Meteorological Observations. xxxy 



Abstract of tie Results of the Hourly Meteorological Observations 



taken at the Surveyor General' s Office, Calcutta, 



in the month of May, 1864. 



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

 dependent thereon. 





O | j 



Range of the Barometer 



9 B 



Rang 



e of the Temperature 





3 aif 



for each hour ( 



uring 



PQ g 



for 



each hour 



during 



Hour. 



32 & ^ 



a3 +2 & 



the month 



. 



bo 



S £. 



03 C~» 





the monti 



i. 





Max. 



Min. 



Diff. 



Max. 



Min. 



Diff. 







s 









a 











Inches. 



Inches. 



Indies. 



Inches. 











o 



o 



Mid- 

 night. 



29.733 



29.862 



29.572 



290 



80.0 



85.2 



73.8 



11.4 



1 



.719 



.828 



.553 



.275 



79.9 



84.6 



74.0 



10.6 



2 



.715 



.841 



.541 



.300 



79.5 



84.4 



74.6 



9.8 



3 



.708 



.853 



.546 



.307 



79.4 



84.0 



75.0 



9.0 



4 



.699 



.857 



.549 



.308 



79.5 



83.8 



74.0 



9.8 



5 



.728 



.872 



.550 



.322 



78.9 



83.6 



74.0 



9.6 



6 



.744 



.893 



.579 



.314 



79.2 



84.0 



74.0 



10.0 



7 



.762 



.915 



.593 



.322 



80.4 



85.2 



75.2 



10.0 



8 



.778 



.930 



.604 



.326 



83.3 



86.8 



77.8 



9.0 



9 



.793 



.937 



.636 



.301 



85.7 



89.4 



79.3 



10.1 



10 



.795 



.947 



.645 



.302 



88.4 



93.2 



79.8 



13.4 



11 



.782 



.939 



.629 



.310 



90.5 



97.4 



77.6 



19.8 



Noon. 



.765 



.917 



.611 



.306 



92.a 



99.4 



76.4 



23.0 



1 



.741 



.877 



.586 



.291 



92.8 



101.9 



76.0 



25.9 



2 



.711 



.837 



.562 



.275 



92,8 



102.9 



75.6 



27.3; 



3 



.682 



.809 



.531 



.278 



92.6 



104.0 



75.2 



28.8 



4 



.665 



.832 



.506 



.326 



91.1 



104.2 



74.8 



29.4 



5 



.664 



.848 



.500 



.348 



88.2 



101.6 



74.6 



27.0 



6 



.675 



.842 



.501 



.341 



85.7 



95.4 



74.6 



20.8 



7 



.694 



.852 



.524 



.328 



83.7 



91.2 



74.6 



16.6 



8 



.714 



.869 



.545 



.324 



82.0 



88.4 



73.0 



15.4 



9 



.730 



.883 



.555 



.328 



81.3 



87.2 



73.2 



14.0 



10 



.746 



.892 



.571 



.321 



80.7 



86.4 



73.8 



12.6 



11 



.738 



.887 



.582 



1 



.305 



80.5* 



86.0 



73.6 



12.4 



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 houri 

 during the month. 



