Table 241. 



CORRECTION FOR TEMPERATURE OF MERCURY IN THERMOMETER 



STEM.* 



r = / — 0.0000795 « {t' — i), in Fahrenheit degrees; r=/— 0.000143 « (/' — /), in Centigrade degrees. Where 

 7^= corrected temperature, ^= observed temperature, /'= mean temperature of glass stem and mercury column, 

 « =r the length of mercury in the stem in scale degrees. 



Smithsonian Tables. 



* *' Smithsonian Meteorological Tables," p. 12. 

 232 



