. 
4 
4 
Meteorological Observations. Cl 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
an the month of December 1866. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
gone thereon. 
63 Rance a ne Beep eein = . | Range of the Tempera- 
oe ‘ease (oral hour during a 8 ture for each hour 
"eps 2 the month. ae during the month. 
os a 
Hour.) 5 oom ea 3 
e233 | Max. | Min. | Dif. | 32 | Max. | Min. | Dif 
As a 
Inches. | Inches. | Inches. | Inches. Co) ) 0 7) 
1 
Mid- 
night.| 30.082 | 30.205 | 29.958 | 0.247 63.2 68.6 58.6 | 10.0 
1 076 195 952 243 62.6 68.4 58.4 | 10.0 
2 .069 188 946 242 61.9 68.0 58.2 9.8 
3 .063 186 943 243 61.2 67.4 58.0 9.4, 
A, .060 182 .940 242 60.6 67.0 57.4 9.6 
5 .O70 .196 949 247 60.0 66.3 56.7 9.6 
6 085 212 968 244, 59.2 65.0 56.4) 8.6 
Uf 103 231 .982 249 59.0 64.6 55.6 9.0 
8 126 .253 993 .260 62.2 66.5 57.6 8.9 
9 148 .266 | 30.03: .233 65.9 69.8 62.6 7.2 
10 .150 213 O31 242 69.6 73.2 65.0 8.2 
11 131 209 008 201 72.6 70.4 69.2 7.2 
Noon. 097 SBI | ASS) .258 74.7 79.0 71.0 8.0 
1 O64 186 .930 .206 75.8 80.0 73.2 6.8 
2 040 157 -908 249 76.8 81.2 74.2 7.0 
3 .026 135 891 244) 76.8 82.0 74.1 7.9 
4, O21 124 .899 234 B24 80.2 72.9 7.3 
5 -030 129 904 .225 73.3 77.6 71.3 6.3 
6 O44) 142 914 .228 70.3 74.7 68.5 6.2 
7 -960 .162 932 230 68.3 73.0 66.0 7.0 
8 O76 174, 949 225 66.9 72.0 64.2 7.8 
9 O91 194 -967 227 65.8 70.7 62.6 8.1 
10 101 221 969 252 64.9 69.8 59.9 9.9 
11 -093 212 -961 2ol 64.1 69.2 59.0 | 10.2 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived from the observations made at ube several 
hours during the month. 
