MEASURING OF AIR. 



437 



Pressure of saturated 

 0.000367 B (t — t^) { 

 Vapour pressure (/^ - 

 Pressure of saturated vapour 

 Relative Humidity. 



Dry Bulb°F. = 69.4 = ^ 



Wet Bulb°F. = 44-4 = ^ 



^ — fi = 25.0 



aqueous vapour ( f ^ ) = 0.292 = /^ 



1 + it-t,) / 1571) = 0.233 = /2 



- f.,) = 0.059 = / 



t) = 0.717 = F 



= 8.2% =fF 



TABLE I (e) 



Test 

 No. 



Time Barom. 

 p.m. Inches. 



r of Drv Wet 



Bar. Bulb Buld 



F. ''C. "C. 



V 



