Meteorological Observations. 



IX 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of February 1869. 



Latitude 2£° 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 

 dependen t thereon. 





ght of 



meter 



Jit. 



Eange of the Barometer 

 during the day. 





Range of the Tempera- 

 ture during the day. 





£ 2^ 

 _ W <m 



O rp -I" 3 















Date. 



Max. 



Min. 



Diff. 



Max. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



o 



1 



29.877 



29.971 



29.792 



0.179 



76.2 



82.7 



71.5 



11.2 



2 



.772 



.863 



.692 



.171 



76.2 



83.0 



71.3 



11.7 



3 



.819 



.900 



.734 



.166 



73.6 



80.6 



68.4 



12.2 



4 



.954 



30.044 



.874 



.170 



70.5 



77.8 



64.5 



13.3 



5 



.998 



.090 



.932 



.158 



69.4 



77.5 



61.0 



16.5 



6 



.914 



.000 



.833 



.167 



71.5 



82.1 



61.0 



21.1 



7 



.891 



29.962 



.815 



.147 



67.0 



72.6 



63.0 



9.6 



8 



.982 



30.051 



.944 



.107 



67.0 



75.2 



59.0 



16.2 



9 



.992 



.037 



.945 



.002 



62.1 



67.0 



60.0 



7.0 



10 



.996 



.053 



.941 



.112 



61.3 



64,7 



59.2 



5.5 



11 



30.049 



.133 



30.000 



.133 



65.2 



74.5 



57.5 



17.0 



12 



.017 



.098 



29.961 



.137 



67.4 



76.2 



59.5 



16.7 



13 



29.999 



.071 



.944 



.127 



70.5 



79.5 



62.5 



17.0 



14 



30.013 



.084 



.959 



.125 



72.2 



81.6 



65.2 



16.4 



15 



29.991 



.076 



.935 



.141 



73.4 



82.2 



66.5 



15.7 



16 



.948 



.013 



.881 



.132 



75.3 



83.7 



69.0 



14.7 



17 



.983 



.060 



.914 



.146 



76.9 



85.0 



71.2 



13.8 



18 



30.033 



.126 



.984 



.142 



76.9 



84.0 



71.5 



12.5 



19 



29.972 



.065 



.886 



.179 



75.4 



84.8 



69.0 



15.8 



20 



.953 



.027 



.886 



.141 



77.7 



86.5 



71.4 



15.1 



21 



.933 



29.989 



.881 



.108 



78.6 



89.0 



71.9 



17.1 



22 



.930 



. 30.003 



.869 



.134 



79.1 



90.0 



70.0 



20.0 



23 



.918 



29.981 



.868 



.113 



79.5 



90.0 



71.5 



18.5 



24 



.969 



30.043 



.910 



.133 



80.0 



90.0 



72.0 



18.0 



25 



.994 



.081 



.933 



.148 



81.0 



91.5 



73-0 



18.5 



26 



.958 



.036 



.898 



.138 



79.7 



90.5 



72.0 



18.5 



27 



.972 



.034 



.930 



.104 



78.6 



87.4 



71.0 



16.4 



28 



.984 



.048 



.928 



.120 



76.5 



82.0 



72.5 



9.5 



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. 



