Meteorologica I Observations, 



XXYIi 



Abstract of the Results of the Hourly Meteorological- Observation* 



taken at the Surveyor General's Office, Calcutta, 



in the month of April 1868. 



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

 dependent thereon. 



Hour 



O c3 



^ -2+S 



JRange of the Barometer 



for each hour during 



the month. 



J? o 



Range of the Tempera- 

 ture for each hour 

 during theononth. 

















3M& 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





Inches. 



Inches. 



Inches. 



Inches. 











o 







Mid- 



















night. 



29.786 



29.926 



29.613 



0.283 



78.7 



84.0 



67.5 



16.5 



1 



.775 



.915 



.636 



.279 



78.2 



83.5 



67.6 



15.9 



2 

 3 



.764 



.904 



.619 



.285 



77.8 



83.0 



68.0 



15.0 



.756 



.902 



.615 



.287 



77.6 



82.7 



68.2 



14.5 



4 



.753 



.922 



.606 



.316 



77.4 



82.5 



68.5 



14.0 



5 



.768 



.929 



.6)3 



.316 



77.3 



83.0 



67.8 



15.2 



6 



.781 



.940 



.627 



.313 



77.4 



83.0 



67.6 



15.4 



7 



.804 



.968 



.645 



.323 



78.4 



83.5 



68.5 



15.0 



8 



.826 



.992 



.668 



.324 



81.1 



86.0 



70.5 



15.5 



9 



.837 



30.014 



.685 



.329 



84.0 



88.5 



74.0 



14^5 



10 



.838 



.016 



.689 



.327 



86:5 



90.8 



76.7 



14.1 



11 



.827 



.002 



.682 



.320 



88.5 



9.3.2 



78.5 



14,7 



Noon. 



.809 



29.967 



.667 



.300 



90.0 



95.5 



78.5 



17.0 



1 



.784 



.951 



.640 



.311 



90.4 



97.5 



68.9 



28.6 



2 



3 



.752 



.919 



.620 



.299 



91.0 



98.5 



68.7 



29.8 



.724 



.925 



.584 



.341 



91.2 



98.4 



70.5 



27.9 



4 

 5 



.708 



.908 



.569 



.339 



90.4 



98.0 



63.0 



30.0 



.705 



.932 



.571 



.361 



88.3 



97.5 



68.0 



29,5 



6 



.722 



.913 



.576 



.337 



85.9 



95.2 



68.5 



26.7 



7 



.742 



.921 



.608 



.313 



83.7 



91.5 



67.9 



23.6 



8 



.762 



.942 



.633 



.309 



81.8 



88.8 



68.0 



20.8 



& 



.782 



.94.8 



.639 



.309 



80.5 



86.0 



68.2 



17,8 



K) 



.789 



.950 



.em 



.285 



79.6 



85.0 



68.0 



17.0 



11 



.790 



.939 



i 



.671 



.268 



79.1 



84.5 



67.5 



17.0 



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

 inermometer Means are derived from the observations made at the several 

 nours during the month. 



