244 



Tables 266-269. 



THERMOMETERS. 



TABLE 266. — Qas and Mercury Thermometers. 



If ^H, ^N, ^co2» ^6, '69. ^T, are temperatures measured with the hydrogen, nitrogen, carbonic acid, 

 iS"', 59'", and " verre dur " (Tonnelot), respectively, then 

 (100 — t)l 

 tB. — h = — j^^2 — [— 0.61859 + 0.0047351./ — o.ooooi 1 577-^'^]* 



ts — h= ^°°^ [—0.55541 + 0.0048240./ — 0.000024807 ./2j* 



/002 — h = ''°°~ ) . [ — 0.33386 + 0.0039910./ — 0.000016678./2]* 

 100'^ 



'h — /i6= <'°°~/^^ [—0.67039 + 0.0047351./ — O.OOOOI 1 577./2]t 



/a — /69= (IQO— ^)^ [—0.31089 + 0.0047351./ — O.OOOOI I 577./2]t 

 lOO'' 



* Chappuis ; Trav. et M^m. du Bur. internal, des Poids et Mes. 6, 1888. 



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

 Ztg. 1897. 



TABLE 267. tH-t.e (Hydrogen- Ism). 



TABLE 268. Xa — Xm (Hydrogen- 59"')- 



TABLE 269. (Hydroge.n - 16'"), (Hydrogen — 59'"). 



All compiled from Landolt-B6rnstein-Me yerhoffer's Physikalisch-cheraische Tabellen. 

 Smithsonian Tables. 



