Meteorological Observations. lvii 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of February, 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. 
= S ee 
s Bae Range of the Barometer z 3  |Range of the Tempera- 
“Ep ae during the day. i 5 ture during the day. 
o 5 ‘si 
Date, | 72 a i a Ge - 
=< | Max. | Min. | Dif. | 8 | Max. | Min. | Dif. 
a a 
Inches. | Inches. | Inches. | Inches. ) ty) | oO 0 
1 | Sunday. 
2 29.994 | 30.082 | 29.935 0.147 | 69.7 81.2 60.0 | 21.2 
3 £900 | 29.987 826 GH | ZO ela 628 | 18.6 
4 867 944, 812 132) 71.1 81.4 62.6 | 18.8 
5 887 962 836 AU26) lez 81.0 | 62.8 | 18.2 
6 916 984 855 2129) | 72.4: 81.8 | 63.8 | 18.0 
7 -964 | 30.069 907 | 162 | 73.4 81.8 66.4 | 15.4 
8 | Sunday. | 
| | 
ty) .920 001 77 ; 124 | . 69.8 79.6 60.8 | 18.8 
10 .909 | 29.981 801 130 | 70.1 80.2 60.0 | 20.2 
il .965 | 30.026 882 | 144) 63.7 69.8 | 61.2 8.6 
12 980 047 923 | 124 | 68.0 75.2 62.4 | 12.8 
13 961 050 | 895 | .155 | 68.8 77.5 60.0 | 17.5 
14 902 | 29.964: | 850) 114 | 67.5 72.8 63.2 9.6 
15 | Sunday. 
16 AB BEG RR RE GRA Wee GS) | oe 
17 919 soil 867 | 124 | 72.2 81.2 65.9 | 15.3 
18 971 | 30.044: 924 | 120, 72.9 82.8 63.8 | 19.0 
19 994 073 935 | .188 | 73.5 83.8 64.0 | 19.8 
20 80.009 .093 955 138 | 74.3 83.9 66.2 | 17.7 
21 29.988 .070 927 143, 73.9 82.6 67.0 | 15.6 
22 =| Sunday. 
23 964) 051 .899 152 | 70.1 82.4 59.4 | 23.0 
24, 985 097 928 GD eile 83.0 61.6 | 21.4 
25 961 .036 898 138 | 72.1 84.6 61.1 | 23.5 
26 .924 | 29.995 861 134 | 74.6 85.6 65.2 | 20.4 
27 913 989 829 160 | 75.4 86.8 65.8 | 21.0 
28 903 995 841 154) 77.8 87.8 67.0 | 20.8 
The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb 
Thermometers are derived from the twenty-four hourly Observations made during 
the day. 
