Meteorological Observations. x1 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of February, 1866. 
‘Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
6 8 Range of the Barometer =. [Range of the Tempera- 
2 a2 3 _for each hour during 9 2 ture for each hour 
"op 8 the month. bd during the month. 
Hour. | © #5" 5 8 
~ | OAs As 
go re . do : fs 
Aas Max. Min. Diff. a Max. Min. | Diff. 
ors oe 
a = 
Inches. | Inches. | Inches. | Inches. oO o o ray 
Mid- 
night. | 29.964 |30.079 | 29.831 0.248 66.3 74.2 59.8 | 14.4 
1 954 070 .821 249 65.8 74.0 59.0 | 15.0 
2 943 051 794A 257 65.2 74.0 58.7 | 15.3 
3 931 046 778 .268 64.6 73.5 58.0 | 15.5 
4 925 .039 766 273 64.1 72.4, 57.4 | 15.0 
5 .936 O71 797 274 63.7 71.6 56.8 | 14.8 
6 954: 079 827 252 63.3 71.2 56.6 | 14.6 
if 74 .085 845 240 63.3 70.8 56.2 | 14.6 
8 |30.000 106 .868 238 65.6 71.0 68.8 | 12.2 
9 .026 132 .898 234: 68.9 75.2 60.6 | 14.6 
10 .031 138 883 255 71.6 78.6 60.8 | 17.8 
il 021 AG 884 243 74.0 82.0 62.0 | 20.0 
Noon. |29 .994 .099 847 252, 76.1 86.4: 62.9 | 23.5 
1 962 .063 .813 .250 77 A 88.8 65.0 | 23.8 
2 931 .028 178 -250 78.3 90.6 66.8 | 23.8 
3 SL | SOL 748 264 78.6 91.4: 64.4 | 27.0 
4 .905 .022 740 282 Wes) 91.2 63.8 | 27.4 
5 907 .062 736 326 77.0 90.6 62.8 | 27.8 
6 .915 070 742 328 74.6 87.6 62.5 | 25.1 
a -929 LIL -760 ol 72.6 84.6 62.2 | 22.4 
8 948 122 784: 338 70.9 80.6 62,0 | 18.6 
9 962 17 798 319 69.7 78.4: 62.1 | 16.3 
10 .969 080 .809 271 68.6 77.2 | 61.8 | 15.4 
va 964 071 804 267 67.6 76.0 61.4 | 14.6 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived from the Observations made at the several 
hours during the month, 
