Meteorological Observations. XXV 
Abstract of the Results of the Hourly Meleorological Observations 
taken at the Surveyor General’s Office, Caleutla, 
tu the month of April 1871. 
Latitude 22° 33’ 1” North. Longitude 88° 20’ 34” Kast. 
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. 
Cy 
ie s _ | Range of the Barometer 5 « |Range of the Tempera- 
See during the day. FA 3 ture during the day. 
3 oe cE “ae 
Date. | FS 0 = 5 | 
e2 | Max. | Min. | Diff. | £4 | Max. | Min. | Diff. 
P= Es) S| ia | 
Inches. | Inches. | Inches. | Inches. Oo ) te) ) 
1” | 29.770 | 29.852 | 29.715 | 0.137] 846 | 944 | 78.0] 16.4 
2 .823 894 771 123 83.6 90.0 78.8 ; 112 
3 .816 .872 727 145 82.1 89.5 73.6 | 15.9 
4 762 836 672 164 80.2 88.0 72.3 | 15.7 
5 -769 847 703 144 82.8 91.3 76.5 | 14.8 
6 .803 876 754 122 82.7 89.2 79.0 | 10.2 
7 743 813 -660 153 83.8 91.0 78.5 | 12.5 
8 729 795 676 119 84.3 93.0 78.6 | 14.4 
9 -769 826 725 101 83.7 88.2 80.5 “3 
10 .839 -909 .768 141 85.5 93.3 80.8 | 12.5 
ll 881 -948 -802 -146 84.9 92.7 78.7 | 14.0 
12 841 -915 759 -156 85.3 94.8 79.5 | 15.0 
13 757 -826 674 152 85.4 94.2 80.5 | 13.7 
14 716 -766 631 135 85.0 93.6 79.4 | 14.2 
15 -746 854 .677 177 81.0 93.0 72.3 | 20.7 
16 .837 895 778 117 75.8 83.0 72.0 | 11.0 
a7 .829 -911 TAL 170 79.3 88.6 71.0 | 17.6 
18 798 866 730 136 81.6 90.0 74.0 | 16.0 
19 784 -860 701 -159 83.7 92.5 77.6.) 16.0 
20 769 826 -685 141 81.9 93.0 74.3 | 18.7 
21 757 -820 681 139 80.2 90.2 73.5 | 16.7 
22 728 831 651 .180 76.2 80.8 72.2 8.6 
23 -704 775 633 142 79.7 87.6 72.4 | 15.2 
24 727 -800 -681 119 81.2 86.3 75.2 | 11.1 
25 759 -816 .696 .120 81.9 89.0 72.4 |) RS 
26 744 818 -689 129 81.9 89.2 74.5 | 14.7 
27 722 788 -656 132 85.0 92.6 79.5 | 13.1 
28 765 855 703 152 85.5 93.0 80.0 | 13.0 
29 752 -830 .679 151 86.0 93.8 81.0 | 12.8 
30 -709 784 651 133 86.1 94.5 80.0 | 14.5 
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. 
