Meteorological Observations. xxvii 
Abstract of the Results of the Wourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
wm the month of October 1871. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 
| Range of the Tempera- 
ture for each hour 
Range of the Barometer 
for each hour during 
ght of 
eter at 
y Bulb 
meter 
eh 98 the month. during the month. 
2 ES = : HO 
Hour.) = Eis: Ag 
ma) / 
- | $93 | Mex. | Min. | Dif. | €3 | Max. | Min. | Dit 
aa | eas | 
: eet UE 
Pee | 
Inches. | Inches. | Inches. | Inches. ts) 0 o | o 
Mid- | 
night.| 29.807 | 29.918 | 29.672 | 0.246 | 79.0 | 84.2 | 71.7} 125 
1 798 | 911] .654| .257 | 786 | 840. | 71.5] 125 
2 789} .908| 649; 259 | 783 | 83.8 | 71.5 | 123 
3 781) 902} 647) .255 | 78.0 | 83.6 | 71.5} 12.1 
4 .780 901 627 | 274 77.8 | 83.5 | 71.5 | 12.0 
5 woa| 915 | 625 | 200) 977.6 |° 83.4 | 410) 4 
6 610) . 943! .643| .300 | 77:5 | 83.2 | 71.0} 192 
7 827 | .945 | 673 | 272 | 78.3 | 83.7 | 71.7 | 12.0 
8 847 | .965| 676) .289 | 806 | 85.5 | 72.0] 13.5 
9 .860 977 705 | .272 82.2 | 87.5 | 72.5} 15.0 
10 861) 974] .707| .267 | 83.9 | 89.5 | 73.0| 165 
il 845 | 960) 685 | .275 | 848 | 90.6 | 73.0] 17.5 
Noon.| .824| 944] .668| .276 | $5.4 | 90.7 | 73.6] 171 
1 798 | 920} 646) .274 | 862 | 91.5 | 74.0] 17.5 
2 .774| 894] .682| 262 | 865 | 91.6 | 73.0 | 18.5 
3 759 | .885| .624| .261 | 866 | 92.0 | 43.7| 183 
4 755 | .889| 631) .268 | 860 | 91.7 | 735] 182 
15 760} 879} .634| .245 | 85.1 | 91.0 | 73.0| 18.0 
6 769 | .880|  .642| .238 | 83.1 | 89.0 | 72.3| 16.7 
7 787} .903| 656] .247 | 81.8 | 87.5 | 72.1] 16.4 
8 908 | .924| 672| ‘252 | 810 | 65 | 724| 141 
9 819 | .932| .671| .261 | 803 | 86.0 | 72.4| 13.6 
10 824| .939] .689| .250 | 796 | 85.5 | 735 13.0 
il 821 | .931| .682| .249 | 792 | 846 | 72.7] 119 
! 
~ The Mean Height of the Barometer, as likewise the Dry and Wet Bub 
Thermometer Means are derived from the observations made at Lhe several 
hours during the month. 
