Meleorological Observations, xii 
Abstract of the Results of the lourly Meteorological Observations 
taken at the Surveyor General’s Office, Calculla, 
in the mouth of June 871. 
Latitude 22° 33’ 1” North. Longitude 88° 20’ 34” Fast. 
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. 
ey | 
te 8 _ | Range of the Barometer 2 rs ‘Range of the Tempera- 
= +42 ino ~ ale | = wre ne » dav 
aS during the day. 1 oe | ture during the day. 
| See 5S | + 
Date.| Bo | | ae | | | 
5 | LN | | ] 
geo | Max. | Min. | Diff. | = | Max. | Min. | Diff. 
| | 
Inches. | Inches. | Inches. | Inches. o oO te) o 
i: 29.655 | 29.714 | 29.590 | 0.124 86.3 93.8 or he i ag 
2 625 675 550 125 | 8.7 | 88.0 | 77.0, 11.0 
3 579 647 AQ7 150 | 81.2 87.0 | 77.0 | 10.0 
4 526 570 471 099 81.8 87.0 |. 79.5 7.5 
5 551 590 508 082 82.1 87.5 80.0 | 7.5 
6 549 G05 AS8 UL? 82.0 | 86.0 80.5 5.5 
7 520 594 454 140 82.8 , 88.4 80.0 8.4 
8 508 55d 454 101 83.3 87.5 80.5 7.0 
9 520 572 459 113 81.5 85.9 77.8 8.1 
10 565 612 512 100 83.7 90.0 80.5 9.5 
11 578 623 537 O86 81.4 83.0 80.2 2.8 
12 541 595 A69 126 82.8 88.0 79.8 8.2 
13 015 .562 455 107 81.7 84.6 80.0 4.6 
14 488 539 407 132 83.6 87.0 81.0 6.0 
15 472 549 405 144 83.5 87.0 81.3 5.7 
16 437 486 374 112 84.1 87.3 81.0 6.3 
17 460 535 403 132 83.6 87.4 80.8 6.6 
i8 528 587 482 105 84.4, 89.6 80.5 9.1 
19 543 593 A484 109 85.5 90.5 81.8 8.7 
20 465 543 .370 173 85.1 89.5 83.0 6.5 
21 428 © A479 yal 108 83.7 89.7 80.6 | 9.1 
22 405 454 342 112 82.1 85.4 80.5 4.9 
23 425 499 370 129 82.2 86.4 | 80.0 6.4 
24 490 552 | 441 41 81.0 84.3 80.0 4.3 
25 531 573 | 466 107 81.4 | 86.7 78.5 8.2 
26 536 576 ATA 102 81.2 83.5 79.5 | *4.0 
27 501 539 444 095 81.2 84.5 78.5 6.0 
28 519 588 463 125 82.0 86.0 78.7 7.3 
29 598 .672 531 141 81.6 86.5 76.5 | 10.0 
30 635 .690 580 .110 82.8 89.4 76.4 | 13.0 
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, 
