xxvm 



Me tea ro loij ica I Observa fio n $ . 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor QeneraV* Office, Calcutta, 



in the month of April 18 09. 



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

 dependen t thereon . — (Continued.) 



Hour. 



6 



g § 



CO 



& 



rO 



pq 



b 



p 



P 

 nd 



o 



s 



o 



o 



p 



> 

 o 



■a 



r— I 



P M 



o 



o 

 o 



ST 



p- o 



o o 



-^ .c 



_ — —I 



be K> 



M 



d H 



Additional Weight of 

 Vapour required for 

 complete saturation. 



Mean degree of Humi- 

 dity, complete satura- 

 tion being unity. 





o 







o 







Inches. 



T. gr. 



T. gr. 





Mid- 



















night. 



78.5 



3.9 



75.8 



6.6 



0.S76 



9.41 



2.20 



0.81 



1 



78.2 



3.6 



75.7 



6.1 



.873 



.40 



.00 



.83 



2 



78.0 



3.3 



75.7 



5.6 



.873 





1.84. 



.84 



3 



77.9 



3.0 



75.8 



5.1 



.876 



.44 



.66 



.85 



4 



77.8 



2.7 



75.9 



4.6 





.47 



.51 



.86 



5 



77.6 



2.7 



7-*i.7 



4,6 



.873 



.41 



.50 



.86 



6 



77.6 



2.6 



75.8 



4.4 



.876 



.46 



.12 



.87 



7 



77.9 



3.2 



75.7 



5.4 



.873 



.41 



.76 



.84 



8 



78.4 



5.0 



74.9 



8.5 



.851 



.11 



2.85 



.76 



9 



78.8 



7.2 



73.8 



12.2 



.822 



8.76 



4.15 



.68 



10 



78.9 



9.6 



73.1 



15.4 



.803 



.53 



5.35 



.62 



11 



78.8 



12.1 



71.5 



19.4 



.763 



.06 



6.83 



.54 



Noon. 



78.8 



13.7 



70.6 



21.9 



.741 



7.79 



7.80 



.50 



1 



78.9 



14.9 



70.0 



23.8 



.727 



.62 



8.56 



.47 



2 



79.0 



15.6 



69.6 



25.0 



.717 



.51 



9.00 



.46 



3 



78.8 



16.0 



69.2 



25.6 



.7<)8 



.41 



.21 



.45 



4 



78.8 



15.4 



69.6 



24.6 



.717 



.51 



8.85 



.46 



5 



78.6 



14.1 



70.1 



22.6 



.729 



.66 



.02 



.49 



6 



78.7 



11.6 



71.7 



18.6 



.768 



8.11 



6.52 



.55 



7 



78.6 



9.0 



73.2 



14.4 



.806 



.57 



4.95 



.63 



8 



78.5 



7.5 



732 



12.8 



.806 



.59 



.32 



.67 



9 



78.6 



6.2 



74.3 



10.5 



.835 



.92 



3.51 



.72 



10 



78.4 



5.3 



74.7 



9.0 



.816 



9.06 



.01 



.75 



11 



78.6 



4.5 



75.4 



7.7 



.865 



.28 



2.58 



.78 



All the Hygrometrical elements are computed by the Greenwich Constants. 



