TABLE 283. 



ELECTROCHEMICAL EQUIVALENTS AND INTERNATIONAL ATOMIC WEIGHTS. 



With the exception of the value given for silver and that corresponding to valence 2 for copper, the electrochemical 

 equivalents given in this table have been calculated from the atomic weights and one or two of the more com- 

 mon apparent valences of the substance. The value given for silver is that which was adopted by the Inter- 

 national Congress of Electricians at Chicago in 1894. The number for silver is made the basis of the table ; the 

 other numbers, with the exception of copper, above referred to, are theoretical. 



The International Atomic Weights are quoted from the report of the International Committee on Atomic Weights 

 (" Jour. Am. Chem. Soc.," vol. 25, p. 4). 



SMITHSONIAN TALCS. 



272 



