Meteorological Observations. ix 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Caleutta, 
in the month of February, 1865. 
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. 








“nw 2s 
5 is Range of the Barometer a 8 |Range of the Tempera- 
“eh 5 3 during the day, ee ture during the day. 
aaa 5 5 
Date. | 74 BS es 5 
ga2 | Max. | Min. | Diff. 6 | Max. | Min. | Dif 
a a 
Inches. | Inches. | Inches. | Inches. 0 ° 0 0 
1 30.002 | 30.070 | 29.946 0.124 718 79.2 64.4 | 14.8 
2 043 106 993 -113 72.1 79.6 66.6 | 13.0 
3 036 115 986 129 73.0 81.2 67.4 | 13.8 
4 007 086 -933 153 73.0 81.3 66.2 | 15.1 
5 | Sunday. 
6 .008 087 948 139°} 72,4 80.4 | 64.4 | 16.0 
7 29.986 092 -909 183 | 71.2 80.1 61.2 | 18.9 
8 907 | 29.990 829 161 74.5 84.6 | 66.0 | 18.6 
g 891 976 846 130 72.8 79.5 69.2 | 10.3 
10 873 953 .802 151 73.0 | 81.2 68.6 | 12.6 
11 -900 998 835 163 70,3 76.0 66.6] 9.4 
12. | Sunday. 
13 30.008 | 30.101 .939 .162 72.8 80.1 67.2 | 129 
14 .038 128 .985 143 71.5 80.6 62.2 | 18.4 
15 .060 157 | 30.015 142 71.7 814 63.8 | 17.6 
16 062 -139 004 135 72.9 83.3 62.6 | 20.7 
17 29.982 .064 | 29.901 163 74.8 84.6 65:4 | 19.2 
18 .913 | 29.986 851 135 77.0 87.1 68.0 | 19.1 
19 | Sunday. | 
20 -929 | 30.025 876 | .149 78.6 87.8 70.2 | 17.6 
21 -903 -002 -826 176 78.4 86.1 70.6 | 15.5 
22 -858 -000 -830 170 77.0 85.0 711 | 13.9 
23 | -940 -040 .853 187 76.3 85.4 67.6 | 17.8 
24 963 .066 .870 196 76.6 87.0 66.2 | 20.8 
25 949 058 .880 178 74.3 80.8 | 68.8 | 12.0 
26 | Sunday. 
27 994 081 .886 195 71.6 78:2 G7aw |. 11 
30.065 157 | 30.013 144) 72.2 80,2 64.6 | 15.6 








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