DAY AND SOSMAN: NITROGEN THERMOMETER SCALE 



175 



Inasmuch as these various determinations were made under 

 somewhat different gas conditions, the results are not directly 

 comparable without reduction to some common unit. The fair- 

 est comparison is afforded by reduction to the thermodynamic 

 scale. 



6. SUMMARY 



' The new gas thermometer temperatures which this investi- 

 gation has given us are brought together in Table IV, expressed 

 (column 2) in terms of nitrogen expanding at constant volume 

 from an initial pressure of 760 mm., and (column 3) in terms of 

 the thermodynamic scale. These values replace the correspond- 

 ing temperatures published in our papers to which reference has 

 been made. 



TABLE IV 



Summarized Table 



POINT 



Benzophenone (Kahl- 

 baum) boiling point at 

 760 mm 



Cadmium, melting point. 

 Zinc, melting point 



Sulfur, boiling point at 

 760 mm 



Antimony i Kahlbaum), 

 melting point 



Aluminum, melting point 



Finally, a comparative table (Table V) is added showing in 

 terms of the same (thermodynamic) scale a comparison of our 

 results with those obtained by Holborn and Henning in the latest 

 work published from the Reichsanstalt. 5 



5 Holborn and Henning. 1911. Loc. cit. 







