MEASURING OF AIR. 455 



TABLE I (b). 

 Reduction of Hygrometer Readings. 



Test No. ■ II IV V \l 



Dry Bulb °C. 

 Wet Bulb X. 

 Dry Bulb °F. {t) 

 Wet Bulb °F. (t.,) 



(t-t,) 

 Pressure of saturated 

 aqueous vajjour t-^(f.^) 

 0.000367 B it — t-i) 



^ 1571 ' '-^ 



