Meteorolog lea I Obser va lions 



lxxii 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of September 1875. 



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



dependent thereon. 





o « 



.Range 



3f the Barometer 



pQ 



Range of the Tempera- 





13 <0 • 



^ ^ 13 



for each hour during 

 the month. 



ft! 



J? ° 



ture for each hour 

 during the month. 



Hour. 



















Max. 



Min. 



Diff. 





Max. 



Min. 



Diff. 





Mj 









S H 











Inches. 



Inches. 



Inches. 



Inches. 











o 



o 



Mid- 



















night. 

 1 



29.723 



29.855 



29.513 



0.342 



81.0 



83.5 



78.0 



5.5 



.712 



.849 



.494 



.355 



80.8 



83.0 



78.2 



4.8 



2 



.700 



.836 



.479 



.357 



80.5 



82.8 



78.2 



4.6 



3 



.688 



.829 



.467 



.362 



80.3 



82.4 



■ 77.8 



4.6 



4 



.682 



.822 



.461 



.361 



80.1 



82.0 



78.0 



4.0 



5 



.694 



.837 



.469 



.368 



80.0 



82.0 



78.0 



40 



6 



.709 



.851 



.479 



.372 



80.0 



81.8 



78.0 



3.8 



7 



.727 



.876 



.501 



.375 



80.6 



82.5 



78.7 



3.8 



8 



.745 



.895 



.517 



.378 



82.2 



84.0 



77.9 



6.1 



9 



.756 



.915 



.534 



.381 



83.7 



86.3 



77.8 



8.5 



10 



.754 



.904 



.535 



.369 



85.0 



88.5 



78.0 



10.5 



11 



.745 



.892 



.525 



.367 



85.5 



90.0 



78.5 



11.5 



Noon. 



.723 



.861 



.519 



.315 



86.2" 



89.6 



78.5 



11.1 



1 



.698 



836 



.493 



.343 



86.2 



91.7 



78.8 



12.9 



2 



.670 



£21 



.473 



.348 



86.6 



90.5 



78.5 



12.0 



3 



.650 



802 



.457 



.345 



86.5 



9C.8 



78.5 



12.3 



4 



.646 



"811 



.462 



.319 



85.8 



90.5 



78.7 



11.8 



5 



.645 



811 



.469 



.342 



81.4 



89.6 



79.0 



10.6 



6 



.657 



'803 



.480 



.323 



83.4 



87.5 



78.9 



8.6 



7 



.676 



817 



.506 



.311 



82.6 



86.0 



78.2 



7.8 



8 



.702 



.844 



.531 



.313 



82.2 



85.0 



7S.5 



6.5 



9 



.724 



856 



.545 



.311 



81.8 



84.3 



78.0 



6.3 



10 



.733 



874 



.532 



.342 



81.6 



84.0 



78.1 



5.9 



11 



.730 



862 



.525 



.337 



81.2 



835 



78.0 



5.5 



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

 Thermometer Means are derived from the observations made at the several 

 hours during the month. 



