Tables 243, 244. 



237 



CORRECTION FOR TEMPERATURE OF MERCURY IN THERMOMETER 



STEM {continued). 



TABLE 243. — Stem Correction for Thermometer of Jena Qlass (0°-360° 0). 



Degree length i to 1.6 mm.; /=the observed temperature; ^= that of the surrounding air 

 one dm. away ; ?i = the length of the exposed thread. 



* See Hovestadt's " Jena Glass" (translated by J. D. and A. Everett) for data on changes of thermometer zeros. 



TABLE 244. — Stem Correction for a so-called Normal Thermometer of Jena Qlass (0°-100° C). 

 Divided into tenth degrees ; degree length about 4 mm. 



Smithsonian Tables. 



