xu 



Meteorological Observations. 



Abstract of the Results of the Hourly Meteorological Observation* 



taken at the Surveyor General's Office, Calcutta, 



in the month of February 1S70. 



Hourly Means, &e. of the Observations and of the Hygrometrieal elements 

 dependent thereon. — (Continued.) 



Hour. 



Moan Wet Bulb Ther- 

 mometer. 



! Dry Bulb above Wet. 



Computed Dew Point. 



ove Dew 

 Point, 



Mean Elastic force of 

 \ a pour. 



Menu Weight of Vapour 



in a Cubic foot ot* air. 



Litional Weight of 



Vapour required for 

 oob uration. 



5 a 



— * 55 >^ 

 g.-£ o 





o 







o 



o 



Inches. 



T. gr. 



T. gr. 





Mid- 



















night. 



61.1 



5.3 



59.9 



9.5 



521 



5.73 



2.13 



0.73 



1 



63.8 



! 9 



59.9 



8.8 



.521 



.74 



1.95 





2 



6:5.0 



4.4 



60.1 



7:) 





.80 



.73 



.77 



3 



63.3 



4.1 



OO.o 



71 





.79 



.60 



.78 



4 



63.0 



3.8 



60.0 





.523 



.79 



.17 



.8D 



6 



62.7 



3.5 



59. 9 



6.3 



.521 



.78 



.31- 



.81 



6 



62.2 



3.5 



59. ! 



6.3 



.513 



.69 



.33 



.81 



7 



61.9 



3.5 



59.1 



6.3 



.508 



.64 



.31 



.81 



8 



63.3 



1.5 



59.7 



8.1 



.518 



.73 



.75 



.77 



9 



61.0 



7.2 





13.0 



.503 



.50 



2.95 



.65 



10 



65.7 



10.0 





17.0 



.5ol 



.45 



4.06 



.57 



- 11 



66.2 



13.1 



• 



57.0 



22.3 



.173 



.11 



5.48 



.48 



\Noon. 



66.2 



15.3 



55.5 



26.0 



.450 



4,81 



6.47 



M 



1 



66.5 



16.8 



51.7 



28.6 



.438 



.69 



7.24 



.39 



2 



66.9 



17.6 



51.6 



29.9 



.437 



.67 



.68 



.38 



3 



66.8 



18.3 



54.0 



31.1 



.428 



.56 



8.01 



.3i> 



4 



66.8 



17.8 



54,3 



30.3 



.132 



.63 



7.76 



.37 



6 



67.1 



16.3 



55.7 



27.7 



.453 



.85 



.11 



.41 



tf 



67.9 



12.2 



59.4 



20.7 



.513 



5.52 



5.32 



.51 



7 



67.0 



9.7 



60.2 



16.5 



.527 



.71 



4.09 



.58 



8 



66.3 



8.2 



60.6 



13.9 



.531 



.81 



3.37 



.63 . 



9 



65.6 



7.1 



59.7 



13.3 



.518 



.67 



.09 



.65 



10 



64.8 



6.9 



59.3 



12.4 



.511 



.60 



2.83 



.66 



11 



61.6 



6.1 



59.7 



11.0 



.518 



.69 



.49 



.70 



All the Hygvometrical elements are computed by the Greenwich Constant! 



