Relations of the Alloys of Platinum. 



439 



10. It is desirable finally to give as graphic an exhibit of 

 the results taken collectively, as possible. Unfortunately any 

 scale which clearly presents the results for gold, silver and 

 copper, will crowd the results for platinum and the iron-carbu- 

 rets ; and vice versa. Perhaps the following chart, iig. 2, will 



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