Ixxi 



Meteor olog tea I Observatio us. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor GeneraVs Office, Calcutta t 



in the month of September 1870. 



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

 dependent thereon. — (Continued.) 



Hour. 



• 

 pq 



3 a 



k 

 O 



■9 



p 



"o 

 PM 



P 



o 

 O 



Pry Bulb above Dew 

 Point. 



O 

 o 

 o 



a 



Mean Weight of Vapour 

 in a Cubic loot of air. 



Additional Weight of 

 Vapour required for 

 complete saturation. 



Mean degree of Humi- 

 dity, complete satura- 

 tion being unity. 













o 



o 



ruches. 



T. gr. 



T. gr. 





Mid- 



















night. 



79.0 



1.7 





2.9 



0.952 



10.25 



0.99 



0.91 



1 



79.1 



1.6 



78.3 



2.7 



.919 



.22 



.92 



.92 



2 



7D. 2 



1.6 



7s. 1 



2.7 



.913 



.16 



.91 



.92 



3 



79.2 



1.4 



78.2 



2.4 



.9 16 



.21 



.80 



.93 



4 



79.2 



1.2 



78. 1 



2.0 



.952 



.27 



.67 



.91 



5 



79. L 



1.1 



78.3 



1.9 



.1-19 



.24 



.61 



.91 



6 



79.0 



1.1 



78.2 



1.9 



.946 



.21 



.63 



.91 



7 



79.5 



1.5 



78.4 



2.6 



.952 



.25 



.89 



.92 



8 



80.2 



2.6 



78.4 



4.4 



.952 



.23 



1.52 



.87 



9 



80.6 



3.5 



78.1 



6.0 



.9 13 



.10 



2.11 



.83 



30 



80.9 



4.5 



77.7 



7.7 



.931 



9.91 



.71 



.78 



11 



81.2 



5.0 



77.7 



8.5 



.931 



.92 



3.07 



.76 



TToon. 



81.1 



5.8 



77.G 



9.3 



.928 



.89 



.3G 



.75 



1 



81.0 



G.l 



77.3 



9.8 



.919 



.78 



.55 



.73 



2 



80.8 



6.1 



77.1 



9.8 



.913 



.72 



.53 



.73 



3 



80.5 



5.4 



76.7 



9.2 



.902 



.62 



.25 



.75 



4 



80.3 



5.2 



7G.7 



8.8 



.902 



.62 



.10 



.76 



5 



80.3 



4.7 



77.0 



8.0 



.910 



.73 



2.80 



.78 



6 



80.0 



3.7 



77.1 



G.3 



.922 



.89 



.18 



.82 



7 



80.1 



2.9 



78.1 



4.9 



.913 



10.12 



1.70 



.86 



8 



80.0 



2.7 



78.1 



4.G 



.913 



.12 



.60 



.86 



9 



80.0 



2.3 



78,1 



3.9 



.952 



.23 



.35 



.88 



10 



79.9 



2.0 



78.5 



3.1 



.955 



.29 



.15 



.90 



11 



79.7 



1.9 



78.4 



3.2 



.952 



.25 



.09 



.90 



All the Hygrometrical elements are computed by the Greenwich Constants. 



