Meteorological Observations. 



lxxiii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General' 's Office, Calcutta, 



in the month of October 1866. 



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. 







Eange of the Barometer 





Eange of Tempera* 





33 ^ +=> 



• h K Co 



during the day. 





ture during the day. 



Date. 

















_.pH<M 









e f- 1 











|s2 



Max. 



Min. 



Diff. 



l£ 



Max. 



Min. 



Diff. 





»* - 









S3^ 











Inches. 



Inches. 



Inches. 



Inches. 



O 











o 



1 



29.759 



29.808 



29.689 



0.119 



85.2 



91.2 



82.0 



9.2 



2 



.795 



.857 



.745 



.112 



84.3 



92.2 



81.4 



10.8 



3 



.853 



.915 



.791 



.124 



85.6 



90.4 



81.0 



9.4 



4 



.849 



.913 



.785 



.128 



84,0 



90.6 



80.0 



10.6 



5 



.815 



•864 



.733 



.131 



84.4 



91.2 



80.4 



10.8 



6 



.821 



.884 



.759 



.125 



83.7 



88.0 



81.0 



7.0 



7 



.819 



.882 



.748 



.134 



84.1 



89.8 



79.6 



10.2 



8 



.847 



.901 



.780 



.121 



82.7 



87.4 



79.4 



8.0 



9 



.841 



.903 



.782 



.121 



81.5 



89.2 



77.8 



11.4 



10 



.779 



.854 



.705 



.149 



80.2 



85.4 



77.0 



8.4 



11 



.799 



.875 



.743 



.132 



82.5 



88.6 



78.0 



10.6 



12 



.876 



.938 



.832 



.106 



83.1 



89.8 



78.0 



11.8 



13 



.877 



.953 



.808 



.145 



84.1 



89.9 



79.°, 



10.7 



14 



.855 



.923 



.797 



.126 



85.0 



90.5 



81.0 



9.5 



15 



.839 



.902 



.773 



.129 



84.4 



90.2 



80.7 



9.5 



16 



.869 



.928 



.816 



.112 



81.9 



88.4 



78.8 



9.6 



17 



.905 



.951 



.857 



.094 



83.2 



90.0 



78.0 



12.0 



18 



.936 



.998 



.880 



.118 



82.4 



88.0 



77.4 



10.6 



19 



.909 



.981 



.841 



.140 



82.6 



88.8 



77.0 



11.8 



20 



.869 



.965 



.787 



.178 



83.7 



90.2 



77.6 



12.6 



21 



.820 



.875 



.751 



.124 



81.5 



85.6 



77.7 



7.9 



22 



.778 



.836 



.706 



.130 



80.5 



84.2 



78.0 



6.2 



23 



.749 



.810 



.668 



.142 



80.2 



87.0 



75.8 



11.2 



24 



.638 



.715 



.566 



.149 



75.9 



77.5 



74.0 



3.5 



25 



.628 



.802 



.514 



.288 



79.2 



82.7 



76.5 



6.2 



26 



.850 



.915 



.778 



.137 



75.8 



79.4 



71.9 



7.5 



27 



.924 



.982 



.848 



.134 



78.2 



83.4 



73.6 



9.8 



28 



.950 



30.004 



.900 



.104 



78.9 



86.0 



73.6 



12.4 



29 



.922 



29.994 



.879 



.115 



79.6 



85.6 



74.0 



11.6 



30 



.904 



.966 



.849 



.117 



79.3 



85.4 



74.8 



10.6 



31 



.895 



.954 



.843 



.111 



79.6 



84.6 



75.4 



9.2 



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. 



