Meteorological Observations. 



distract of the Results of the Hourly Meteorological Observations 

 taken at the Surveyor General* s Office, Calcutta, 



in the month of April , 1864. 



Latitude 22° 33' 1" North. Longitude 83° 20' 34" East. 



Height of the Cistern of the Standard Barometer above the Sea-level, 18.11 



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



dependent thereon. 





o S3 









"° u 









4-» <D .-U 



Range < 



}f the Barometer 



9 » 



Range of the Tempera* 





dm 



ing the d 



iy. 



ture dm 



•ing the day. 



Date. 



CD ■+= 03 









& s 







Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 







a 









H 









Inches. 



Inches. 



Inches. 



Indies. 



O 



o 



o 



o 



1 



29.829 



29.896 



29.764 



0.132 



81.7 



92.2 



74.6 



17.6 



2 



.873 



.939 



.819 



.120 



84.5 



94.0 



78.0 



16.0 



3 



Sunday. 

















4 



.822 



.894 



.751 



.143 



86.0. 



97.8 



77.4 



20.4 



5 



.801 



.866 



.724 



.142 



86.2 



97.4 



76.5 



20.9 



6 



.751 



.832 



.667 



.165 



86.4 



97.6 



78.6 



19.0 



7 



.702 



.767 



.624 



.143 



87.1 



98.8 



77.2 



21.6 





.717 



.822 



.623 



.199 



83.7 



92.2 



74,2 



18.0 



9 



.739 



.800 



,680 



.120 



81.4 



93.2 



72.8 



20.4 



10 



Sunday. 

















11 



.780 



.845 



.721 



.124 



85.7 



96.4 



77.5 



18.9 



12 



.758 



.845 



.678 



.167 



87.1 



99.8 



78.0 



21.8 



13 



.692 



.780 



.610 



.170 



88.5 



101.2 



78.6 



22.6 



14 



.682 



.735 



.606 



.129 



84.8 



96.8 



77.6 



19.2 



15 



.748 



.890 



.648 



.242 



80.1 



88.4- 



75.6 



12.8 



\l 



.774 



.855 



.713 



.142 



82.4 



92.8 



73.8 



19.0 



17 



Sunday. 

















18 



.749 



.821 



.671 



.150 



86.8 



97.8 



79.4 



18.4 



19 



.704 



.782 



.635 



.147 



86.6 



96.5 



78.0 



18.5 



20 



.708 



.805 



.638 



.167 



85.0 



93.6 



77.9 



15.7 



21 



.731 



.814 



'.659 



.155 



84.3 



93.3 



78.0 



15.3 



22 



.769 



.830 



.716 



.114 



85.1 



94.8 



80.0 



14.8 



23 



.804 



.867 



.748 



.119 



85.2 



94.7 



79.4 



15.3 



24 



Sunday. 

















25 



.685 



.764 



.601 



.163 



87.7 



98.6 



80.2 



18.4 



26 



.637 



.731 



.578 



.153 



90.5 



103.6 



80.2 



23.4 



27 



.633 



.708 



.555 



.153 



89.3 



101.6 



81.0 1 20.fi 



28 



.674 



.739 



.605 



.134 



87.6 



98.0 



80.0 



I 18.0 



29 



.739 



.813 



.650 



.163 



86.5 



94.8 



78.2 



16.6 



30 



.783 

 i 



.844 



.711 



.133 



83.9 



94.8 



74.2 



20.6 



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. 



