Meteorological Observations, Ixvil 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of September 1871. 
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. 
reas | 
Baer = | Range of the Barometer = # =|Range of the Tempera- 
|= 2s during the day. . = | ture during the day. 
j= os | 5 
enemecmreren ecommerce ME eS) SR) | ead be A de 
Date. | ZS 0 | | ze Fs 
| geo! Max. | Min. | Dif. | 2S | Max. | Min. | Dit 
) Ye a | eo | 
4 
Inches. Inches. Inches. | Inches. | 0 | fe) a. ce 
1 | 29.755 ; 29.837 | 29.668 | 0.169} 83.3 | 86.5 | 80.8 | 5.7 
2 707 | 765 ) 627 138 | 83.6 | 885 | £06, 7.9 
3 1684 |  . 1782 649 | 083 | 83.9 | 87.2 | 815 |) 5.7 
4 WOO)" +555 627 128° | -83.3 -| «910 149.0 1919.0 
6 ee £en78 |) 62670 108 | 82) | 877 58H le OF 
6 14 | 765 | 641 wee.) B17) BE Tint. [a6 
7 Rosa: | vio | 57 + 162 | 82.0 | 87.4 | 78.5 | 8.9 
8 mie || iW6rs |; 613 165}, 84:3) | 69018 «1078:8 1.72.0 
9 658] G11} ~ 480} 131 | 83.6 | 88.5 | 81.4]|- 7.1 
10 563 | 616°} 496 120 | 82.4 87:1 | 79.0 |. 8.1 
11 | 546/ 609} 475 | 134] 824 | 884 | 80.0] @4 
12 | 528 | 583 | 470] ..113] 79.8 81.5 | 78.6} 29 
13 41 | 696 | 494 B12}, +49:9 84.0 | 77.8 | 62 
4 G05 | 673 | 507 116 80.8 83.7. | 78.5 | 6.2 
15 660 | 709 | 616 .093 | 82.2 | 86.2 | 78.2; 8.0 
16 i641 | 2695 | ©.574 122 |) S831 | | 87i6cx 1 479.6 | 18 
17 G14 | 656 | 69 |) S087 |) Seoel 8510" /).79.5 1226.5 
18 |_ .622 | 662 | 569 | 093 | 81.5 88.4 | 79.3) 9.1 
19 640 | 699 564 | 135; 82.6 88.7 | 78.6 | 10.1 
eo) .693 | 746 | 626 120 | 83.7 88.8 | 80.2] 8.6 
21 G81 | 747 GOL 143 | 84.3 89.9 | 80.8 9.1 
22 655 | 698 | 591 107 82.1 88.0 | 79.5 | 85 
23 649 | | .699 |  .601 098 | 80.5 82:6 | 79.5 |) 3.1 
24 726 |  .833 6143 190 80.4 83.3 79.1 4.2 
25 806} .873 |  .720 153 82.8 87.9 78.5 9.4 
26 790 | .836 | 745 .O9L 82.5 87.8 78.5 9.3 
27 .809 857 764 .093 83.4 88.7 78.7 | 10.0 
28 812 B84 .739 145 84.2 89.5 |- 79.5 10.0 
29 680d 870 743 127 83.3 87.4 79.6 tee 
80 .762 Ee as Ee a .819 .700 mg 84.3 89.8 80.0 | 9.8 
| 
The Mean Height ~ ‘The Mean Height of the Barometer, as Barometer, as likewise the Dry and Wet Bulb 
‘Thermometer Means are derived, from the hourly observations, made at the 
several hours during the day. 
