194 



Tables 202-204. 



GAS, MERCURY, ALCOHOL, TOLUOL, PETROLETHER, PENTANE, 



THERMOMETERS. 

 TABLE 202. — t**— tii (Hydrogen-Meronry). 



* Schlosser, Zt. Instrkde. 21, 1901. 



t Chnppuis, Trav. et mem. du Bur. Intern, des Poids et Mes. 6, i8 



TABLE 203. —Comparison of Air and High Temperature Mercury Thermometers. 



Comparison of the air thermometer with the high temperature mercury thermometer, filled under 



pressure and made of 59'" glaes. 



Mahike, VVied Ann. 1894. 



TABLE 204. — Comparlsoa of Hydrogen and Other Thermometers. 



Comparison of the hydrogen thermometer with the toluol, alcohol, petrolether, and pentane ther-i 



mometers (verre dur). 



