Meteorological Observations. 



IX 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the mouth of February 1868. 



Latitude 22° 33' 1" North. Longitude 88° 20' 34." East. 



Height of the Cistern of the Standard Barometer above the sea level, 18.11 feet. 



Daily Means, &c. of the Observations and of the Hygrometrical elements 

 dependent thereon. 





o *- 



Range of the Barometer 



3 *"* 



Range of the Tempera- 





be 2 -5 



2«a 



during the day. 





ture during the day. 



Date. 

















§j2 



Max. 



Min. 



DifF. 



9 s 



Max. 



Min. 



Diff. 





M ^ «S 









^H 











r^ 









r^ 











Inches. 



Inches. 



Inches. 



Indies. 



O 















1 



29.987 



30.079 



29.928 



0.151 



66.9 



73.5 



61.0 



12.5 



2 



.988 



.070 



.918 



.152 



66.3 



76.5 



57.4 



19.1 



3 



.969 



.034 



.906 



.128 



65.0 



70.0 



62.0 



8.0 



4 



.997 



.070 



.939 



.131 



66.3 



72.5 



61.0 



11.5 



5 



30.017 



.097 



.948 



.149 



66.0 



74.0 



58.5 



15.5 



6 



29.994 



.080 



.921 



.159 



66.9 



76.4 



58.5 



17.9 



.7 



.999 



.064 



.948 



.110 



68.4 



77.8 



59.5 



18.3 



8 



30.045 



.135 



.975 



.160 



69.9 



77.5 



63.5 



14.0 



9 



.067 



.155 



30.010 



.145 



70.5 



78.5 



64.0 



14.5 



10 



.055 



.124 



.001 



.123 



69.9 



76.8 



62.0 



14.8 



11 



.035 



.106 



29.969 



.137 



71.2 



79.2 



63.6 



15.7 



12 



29.995 



.069 



.949 



.120 



72.8 



81.7 



67.0 



14.7 



13 



.942 



.001 



.882 



.119 



75.4 



84.3 



69.3 



15.0 



14 



30.006 



.083 



.954 



.129 



76.2 



83.6 



71.2 



12.4 



15 



.064 



.146 



30.021 



.125 



74.9 



82.5 



67.5 



15.0 



16 



.059 



.142 



29.997 



.145 



73.2 



81.4 



65.5 



15.9 



17 



29.993 



.067 



.922 



.145 



72.8 



83.0 



64.0 



19.0 



18 



.963 



.028 



.894 



.134 



74.1 



83.0 



65.2 



17.8 



19 



.922 



.025 



.844 



.181 



73.0 



80.5 



67.5 



13.0 



20 



.838 



29.893 



.743 



.150 



75.9 



84.6 



70.2 



14.4 



21 



.873 



.962 



.810 



.152 



78.0 



88.5 



70.5 



18.0 



22 



.933 



30.009 



.869 



.140 



79.6 



87.0 



73.0 



14.0 



23 



.859 



29.935 



.756 



.179 



76.7 



86.7 



71.5 



15.2 



24 



.745 



.811 



.694 



.117 



76.8 



82.5 



71.6 



10.9 



25 



.855 



.930 



.794 



•136 



75.4 



82.6 



69.0 



13.6 



26 



.922 



30.013 



.870 



.143 



73.1 



80.0 



68.0 



12.0 



27 



.920 



.005 



.855 



.150 



71.2 



80.7 



62.6 



18.1 



28 



.872 



29.944 



.771 



.173 



72.3 



83.7 



61.5 



22.2 



29 



.807 



.892 



.723 



.169 



72.6 



82.8 



64.5 



18.3 



The Mean Height of the Barometer, as likewise the Dry and Wet Bulb 

 Thermometer Means are derived, from the hourly observations, made during 

 the day. 



