Meteorological Observations. 



Ixvii 



Abstract of the Besults of the Hourly Meteorological Observations 

 taken at the Surveyor GeneraVs Office, Calcutta, 

 in the month of September, 1858. 



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

 dependent thereon. 





<sS . 



Range of the Barometer 





Range of the Te 



mperature 





IP 



for each hour during 



<5g 



for each hour 



during 



Hour. 



fflpq w 



the month. 





the montl 



). 



















OS -a -£ 



Max. 



Min. 



Diff. 



c J: 

 cc El 



Max. 



Min. 



Diff. 





% 









% 











Inches. 



Inches. 



Inches. 



Inches. 



















Mid- 

 night. 



29.702 



29.834 



29.540 



0.294 



82.0 



85.8 



78.6 



7.2 



1 



.689 



.821 



.543 



.278 



81.7 



85.6 



78.3 



7.3 



2 



.681 



.812 



.537 



.275 



81.4 



85.0 



78.0 



7.0 



3 



.668 



.809 



.531 



.278 



81.4 



84.8 



78.0 



6.8 



4 



.663 



.798 



.532 



.266 



81.0 



84.7 



78.1 



6.6 



5 



.679 



.810 



.537 



.273 



81.2 



84.6 



78.2 



6.4 



6 



.698 



.823 



.547 



.276 



80.9 



84.8 



78.0 



6.8 



7 



.716 



.845 



.561 



.284 



81.2 



85.4 



78.8 



6.6 



8 



.733 



.881 



.581 



.300 



83.3 



88.2 



79.2 



9.0 



9 



.742 



.892 



.588 



.304 



84.3 



S9.0 



77.0 



12.0 



10 



.745 



.890 



.581 



.309 



85.5 



91.0 



79.0 



12.0 



11 



.734 



.871 



.577 



.294 



86.7 



91.5 



79.4 



12.1 



Noon. 



.714 



.855 



.555 



.300 



87.7 



92.8 



80.2 



12.6 



1 



.686 



.833 



.524 



.309 



88.1 



93.4 



81.4 



12.0 



2 



.658 



.789 



.487 



.302 



88.1 



94.2 



81.0 



13.2 



3 



.636 



.775 



.456 



.319 



87.7 



95.0 



81.4 



13.6 



4 



.626 



.768 



.452 



.316 



86.7 



95.0 



79.8 



15.2 



5 



.629 



.769 



.440 



.329 



85.6 



93.6 



79.2 



14.4 



6 



•640 



.779 



.452 



.327 



84.4 



92.0 



79.0 



13.0 



7 



.662 



.811 



.468 



.343 



83.5 



91.0 



79.8 



11.2 



8 



.686 



.843 



.505 



.338 



83.3 



90.0 



79.6 



10.4 



9 



.709 



.861 



.524 



.337 



82.8 



89.2 



79.4 



9.8 



10 



.721 



.861 



.559 



.302 



82.5 



87.0 



79.2 



7.8 



11 



.720 



.852 



.551 



.301 



82.3 



86.4 



79.0 



7.4 



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

 Thermometers arc derived from tho observations made at the several hours 

 during the month. 



