Meteorological Observa lions. 



XXV 



Abstract of the .Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Ojjice, Calcutta, 



in the month of April 1867. 



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



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



Daily Means, &c. of tlie Observations and of tbe Hygrometrical elements 

 dependent thereon. 





**-< . 









^3 











4-2 +J 



^3 ciy +i 



Eange of [lie Barometer 

 during tbe day. 



f§l 



Range of tbe Te 

 tui'e during the 



mpera- 

 day. 





r~i £3 O 









£?3 









Date. 

















S <s <™ 



Max. 



Min. 



Diff. 



II 



Max. 



Min. 



Dili. 





l ( +3 Ct 









#* 











Indies. 



Inches. 



Inches. 



Indies. 



o 















1 



29.795 



29.883 



29.718 



0.165 



82.4 



95.2 



73.0 



22.2 



2 



.743 



.819 



.(574 



.115 



84.6 



96.6 



75.2 



21.4 



3 



.727 



.818 



.650 



.168 



85.6 



98.0 



75.8 



22.2 



4 



.725 



.8(>2 



.670 



.132 



85.5 



96.8 



76.3 



20.5 



5 



.702 



.754 



.639 



.115 



87.4 



101.2 



77.8 



23.4 



6 



.746 



.815 



.6^8 



.117 



88.7 



102,5 



77.6 



24.9 



7 



.769 



.888 



.706 



.162 



88.0 



98.5 



80.0 



18.5 



8 



.770 



.852 



.710 



.142 



86.3 



98.0 



77.2 



20.8 



9 



.797 



.885 



.723 



.162 



86.3 



97.9 



77.4 



20.5 



10 



.815 



.886 



.726 



.160 



82.9 



97.4 



75.8 



2i.6 



11 



.802 



.872 



.720 



.152 



81.0 



93.0 



71.4 



21.6 



12 



.846 



.93d 



.778 



.158 



81.8 



91.0 



71.0 



17.0 



13 



.895 



.951 



.810 



.141 



80.1 



88.0 



73.4 



14.6 



14 



.799 



.881 



.696 



.185 



82.8 



92.8 



73.4 



' 19.4 



15 



.769 



.839 



.712 



.127 



85.3 



95.8 



78.2 



17.6 



16 



.803 



.919 



.740 



.179 



81.0 



92.7 



76.2 



16.5 



17 



.898 



.9(32 



# .829 



.134, 



79.7 



88.4 



71.2 



17.2 



18 



.895 



.969 



.821 



.148 



82.1 



92.2 



75.0 



17.2 



19 



.852 



.942 



.760 



.182 



Si. 5 



96.6 



74.5 



22.1 



20 



.787 



.858 



.714 



.144 



85.8 



97.4 



76.4 



21.0 



21 



.742 



.802 



.698 



.104 



84.1 



97.8 



77.4 



20.4 



22 



.786 



.845 



.694 



.151 



84.6 



95.6 



76.4 



19.2 



23 



.821 



.901 



.749 



.152 



85.1 



94.6 



- 76.0 



18.6 



24 



.777 



.830 



.675 



.155 



85.4 



93.6 



78.6 



15.0 



25 



.771 



.827 



.GUI, 



.133 



85.2 



93.6- 



79.5 



14.1 



26 



.851 



.930 



.756 



.174 



81.6 



91.8 



78.1 



13.7 



27 



.817 



.915 



.767 



.148 



85.9 



97.0 



76.6 



20.4 



28 



.780 



.868 



.706 



.162 



87.5 



97.4 



79.6 



17.8 



29 



.748 



.829 



.668 



.161 



89.2 



99.6 



81.2 



18.4 



30 



.734 



.803 



.657 



.146 



89.6 



99.4 



81.4 



18.0 



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. 



