Meteorvlogical Observations. ix 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor Generat’s Office, Calculla, 
in the mouth of #ebruary 1871. 
Latitude 22° 33’ 1” North. Longitude 88° 20’ 34” Kast. 
Height of the Cistern of the Standard Barometer above the sea level, 18.11 feet. 
Daily Means, Xe. of the Observations and of the Hygrometrical elements 
dependent thereon. 
| 
eg, | ee al ° m 
ae Range of the Barometer cE; Range of the Tempera- 
a 5 during the day. A > ture during the day. 
ee ee ee ye 
Date. | ES a, | ae | Lae 
ec | Max. | Min. | Dif. | £2 | Max. | Min. | Dif 
ja | | a nag 
Inches. | Iaches. | Inches. Inches. bat SG ° fa) | ° 
) ) 
1 | 30.028 | 30.116 | 29.958 | 0.158 | 71.4 81.8 | 64.9] 16.9 
2 | 29.952, .037|; 887) .150; 712 83.2 | 60.5 , 22.7 
3 906 | 29.970; .840| .130| 739 | 83.5 | 68.8] 14.7 
4 | £909 994. 834 160 | 71.3 | 805 | 63.0! 17.6 
5 868 | .937 803 134| 706 | 905 | 62.3 | 18.2 
6 | .894| .981 | 841 140} 71.8 | 82.5 | 62.0] 20.5 
¥ 903 | .976| .847 129| 725 , 814 | 645) 16.9 
8 895 | .959 | .838 121 | 73.6 | 84.0 | 65.5 | 18.5 
9 899 | 978 £850 128 | 74.1 $3.6 | 65.4 | 18.1 
10 899 | .967 | .840 127 | 74.6 85.0 | 66.5 | 18.5 
11 912| .995| .865 130; 75.6 | 86.9 | 68.0/ 18.0 
12 893 .952 | 840 112| 975.4 | 86.0 | 682)| 17.8 
13 882 | 964 | .809 155 | 76.4 | 88.6 | 685! 20.1 
14 | .887| 953; .839| 114] 77.1 | 89.5 | 69.0} 20.5 
15 | .88| 956} .837 119 | 788 | 905 | 706| 19.9 
16 | 872| 959 816 143 | 769 | 868 | 689 | 17.9 
17 | 916 | 30.019| 877 142] 69.9 | 74.0 | 66.7| 7.3 
18 901 | 29.986 | 836] .150| 72.0 80.9 | 65.5 | 15.4 
19 926) .995| 865 | 130, 73.6 82.0 | 66.5 | 15.5 
20 .926 £995 866) .129| 722 80.4 | 66.0 | 14.4 
21 955 | 30.031 | .905| .126| 713 80.4 | 62.0) 18.4 
22 936 | .025| .877 148 | 74.5 85.0 | 65.2 19.8 
23 873 | 29.944 |  .809 135 | 77.4 87.5 | 68.8 | 18.7 
24 .890 .962 |  .830 132 | 80.0 89.6 | 73.7 | 15.9 
25 915 995 | 847 148 | 78.3 86.8 | 72.5 | 14.3 
26 905 990 | 833 157 | 75.4 82.5 69.8 | 12.7 
27 878 | 962 | 836 126 | 74.6 83.0 | 68.3 | 14.7 
28 896 981 | 841 140, 74.9 85.5 | 65.0 20.5 
| ) ; 
) ) ) 
| / | | | | 
The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 
Thermometer Means are derived, from the howly observations, made at the 
“several howrs during the day, 
