244 



TABLES 266-269. 

 THERMOMETERS. 



TABLE 266. Gas and Mercury Thermometers. 



If /H, ty, 4)02, '16, *59 *r> are temperatures measured with the hydrogen, nitrogen, carbonic acid, 

 i6 m , 59 UI , and " verre dur " (Tonnelot), respectively, then 



/a _/ T = IQ^ [0.61859 + 0.0047351.* O.OOOOH577./ 2 ]* 

 fc /T = (l t f) ' [ 0.55541 + 0.0048240.* 0.000024807 ./*]* 

 [-0.33386 + 0.0039910^-0.000016678.^]* 



[0.67039 + 0.0047351. / o.ooooi 1 577./2]t 



fe to = 



* Chappuis ; Trav. et Me"m. du Bur. internal, des Poids et Mes. 6, 1 

 t Thiesen, Scheel, Sell; Wiss. Abh. d. Phys. Techn. Reichanstalt, 2, 1895; Scheel; Wied. Ann. 58, 1896; D. Mech. 

 Ztg. 1897. 



TABLE 267. t H -t 16 (Hydrogen -16 ra ). 



TABLE 268. ta-tuo (Hydrogen- 5 9 111 ). 



TABLE 269. (Hydrogen - 16" 1 ), (Hydrogen - 59 1 "). 



All compiled from Landolt-Bbrnstein-Meyerhoffer's Physikalisch-chemische Tabellen. 

 SMITHSONIAN TABLES. 



