Meteorological Observations. 
XVI1E 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of March 1866. 
Latitude 22° 23’ 1” North. Longitude 88° 20’ 34” East. 
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 
ene 
se 
3B ee 
Date. ZA 
mn 
Bebe 
Sse 
Inches. 
1 29.789 
2 821 
3 821 
A 756 
5 .786 
6 .816 
7 792 
8 793 
9 .800 
10 184 
11 .808 
12 977 
13 .967 
14 845 
15 828 
16 871 
17 885 
18 .820 
19 -798 
20 .842 
21 198 
22 Bl 
23 715 
24, 151 
25 748 
26 .700 
27 .730 
28 .812 
29 .859 
30 .855 
31 .806 
Range of the Barometer = # | Range of the Tempera- 
during the day. as ture during the day. 
a: 
me 
Max. Min. Diff. aire Max. | Min. | Diff. 
so 
Inches. | Inches. | Inches. ) co) Co) | ) 
29.866 | 29.740 | 0.126) 814 93.6 | 72.8 | 20.8 
.898 1A8 .150 82.3 92.8 74.5. , 18.3 
oo7 | 745 | 182| 814 | 917 | 72.4. 193 
818 .678 140 $1.8 93.6. 72.0: | 24.6 
865 732 133 | 82.4 94.8, | 72:4.) 22.4 
892 57 135 $1.8 94.0 714 | 22.6 
.860 124 136 82.6 94.0 75.4. | 18.6 
876 119 157 83.4 95.2 725 | 22.7 
872 132 140 83.8 95.0 75.4 | 19.6 
.859 fg 140, 83.4 94.4) WG |) Men 
937 178 162 83.6. 92.4. 76.8 | 15.6 
30.060 .900 .160 83.4) 92.4 77.4 | 15.0: 
.056 872 184 83.3 92.2 77.8 | 14.4 
29.945 764 18l 86.4 96.4 77.9 | 185 
924 761 163.| 84.3 94.0 76.6 | 17.4. 
.952 812 140 84.5 94.0 79.0 | 15.0: 
.970 822 148 | 84.0 94.4 | 77.0 | 17.4 
899 750 149 83.4 92.9 77.0 | 15.9 
869 . 129 140 84.5 95.0 77.6 | 17.4 
921 HEY) 142 84.3 94.0 76.6 | 17.4 
878 703 175 85.5 96.5 76.8 | 19.7 
803 .619 L384 86.7 98.6 77.8 | 20.8 
790 .663 127 86.4 98.4 77.8 | 20.6 
.838 684 154 84.9 95.3 HOA A AUC 
827 678 149 86.4 96.2 81.0 | 15.2 
769 .626 143 87.4 97.4, SOM7, | 167 
811 .668 143 86.1 95.1 79.5 | 15.6 
914 743 ABE fo tile) 93.2 | 76.0 | 17.2 
.960 ollHlk .189 81.9 91.6 73.8 | 17.8 
927 175 152 81.0 91.0 72.4 | 18.6 
887 139 148 | 83.7 93.0 | 77.0 | 16.0 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived, from the hourly observations, made during 
the day. 
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