206 



PROCEEDINGS OF THE AMERICAN ACADEMY. 



and A, etc., with the corresponding emf. of A, and thence have de- 

 duced the exponential equations for each of the alloys. Table V. 

 gives the percentage deviations of these alloys from the exponential 

 equation (data — equation), and Table IV. shows the values of m, n, 

 and yS for those equations. 



TABLE V. 



HOLBORN AND WiEN. — COMPARISON OF AlLOTS. 



Chassngny and Ahraham Data* — The apparently very careful 

 measurements of these observers cover a range of 0° to 100° C. with 



* Chassagny et Abraham. Ann. de Chitn. et de Phjs., XXVII. 355 (1892). 



