OF SILVER BETWEEN ZINC AND LEAD. 



Fig. 1. 



indicating the existence of a compound, perhaps Ag^Zn-^, in the 

 solution. But as the quantitative theory of the concentrated 

 solution has not yet been worked out, it is at present impossible 

 to attempt to account for the course of the curve in detail. 



The same authors have also studied the system zinc-lead-tin, '^ 

 in which the partition of tin between the two layers remains 

 nearly constant, so long as the concentration of tin does not 

 become too great. In this case the partition coefficient being 

 not far from unity, the experimental determination seems to 

 have been easier. The results are given in Table 2 and repre- 

 sented in the annexed diagram Fig. 2. 



1) Proceedings of the Royal Society of London, 48, (1890), 29. 



