Meteorological Observations. 



xxvn 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of April, 1865. 



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

 dependent thereon. 





o j*? . 



Ransre 



of the Barometer 



a 2 



Rang 



e of the Temperature 





j= 2 ~ 



for each hour i 



uiing 



C3 v 



for 



each hour 



luring 





.S? F (£< 





tiie montl 



. 



.^o 





the month 



. 



Hour. 



b!& 









c ! 

























5 ~S a 



Max. 



Min. 



Diff. 





Max. 



Miu. 



DifF. 





Inches. 









S 











Inches. 



Inches. 



Inches. 











o 







Mid- 

 night. 



29.806 



29.904 



29.700 



0.204 



80.3 



83.4 



73.6 



9.8 



1 



.793 



.899 



.686 



.213 



79.9 



83.0 



73.8 



9.2 



2 



.780 



.884 



.673 



.211 



79.5 



82.6 



74.0 



8.6 



3 



.770 



.878 



.642 



.236 



79 2 



82 6 



73.8 



8.S 



4 



.771 



.875 



.646 



.229 



79.1 



82.8 



72.8 



10.0 



5 



.790 



.898 



.651 



.247 



78.5 



82.6 



72.8 



9.8 



6 



.804 



.913 



.652 



.261 



78.5 



82.4 



72.4 



10.0 



7 



.826 



.930 



.659 



.271 



79.6 



84.0 



72.6 



11.4 



8 



.848 



.962 



.675 



.287 



82.2 



85.4 



76.0 



9.4 



9 



.863 



.974 



.697 



.277 



85.2 



87.8 



79.4 



8.4 



10 



.864 



.985 



.686 



.299 



87.6 



89.6 



82.0 



7.6 



11 



.854 



.971 



.673 



.298 



89.7 



92.7 



84.0 



8.7 



Noon. 



.830 



.953 



.651 



.302 



91.2 



94.6 



85.7 



8.9 



1 



.799 



.936 



.623 



.313 



92.3 



97.0 



86.4 



10.6 



2 



.769 



.917 



.598 



.319 



92.8 



97.4 



88.4 



9.0 



3 



.744 



.883 



.558 



.325 



92.6 



98.2 



84.0 



14.2 



4 



.729 



.855 



.543 



.312 



91.0 



97.8 



75.0 



22.8 



5 



.725 



.836 



.526 



.310 



89.6 



96.2 



73.8 



22.4 



6 



.740 



.843 



.539 



.304 



86.6 j 



93.4 



73.6 



19.8 



7 



.763 



.900 



.599 



.301 



84.2 



90.8 



72.8 



18.0 



8 



.784 



.927 



.647 



.280 



82.9 



86. S 



73.8 



13.0 



9 



.8l>5 



.931 



.694 



.237 



81.7 



85.0 



73.8 



11.2 



10 



.815 



.906 



.648 



.258 



81.4 



84.4 



73.6 



10.S 



11 



.811 



.919 



.648 



.271 



80.5 



84.4 



73.4 



11.0 



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

 mometer Means are derived from the Observations made at the several hours 

 daring the month. 



