Wnteorob ><j ica I Obserra tio n ^, 



Abstract of the Results of the Hourly Meteorological Observations 



taken at the Surveyor General's Office, Calcutta, 



in the month of December 1870. 



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

 dependent thereon. — (Continued.) 



Hour. 



CO 



o 



1 



pq 



b 



p 



Computed Dew Point. 



Dry Bulb above Dew 

 Point. 



Mean Elastic force of 

 Yapour. 



Mean Weight of Yapour 

 in a Cubic foot of air. 



Additional Weight of 

 Yapour required for 

 comi3lete saturation. 



• 



Mean degree of Humi- 

 dity, complete satura- 

 tion being unity. 





O 







o 



o 



Inches. 



T. gr. 



T. gr. 





Mid- 



















night. 



59.7 



3.1 



56.9 



5.9 



0.472 



5.26 



1.15 



0.82 



1 



59.0 



3.1 



56.2 



5.9 



.461 



.15 



.12 



.82 



2 



58.5 



3.0 



55.8 



5.7 



.455 



.09 



.07 



.83 



3 



58.1 



2.8 



55.6 



5.3 



.452 



.07 



0.97 



.84 



4 



57.5 



2.8 



55.0 



5.3 



.412 



4.97 



.96 



.84 



5 



57.1 



2.7 



54.7 



5.1 



.438 



.92 



.91 



.84 



6 



56.7 



2.6 



54.4 



4.9 



.434 



.87 



.87 



.85 



7 



56.7 



2.5 



54.4 



4.8 



.434 



.87 



0.86 



.85 



8 



58.1 



3.6 



54.9 



6.8 



.441 



.93 



1.26 



.80 



9 



59.7 



5.1 



55.6 



9.2 



.452 



5.03 



.80- 



.74 



30 



61.5 



7.0 



55.9 



12.6 



.456 



.03 



2.62 



.66 



11 



62.5 



8.8 



55.5 



15.8 



.450 



4.94 



3.39 



.59 



Noon. 



62.7 



10.4 



51.4 



18.7 



.434 



.73 



4.06 



.54 



1 



63.2 



11.3 



55.3 



19.2 



.447 



.88 



.30 



.53 



2 



63.6 



11.8 



55.3 



20.1 



.447 



.87 



.56 



.53 



3 



63.4 



12.1 



51,9 



20.6 



.441 



.79 



.67 



.51 



4 



63.0 



11.2 



55.2 



19.0 



.445 



.86 



.23 



.54 



5 



63. t 



9.3 



56.0 



16.7 



.458 



5.00 



3.68 



.58 



6 



63.5 



6.3 



58.5 



11.3 



.498 



.48 



2.47 



.69 



7 



62.8 



5.0 



58.8 



9.0 



.503 



.55 



1.93 



.74 



8 



62.1 



4.4 



58.6 



7.9 



.499 



.53 



.06 



.77 



9 



61.3 



4.0 



58.1 



7.2 



.491 



.45 



.48 



.79, 



30 



60.7 



3.6 



57.5 



6.8 



.481 



.35 



.37 



.80 



1L 



60.1 



3.4 



57.0 



6.5 



.473 



.27 



.28 



,81 



All the Hygrometrical elements are computed "by the Greenwich Constanta. 



