Meteorological Observations. 



Abstract of the Besults of the Hourly Meteorological Observations 

 talcen at the Surveyor General" s Office, Calcutta, 

 in the month of April, 1859. 



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

 dependent thereon. 





o 2 . 



Range 



3f the Ba 



•ometer 



a 2 



Range of the Temperature 





S si 



for each hour d 



uring 



« S 



for 



each hour during 





W) o c2 



the month 





►.§ 





the month 





Hour. 



2 « o 









6 £ 

























d 03 M 



Max. 



Min. 



Diff. 



d - 



03 r-> 



Max. 



Min. 



Diff. 





Inches. 



Indies. 



Inches. 



Inches. 



o 



o 



o 







Mid- 

 night. 



29.821 



30.060 



29.714 



0.346 



79.9 



84.8 



73.8 



11.0 



1 



.806 



.048 



.704 



.344 



79.7 



83.8 



75.0 



8.8 



2 



.794 



.027 



.696 



.331 



79.2 



83.8 



74.8 



9.0 



3 



.786 



.009 



.689 



.320 



78.9 



82.4 



74.2 



8.2 



4 



.789 



29.992 



.700 



.292 



78.4 



81.8 



71.7 



10.1 



5 



.805 



.982 



.725 



.257 



78.0 



82.1 



69.8 



12.3 



6 



.825 



30.002 



.744 



.258 



77.8 



82.4 



68.9 



13.5 



7 



.846 



.020 



.763 



.257 



78.5 



83.0 



69.8 



13.2 



8 



.860 



.027 



.774 



.253 



81.4 



86.0 



72.5 



13.5 



9 



.877 



.054 



.758 



.296 



84.6 



88.2 



77.8 



10.4 



10 



.875 



.049 



.759 



.290 



87.3 



92.2 



80.8 



11.4 



11 



.865 



.037 



.757 



.280 



89.4 



93.2 



81.6 



11.6 



Noon. 



.844 



.018 



.732 



.286 



91,5 



95.6 



85.2 



10.4 



1 



.816 



29.981 



.724 



.257 



92.3 



96.0 



83.8 



12.2 



2 



.787 



.943 



.701 



.242 



93.0 



98.0 



82.8 



15.2 



3 



.759 



.921 



.678 



.243 



93.0 



97.8 



85.4 



12.4 



4 



.737 



.909 



.647 



.262 



92.4 



97.2 



87.0 



10.2 



5 



.737 



.907 



.632 



.275 



90.5 



95.4 



81.0 



14.4 



6 



.747 



.902 



.641 



.261 



87.9 



93.9 



77.0 



16.9 



7 



.766 



.936 



.663 



.273 



85.1 



90.8 



75.8 



15.0 



8 



.791 



.962 



.682 



.280 



83.7 



89.2 



74.6 



14.6 



9 



.823 



.987 



.698 



.289 



82.4 



87.2 



74.8 



12.4 



10 



.830 



30.000 



.719 



.281 



81.4 



86.0 



74.8 



11.2 



11 



.826 



29.979 



.726 



.253 



80.8 



85.2 



75.0 



10.2 



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

 Thermometers are derived from the observations made at the several hours 

 during the month. 



