SEPARATION OF THE METALS NICKERSON 29 



needs no further verification. No confirmatory tests for the 

 three ions have been included in the procedure given. It is 

 assumed however that the usual ones are to be applied whenever 

 it is thought necessary. 



No claims are made for exceptional accuracy in the above 

 mentioned procedure. It is not intended to replace the various 

 methods which are in general use by experienced analysts. 

 In the writer's opinion, it does, within reasonable limits, offer 

 an accurate method of analysis for a rather troublesome group 

 of metals. 



