Meteorological Observations. ill 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of January, 1866. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
6 8 Range of the Barometer =. |Range of the Tempera- 
43 2 = for each hour during a 2 ture for each hour 
"Ep 5 s the month. ba during the month. 
Hour. | 5 & a ra e 
qo” : : 2 9 i ; 
Rog Max. Min. Diff. @ a Max. Min. | Diff. 
or Ss oe 
= a 
Inches. | Inches. | Inches. | Inches. Co) to) oO Co) 
Mid- 
night. 30.046 |30.119 | 29.921 0.198 65.5 72.4 60.0 | 12.4 
1 .039 113 902 211 64.8 72.4 58.8 | 13.6 
2 .030 .LO06 .886 220 64.2 72.0 57.8 | 15.2 
3 021 .099 867 232, 63.6 71.8 57.4 | 14.4 
4 014: 094: 848 246 62.9 70.4: 57.0 | 13.4 
5 .022 103 861 242 62.3 69.7 56.4 | 13.3 
6 .038 120 867 258 62.1 69.5 55.8 | 13.7 
7 .059 .156 .885 271 61.8 67.4 56.0 | 11.4 
8 .088 .190 927 263. 63.7 69.2 57.8 | 11.4 
9 114 215 957 258 67.2 73.2, 61.2 | 12.0 
10 122 221 O71 .250 73.8 ea 63.8 | 13.9 
11 105 197 .960 237 73.2 79.4 63.6 | 15.8 
Noon. | .075 167 | .935 232 75.2 81.6 | 62.6 | 19.0 
1 .035 124 897 2217 76.5 82.8 62.4 | 20.4 
2 007 O91 871 220 77.5 84.0 62.8 | 21.2 
3 | 29.989 077 861 216 78.0 84.7 63.8 | 20.9 
4 -983 064: 851 213 76.8 82.8 64.4 | 18.4 
5 .992 077 864 213 75.5 81.5 63.8 | 17.7 
6 .999 076 .880 .L96 72.6 79.2 62.6 | 16.6 
7 |30.018 .088 904: 184) 70.9 77.0 62.8 | 14.2 
8 .035 -LO9 .929 180 69.5 75.3 62.8 | 12.5 
9 .050 121 941 180 68.1 TAL 62.6 | 11.5 
10 .056 137 .940 197 67.0 73.4: 61,8 | 11.6 
11 .052 132 927 205 66,1 72.5 60.6 | 11.9 
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, 
