ADAMS AND JOHNSTON: STANDARD TEMPERATURE SCALE 279 



TABLE II— Continued 

 Freezing Points of Metals 



* Couple E is of Pt— PtRh; Ci, C 2 , C 3 are of copper-constantan. 



f Bull. Bur. Standards, 7: 3-11. 1910. (Reprint No. 143.) 



| Ibid. 6: 150-230. 1910. (Reprint No. 124). 



If The values given in the last column have been reduced from those in the column 

 to the left by means of the differences between the scales as determined in a way 

 to be described later (p. 280); i.e., these values are on the basis that the b. p. of 

 sulfur is 444?56. 



§ Mean of two or more determinations often separated by a month or so in time. 

 The maximum deviation from the mean in any of these cases was 0?03. 



ft Melting point. 



Comparison of the series of resistance thermometer measurements 

 (Waidner and Burgess) with gas thermometer determinations (Day 

 and Sosman) at the same fixed points. For a fair comparison it 

 is essential that the results be expressed in the same scale of tem- 

 peratures; for this we have adopted the thermodynamic scale. 

 We have accordingly applied the appropriate corrections, taking 



