Meteorological Observations. 



xviu 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of March 1875. 



Latitude aa° 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, Sec. of the Observations and of the Hygrometrical elements 



dependent thereon. 





o *-< 



Bange 



of the Barometer 





Bange 



of the T 



empera- 







during the day. 





ture 



during the day. 



Date 























a s 











g ffiW 



Max. 



Min. 



Diff. 



2^ 



Max. 



Min. 



DifF 





4> ■— ' 15 



1 







^ 











Tnehes. 



Tnehes. 



Tnehes. 



Tnehes. 



o 











o 



1 



29.867 



29.927 



29.822 



0.105 



76.1 



88.2 



67.7 



20.5 



2 



.899 



.973 



.847 



.126 



77.7 



87.4 



71.3 



16.1 



3 



.912 



.997 



.842 



.155 



78.1 



88.0 



71.5 



16.5 



4 



.926 



30.003 



.870 



.133 



78.9 



89.0 



71.5 



17.5 



5 



.966 



.014 



.909 



.135 



79.1 



91.0 



71.3 



19.7 



6 



.930 



.013 



.856 



.157 



80.1 



92.0 



• 73.0 



19.0 



7 



.810 



29.921 



.762 



.159 



81.5 



94.0 



73.0 



21.0 



8 



.797 



.881 



.734 



.150 



81.9 



92.5 



73.9 



18.6 



9 



.786 



.856 



.728 



.128 



81.2 



94.5 



70.0 



24.5 



iO 



.757 



.833 



.685 



.148 



81.8 



91.6 



75.5 



16.1 



11 



.721 



.790 



.612 



.148 



82.4 



93.5 



74.5 



19.0 



12 



.722 



.780 



.668 



.112 



82.3 



91.5 



77.0 



14.5 



13 



.713 



.767 



.653 



.114 



82.7 



91.0 



77.0 



14.0 



14 



.771 



.835 



.701 



.134 



83.0 



92.7 



77.4 



15.3 



15 



.787 



.880 



.705 



.175 



82.9 



91.8 



77.5 



11.3 



16 



.781 



.814 



.733 



.111 



83.0 



90.5 



78.5 



12.0 



17 



.813 



.871 



.762 



.109 



82.7 



92.5 



76.2 



16.3 



18 



.808 



.866 



.751 



.115 



82.2 ■ 



90.3 



76.5 



13.8 



19 



.812 



.919 



.784 



.135 



82.8 



93.0 



75.7 



17.3 



20 



.850 



.933 



.772 



.161 , 



83.2 



92.5 



74.5 



18.0 



21 



.818 



.928 



.770 



.158 



81,0 



93.5 



77.0 



16.5 



22 



.831 



.921 



.731 



.190 



82.3 



92.9 



75.7 



17.2 



23 



.808 



.878 



.705 



.173 



81.5 



92.3 



73.5 



IS. 8 



21 



.809 



.875 



.738 



.137 



So. t 



91.0 



73.5 



17.5 



25 



.789 



.857 



.722 



.135 



82.3 



92.0 



75.5 



16.5 



26 



.766 



.820 



.662 



..158 



81.1 



90.5 



72.9 



17.6 



27 



.809 



.869 



.750 



.119 



81.5 



90.5 



73.0 



17.5 



28 



.836 



.922 



.731 



.188 



82.9 



92.3 



76.5 



15.8 



29 



.838 



.902 



.777 



.125 



83.3 



92.3 



76.0 



16.3 



30 



.818 



.882 



.747 



.135 



81.0 



93.2 



77.3 



15.9 



31 



.801 



.871 



.722 



.152 



84.7 



96.5 



76.0 



20.5 



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

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

 several hours during the day. 



