CADMIUM. 



165 



For cadmium bromide we have — 



From (7) CdBr, = 270.073, zt .0136 



From (S) " r= 270. 124, d= .01 13 



General mean. . CdBr„ 



270.105, 



.0087 



Hence Cd = 111.417, ± .0151. 



For cadmium there are nine independent values, as follows 



From (3) ; Cd = 



From (4) 



From (2) 



From (11) 



From (9) 



From (10) 



From (i) 



From molecular weight CdBr^. . . 

 From molecular weight CdClj . . . 



General mean Cd = 



If 0= 16, Cd= 111.947. 



This result is obviously uncertain. The data are far from being con- 

 clusive, however, and I am therefore inclined to trust the mean rather 

 than any one of the values taken separately. It is quite possible that 

 the highest of all the figures may be nearest the truth, as Bucher's ex- 

 periments seem to indicate ; but until new evidence is obtained it would 

 hardly be wise to make an}^ selection. The mean obtained agrees well 

 with the data of Morse and Jones, Lorimer and Smith, and Hardin. 



