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INDIANA UNIVERSITY 



bath shows no deterioration with use, and gives as good deposits 

 after two months as at the beginning if the concentration, acidity 

 and the required amount of peptone are maintained. 



From the successful results obtained by the above method on a 

 laboratory scale, I see no reason why it cannot be applied on a com- 

 mercial scale especially for the plating of lead, since the deposits 

 are of exceptional smoothness and are entirely free from ''trees" 

 or loose crystals on the edges or points. 



