Meteorological Observations. 



xxvi L 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of April 1869. 



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

 dependent thereon. 





O «3 



.Range 



of the Barometer 



m-8 



Eange o 



i the Tempera - 







for each hour during 



ture for each hour 





>-? -+3 += 



bC <d ,-d 



1 



^he month. 





during 



the month. 



Hour. 

















Sm^ 



Max. 



Min. 



Diff. 



gl 



Max. 



Min. 



Diff. 





l5 <D 









^ 











Inches. 



Indies. 



Indies. 



Inches. 







o 



! • 



Q 



Mid- 



















night. 



29.764 



29.900 



29.664 



0.236 



82.4 



84.2 



77.0 



7.2 



1 



.753 



.890 



.653 



.237 



81.8 



84.0 



76.0 



80 



o 



.743 



.883 



.646 



.237 



81.3 



83.6 



75.5 



8.1 



3 



.734 



.871 



.640 



.231 



80.9 



83.6 



75.0 



8.6 



4 



.934 



.874 



.639 



.235 



80.5 



83.5 



75.6 



7.9 



5 



.749 



.889 



.656 



.233 



80.3 



83.5 



75.6 



7.9 



6 



.769 



.904 



.681 



.223 



80.2 



84.0 



76.6 



7.4 



7 



.793 



.932 



.697 



.235 



81.1 



84.5 



77.5 



7.0 



8 



.814 



.950 



.717 



.233 



83.4 



86.6 



79.5 



7.1 



9 



.827 



.968 



.726 



.242 



86.0 



88.5 



79.0 



9.5 



10 



.828 



.967 



.734 



.233 



88.5 



91.0 



82.0 



9.0 



11 



.819 



.958 



.721 



.237 



90.9 



93.6 



85.4 



8.2 



Noon. 



.797 



.932 



.704 



.228 



92.5 



95.8 



88.2 



7.6 



1 



.768 



.910 



.669 



.241 



93.8 



97.7 



90.4 



7.3 



2 



.737 



.872 



.645 



.227 



94.6 



99.4 



91.0 



8.4 



3 



.709 



.857 



.617 



.240 



94.8 



99.5 



90.4 



9.1 



4 



.693 



.842 



.592 



.250 



94.2 



99.5 



88.8 



10.7 



5 



.686 



.839 



.530 



.309 



92.7 



99.0 



86.7 



12.3 



6 



.691 



.821 



.534 



.287 



90.3 



97.4 



85.5 



11.9 



7 



.713 



.830 



.588 



.242 



87.6 



92.5 



84.4 



8.1 



8 



.734 



.837 



.620 



.217 



86.0 



91.0 



83.7 



7.3 



9 



.755 



.862 



.631 



.231 



84.8 



88.5 



82.7 



5.8 



10 



.770 



.871 



.645 



.226 



83.7 



87.0 



79.0 



8.0 



11 



.768 



.864 



.645 



.219 



83.1 



85.6 



76.5 



9.1 



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

 Thermometer Means are derived from the observations made at the several 

 hours during the month. 



