Table 41. 

 REDUCTION OF PSYCH ROMETRIC OBSERVATIONS. 



ENGLISH MEASURES. 



Values of 0.000367 B ft 



A)(i ; 



1571/- 



^r= Barometric pressure. 

 ^^Temperature of the dry-bulb thermometer. 

 /, = Temperature of the wet-bulb thermometer. 



Smithsonian Tables. 



137 



