Meteorological Observations. xcix 



Abstract of the Hesults of the Hourly Meteorological Observations 

 taken at the Surveyor General's Office, Calcutta, 

 in the month of April, 1862. 



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

 dependent thereon. 





o 1 . 



Range 



of the Barometer 



J3 C 



Rang 



3 of the Temperature 





S 3 ■% 



for ea 



ch hour C 



uring 



rn <u 



5 -=> 



for 



each hour during 



Hour. 





1 



he month 







the month 







Max. 



Min. 



Diff. 



Max. 



Min. 



Diff. 





|" *" 









3 













Inches. 



Inches. 



Indies. 



Inches. 







o 



o 



Mid- 

 night. 

 1 



29.757 



29.871 



29.589 



0.282 



79.9 



83.2 



75.0 



8.2 



.74(5 



.862 



.584 



.278 



79.3 



82.8 



71.2 



11.6 



2 



.738 



.844 



.576 



.268 



79.1 



83.0 



710 



12.0 



3 



.732 



.839 



.587 



.252 



78.5 



82.6 



71.0 



11.6 



4 



.729 



.825 



.608 



.217 



78.4 



82.0 



70.9 



11.1 



5 



!748 



.844 



.625 



.219 



78.0 



81.9 



71.2 



10.7 



6 



.767 



.872 



.636 



.236 



78.0 



81.8 



71.2 



10.6 



7 



.786 



.905 



.643 



.262 



79.0 



82.2 



73.2 



9.0 



8 



.807 



.923 



.656 



.267 



81.7 



84.4 



77.5 



6.9 



9 



.823 



.959 



.690 



.269 



85.6 



89.8 



80.6 



9.2 



10 



.820 



.954 



.667 



.287 



88.0 



91.4 



84.2 



7.2 



11 



.809 



.948 



.666 



.282 



90.1 



95.0 



86.0 



9.0 



Noon. 



.791 



.929 



.655 



.274 



91.5 



96.8 



87.0 



98 



1 



.764 



.901 



.621 



.280 



92.6 



98.6 



87.8 



10.8 



2 



.732 



.881 



.582 



.299 



93.2 



99.8 



88.2 



11.6 



3 



.705 



.853 



.568 



.285 



93.1 



100.2 



87.8 



12.4 



4 



.681 



.830 



.543 



.287 



92.4 



100.2 



85 8 



14.4 



5 



.682 



.821 



.541 



.280 



90.2 



98.4 



78.6 



19.8 



6 



.692 



.830 



.536 



.294 



87.6 



94.8 



74.0 



20.8 



7 



.713 



.844 



.563 



.281 



85.4 



91.6 



7.1.0 



20.6 



8 



.740 



.866 



.585 



.281 



83.2 



87.6 



70.7 



169 



9 



.756 



.884 



.586 



.298 



82.0 



87.3 



72.6 



14.7 



10 



.759 



.892 



.556 



.336 



81.0 



85.0 



72.5 



12.5 



11 



.757. 



.888 



.611 



.277 



80.5 



84.5 



73.0 



11.5 



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. 



