170 



Table 158. 



BAROMETRIC 



Barometric pressures corresponding to different 

 This table is useful when a boiling-point apparatus is used 



(a) Common Measure.* 



* Pressures in inches of mercury 

 The values at the lower temperatures are perhaps J% too low. Table (b) is based on more recent data (1913). 

 Smithsonian Tables. 



