REDUCTION OF BAROMETER READINGS TO 

 STANDARD UNITS 



Reduction of the barometer to standard temperature — 



English measures Table 44 



Metric measures Table 45 



Reduction of the mercurial column to standard temperature. 

 (For U-sha])ed manometers with 1)rass scales.) 



English measures Table 46 



Metric measures Table 47 



Reduction of the mercurial barometer to standard gravity. 



Direct reduction from local to standard gravity .... Table 48 



Reduction through variation with latitude — 



English measures Table 49 



Metric measures Table 50 



