Meteorological Observations. XVil 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of October, 1863. 
Latitude 22° 33’ 1” North. Longitude 88° 20’ 34” East. 
Feet. 
Height of the Cistern of the Standard Barometer above the Sea-level, 18.11. 
Daily Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon, 
oo Pounce 
2 o 8 Range of the Barometer So Range of the Tempera- 
ae : 2 during the day. Pa I ture during the day. 
ONE ro 
Ta As 
° go” < © 
g B asl & Max. Min. Diff. sa Max. | Min. | Diff. 
3 
ie les a 
Inches. | Inches. | Inches. | Inches. 0 0 0 0 
1 | 29.646 | 29.713 | 29.588 0.125 81.1 86.1 76.8 9.3 
2 .668 .725 .602 123 81.8 86.1 79.2 6.9 
3 678 729 617 112 81.6 88.0 79.0 9.0 
4 | Sunday. 
5 621 673 0549 124 80.0 82.4 78.6 3.8 
6 .662 730 605 125 79.9 84.5 78.0 6.5 
7 751 807 «702 105 81.5 86.0 77.4 8.6 
8 .828 .895 .766 129 82.2 88.0 77.4 | 10.6 
9 844 923 791 132 82.5 88.5 78.2 | 10.3 
10 841 917 173 144 83.1 88.2 77.8 | 10.4 
11 - | Sunday. 
12 841 915 .803 112 84.2 90.0 79.1 | 10.9 
13 858 917 “797 .120 85.1 90.4 80.4 | 10.0 
14 842 917 .783 134 85.2 90.3 81.6 8.7 
15 .849 911 791 .120 84.7 89.8 80.8 9.0 
16 874 946 822 124 84.2 89.6 80.0 9.6 
17 834 .907 174 133 80.1 84.2 77.2 7.0 
18 | Sunday. 
19 922 .981 868 113 81.1 86.8 76.2 | 10.6 
20 948 | 30.003 .904 .099 789 83.6 74.4 9.2 
21 949 .029 .892 137 79.3 85.9 74.0 | 11.9 
22 .908 | 29,976 .839 137 79.4 86.6 73.2 | 18.4 
23 895 981 .830 151 79.3 86.6 72.2 | 14.4 
24 876 945 .832 113 79.8 86.9 72.4 | 14.5 
25 | Sunday. 
26 797 872 723 149 79.8 86.6 74.2 | 12.4 
27 739 -796 .667 129 81.2 88.0 75.4 | 12.6 
28 767 .820 722 .098 80.3 84.6 78.6 6.0 
29 813 870 “749 121 81.0 86.6 76.8 9.8 
_ 380 -860 .928 812 116 79.9 84.7 76.0 8.7 
31 -862 -931 804 127 77.9 83.4 73.2 | 10.2 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
mo Means are derived from the hourly Observations made during 
the day. 
