Meteorologica I Observa tions. 



Ixvii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of September 1867. 



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

 dependent thereon. 





O «3 



.Range of the Barometer 



.£ 



Range of the Tempera- 





"5 & • 



for each hour during 



W-2 



ture for each hour 





T* -4^ -t- 1 



s o 



the month 





8 



during the month. 



Hour. 









s? © 



A B 











:dPH CO 

 4) -^ 



Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





. , © 

 ^3 









s H 











Inches. 



Inches. 



Inches. 



Inches. 



o 















Mid- 



















night. 



29.658 



29.792 



29.450 



0.342 



81.5 



84.5 



77.0 



7.5 



1 



.646 



.779 



.432 



.347 



81.3 



84.2 



77.0 



7.2 



2 



.635 



.773 



.411 



.362 



81.0 



84.0 



76.5 



7.5 



3 



.625 



.764 



.394 



.370 



80.7 



83.8 



76.5 



7.3 



4 



.622 



.769 



.374 



.395 



80.5 



83.4 



76.4 



7.0 



5 



.631 



.774 



.392 



.382 



80.4 



84.2 



76.4 



7.8 



6 



.648 



.787 



.412 



.375 



80.4 



84.0 



76.0 



8.0 



7 



.664 



.800 



.413 



.357 



81.0 



84.5 



76.0 



8.5 



8 



.685 



.836 



.477 



.359 



82.3 



85.7 



76.8 



8.9 



9 



.700 



.845 



.491 



.354 



84.1 



87.7 



78.4 



9.3 



10 



.701 



.846 



.474 



.372 



85.0 



89.3 



79.0 



10.3 



11 



.689- 



.848 



.450 



.398 



85.6 



90.0 



78.5 



11.5 



Noon. 



.666 



.813 



.395 



.418 



86.5 



91.5 



78.0 



13.5 



1 



.642 



.811 



.398 



.413 



86.8 



92.2 



78.0 



14.2 



2 



.618 



.797 



.376 



.421 



86.7 



92.5 



77.4 



15.1 



3 



.598 



.777 



.362 



.415 



85.9 



92.5 



78.5 



14.0 



4 



.590 



.773 



.343 



.430 



85.7 



92.2 



78.5 



13.7 



5 



.592 



.773 



.354 



.419 



85.0 



92.0 



78.7 



13.3 



6 



.608 



.787 



.378 



.409 



83.7 



89.0 



79.0 



10.0 



7 



.627 



.800 



.398 



.408 



83.1 



88.0 



79.0 



9.0 



8 



.650 



.811 



.408 



.403 



82.6 



86.2 



79.0 



7.2 



9 



.668 



.821 



.414 



.407 



82.2 



86.0 



78.0 



8.0 



10 



.678 



.833 



.420 



.413 



82.0 



85.8 



77.5 



8.3 



11 



.674 



.827 



.432 



.395 



81.6 



85.4 



76.4 



9.0 



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. 



