Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of January, 1866. 



Latitude 22° 23' 1" North. Longitude 88° 20' 34" East. 



Height of the Cistern of the Standard Barometer above the Sea-level, 18 ft. 11 in. 



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

 dependent thereon. 





O Ol 



-1-3 



Eange < 



?f the Barometer 



rn 



Range of the Tempera- 



Date. 





during the day. 





ture during the day. 



Mfgfc 









Q g 











8 ^ ■£ 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





<£ -P <3 









0) c_| 











£ 









S 











Inches. 



Inches. 



Inches. 



Inches. 



o 



o 



o 



o 



1 



30.056 



30.147 



30.006 



0.141 



68.3 



76.4 



61.0 



15.4 



2 



.045 



.134 



29.993 



.141 



68.0 



77.8 



60.4 



17.4 



3 



.029 



.113 



.987 



.126 



69.1 



79.4 



60.2 



19.2 



4 



.001 



.082 



.930 



.152 



72.0 



82.8 



62.8 



20.0 



5 



29.961 



.061 



.886 



.175 



73.4 



83.6 



65.8 



17.8 



6 



.906 



29.971 



.848 



.123 



73.1 



81.2 



66.4 



14.8 



7 



30.007 



30.073 



.948 



.125 



68.4 



73.8 



64.6 



9.2 



8 



.113 



.221 



30.057 



.164 



64.0 



73.0 



55.8 



17.2 



9 



.119 



.219 



.064 



.155 



63.4 



72.9 



56.0 



16.9 



10 



.068 



.158 



.004 



.154 



65.2 



75.5 



57.6 



17.9 



11 



.042 



.112 



29.992 



.120 



66.9 



77.0 



58.6 



18.4 



12 



.068 



.158 



30.003 



.155 



66.1 



76.6 



57.0 



19.6 



13 



.060 



.140 



.015 



.125 



65.5 



76.8 



56.0 



20.8 



14 



.060 



.133 



29.995 



.138 



67.8 



79.0 



58.0 



21.0 



15 



.082 



.183 



30.019 



.164 



68.8 



78.6 



60.0 



18.6 



16 



.036 



.123 



29.969 



.154 



67.5 



77.2 



59.2 



18.0 



17 



.012 



.098 



.955 



.143 



67.1 



77.4 



58.9 



18.5 



18 



.018 



.107 



.959 



.148 



68.2 



78.7 



59.2 



19.5 



19 



29.990 



.056 



.923 



.133 



69.9 



81.4 



61.0 



20.4 



20 



30.028 



.106 



.967 



.139 



70.1 



81.2 



61.0 



20.2 



21 



.044 



.113 



.962 



.151 



71.3 



81.0 



62.6 



18.4 



22 



.080 



.161 



30.033 



.128 



73.1 



81.3 



65.0 



16.3 



23 



.096 



.165 



.029 



.136 



70.5 



79.8 



62.2 



17.6 



24 



.105 



.185 



.020 



.165 



71.6 



81.2 



62.8 



18.4 



25 



.077 



.148 



29.989 



.159 



73.1 



82.0 



64.4 



17.6 



26 



.085 



.173 



30.013 



.160 



74.5 



83.8 



66.4 



17.4 



27 



.066 



.152 



29.983 



.169 



74.0 



84.7 



67.0 



17.7 



28 



.042 



.083 



30.001 



.082 



68.3 



77.8 



63.4 



14.4 



29 



.005 



.079 



29.935 



.144 



68.6 



75.2 



63.4 



11.8 



30 



29.975 



.056 



.929 



.127 



68.2 



72.2 



63.8 



8.4 



31 



30.003 



.094 



.937 



.157 



63.4 



64.6 



62.2 



2.4 



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

 mometer Means are derived, from the hourly observations made, during the day. 



