lxxxi 



Meteorolog ica I Observa tions. 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of October 1868. 



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

 dependen t thereon. — (Continued.) 



Hour. 



pq 



•+3 . 

 ® H 

 ^^ 



■+3 



> 

 o 



-a 



PQ 



b 

 p 



■+3 



.a 



"o 



Pm 



p 



o 



a 



o 

 O 



P 



> 



o 



it 



P H 



o 



© 

 o 



o 



m 







Mean Weiglit of Yapour 

 in a Cubic foot of air. 



Additional Weight of 

 Vapour required for 

 complete saturation. 



Mean degree of Humi- 

 dity, complete satura- 

 tion being unity. 





















Inches. 



T. gr. 



T.gr. 





Mid- 



















night. 



76.7 



2.9 



74.7 



4.9 



0.846 



9.14 



1.55 



0.86 



1 



76.5 



2.6 



74.7 



4.4 



.846 



.16 



.37 



.87 



2 



76.2 



2.5 



74.4 



4,3 



.838 



.08 



.33 



.87 



3 



75.9 



2.4 



74.2 



4,1 



.832 



.02 



.26 



.88 



4 



75.7 



2.2 



74.2 



3.7 



.832 



.02 



.14 



.89 



5 



75.7 



1.9 



74.4 



3.2 



.838 



.10 



0.97 



.90 



6 



75.7 



1.7 



74,5 



2.9 



.840 



.12 



.89 



.91 



7 



76.6 



1.9 



75.3 



3.2 



.862 



.34 



1.01 



.90 



8 



77.1 



3.9 



74.4 



6.6 



.838 



.02 



2.12 



.81 



9 



77.0 



6.0 



72.8 



10.2 



.795 



8.54 



3.28 



.72 



10 



77.2 



7.6 



71.9 



12.9 



.773 



.26 



4.20 



m 



11 



77.1 



8.7 



71.0 



14.8 



.751 



.00 



.83 



.62 



Koon. 



76.9 



9.6 



71.1 



15.4 



.753 



.03 



5.07 



.61 



1 



76.7 



10.3 



70.5 



16.5 



.739 



7.85 



.44 



.59 



2 



76.7 



10.7 



70.3 



17.1 



.734 



.81 



.64 



.58 



3 



76.6 



11.0 



70.0 



17.6 



.727 



.71 



.81 



.57 



4 



76.5 



10.6 



70.1 



17.0 



.729 



.76 



.57 



.58 



5 



76.8 



9.7 



71.0 



15.5 



.751 



.99 



.11 



.61 



6 



76.9 



7.3 



71.8 



12.4 



.771 



8.25 



3.99 



.67 



7 



77.3 



5.6 



73.4 



9.5 



.811 



.69 



.10 



.74 



8 



77.2 



4.7 



73.9 



8.0 



.824 



8.87 



2.57 



.78 



9 



77.0 



4.0 



74.2 



6.8 



.832 



.96 



.18 



.80 



10 



76.9 



3.4 



74.5 



5.8 



.840 



9.07 



1.84 



.83 



11 



76.7 



3.1 



74,5 



5.3 



.840 



.09 



.66 



.85 



All the Hygrometrical elements are computed by the Greenwich Constants. 



