Meteorological Observations. xelii 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
in the month of December 1871. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon, 
68 Range of the Barometer =... | Range of the Tempera- 
eae for each hour during ms ture for each hour 
"ep 9 3 the month. 2 | during the month. 
v ES et crt Ps eee ee fae 
Hour.| 5 Eo Q a | 
Bake Max. | Min. | Dif. | §3 | Max. | Min.| Diff. 
ad a | 
| 2 : | | 
Inches. | Inches. | Inches. Piatiog ) | ty) o) | ° 
Mid- | | 
night.| 30.045 | 30.150 | 29.914 0.236 | 65.4 | 71.0 | 61.0] 10.0 
1 L035 141 905 | .236 | 647 | 70.5 | 60.5 | 100 
2 Ost) 25%). 898 | 227 | 641 | 70.0 | 59.3 10.7 
3 O17 118 894 | .224 | 636 | 69.4 | 59.1] 103 
4 oly} .129| .899| .230 | 631 | 69.0 | 588] 102 
5 029 | 1137 ‘910| (227 | 626 | 680 | 580/ 100 
6 043 145 920} .225 | 621 | 67.5 | 575/ 100 
7 064 165 940 | .225 | 619 | 67.5 | 57.0| 105 
8 091 .178 979} .199 | 648 | 71.4 | 59.7] 117 
9 114 196 | 30.006} .190 | 68.7 | 747 | 62.0| 127 
10 117} .197| .003| .194 | 71.6 | 78.1 | 647| 134 
il 099 | 175. | 29.978 | 197 | 73.9 | 81.0 | 66.8 | 14.2 
| | ee 
| | ) 
Noon.| .068 AL 945 | .196 | 75.6 | 820 | 68.9); 13.1 
1 .032 104} 911] .193 | 76.5 | 822 | 706) 11.6 
2 .008 077 898 | .179 | 775 | 825 | 72.4] 101 
3 | 29.993 071 888 | .183 77.5 | 822 | 72.7| 95 
4 989} .065| .880} .185 | 76.3 | 81.2 | 718) 9.4 
5 997 | .072| .899} 173 | 74.9 | 79.6 | 71.0) 86 
6 | 30.007 .082 912} 3170 | 72.2 77.0 | 68.0| 9.0 
7 023 -096 -930 | .166 70.4 | 75.6 | 662) 9.4 
8 O41 | 126 949 | .177 | 68.9 | 748 | 645| 103 
9 055 146 959 | .187 67.7 | 73.4 | 62.5| 109 
10 061 .149 971 | 178 | 668 | 72.6 | 61.6! 109 
ll | 71.8 | 61.0] 108 
087 | .155| .970| .185. | 65.9 | 
| 
ve 
. Bee. St 
The Mean Height of the Barometer, as ikawiad athe Dry and Wet Bulb 
Thermometer Means are derived from the observations made at the several 
hours during the month. 
