempera- 
fe) 5S during the day, co g tans during the day, 
- cl ° ~ 
Date. eS 0 % g ra 
$S%-| Mox. | Min. | Dif. | 2&4 | Max. | Min, | Dif. 
a a 
Inches. | Inches. | Inches. | Inches. 0 ° OF f| 6 
1 | 29.542 | 29.609 | 29.452 | 0.157} 84.9 92.0 | 77.6 | 14.4 
2 698 673 551 122] 85.6 92.6 | 79.4 | 13.2 
3 507 625 .438 187 | 85.9 926 | 78.4 | 14.2 
4 506 .589 447 .142-| 87.4 92.6 | 83.2 | 9.4 
5 545 657 476 181 | 87.0 948 | 80.3 | 14.5 
6 +682 .806 590 .216 | 81.9 93.4 | 73.0 | 20,4 
7 | Sunday 
8 .680 745 593 152 | 79.8 85.6 | 77.0 | 8.6 
9 619 .678 534 144{ 81.9 | 898 | 74.9 | 149 
10 643 739 .589 150 |- 79.8 | 863 | 73.0 | 13.3 
11 610 .669 521 148 | 84.0 90.5 | 78.0 | 125 
12 729 824 639 185 | 79.8 86.6 | 73.0 | 136 
13 .799 854 725 129 | 83.3 89.0 | 77.0 | 12.0 
14 | Sunday 
15 707 .781 598; .183| 86.1 92.5 | 80.2 | 123 
16 712 WWD .639 136 | 84.1 92.0 | 75.6 | 16.4 
17 754 .826 684 142 | 84.0 92.1 | 76.8 | 15.3 
18 764 823 WOU |.” ¥.122"h 86:4 92.4 | 79.6 | 12.8 
19 .786 851 716 | 1185 | . 86.6 93.201 "82.0 | 41.2 
20 767 844 674 170; 85.2 92.6 | 78.4) 14.2 
21 | Sunday., 
22 87 .831 750 .081 | 79.8 87.8 | 76.6, 11.2 
23 vig 844: .709 135 | 82.4 90,0) )77.1 G29 
24 705 785 605 180 | 82.1 | 88.2 | 76.8 | 11.4 
25 .639 692 543 149| 788 |. 846 | 768) 7.8 
26 622 681 582 099 | 81.1 86.3 | 78.0 | 83 
27 617 .652 565 .087 | 82.3 88.5 | 79.0} 95 
28 | Sunday. 
29 487 549 427 122 | 84.6 92.2 | 81.3 | 10.9 
30 .459 501 415 086 | 85.1 91.5 | 80.6 | 10.9 
31 486 520 442 078 | 83.4 87.8 | 81.4] 6.4 







The Mean Height of the Barometer, as likewise the Dry and Wet Bulb Ther- 
mometer Means are derived from the hourly Observations made during the day. 
