IOO 



Scientific Proceedings (28). 



In a more detailed publication of our results we shall shortly 

 draw attention to the fact that if certain of the statements made 

 by Wilson and Cramer are correct, Gamgee's protagon cannot be 

 regarded as a definite chemical compound, but must be accepted 

 as a mixture, quite unlike the product that Wilson and Cramer 

 now designate as protagon. Wilson and Cramer consider Gamgee's 

 protagon identical with their own and the standard product for all 

 protagon comparisons. They also appear to believe that anything 

 having the quantitative elementary composition of Gamgee's pro- 

 tagon, whatever the method employed to prepare it, is protagon. 



