1891.] 



On certain Ternary Alloys. 



17J 



The curves indicated by the continuous lines in figs. 7 and 8 repre- 

 snt these numbers, the dotted lines representing the analogous curves 

 iescribed in Part II, obtained with lead-zinc-tin and lead- zinc- silver 

 illoys. In fig. 7, curve No. 1 indicates the amounts of zinc dissolved 

 it 650 by 100 parts of bismuth in presence of x parts of tin, whilst 

 To. 2 represents the corresponding amounts dissolved at the same 

 jmperature by lead. Nos. 3 and 4 similarly represent the amounts 

 )f zinc dissolved at 750 by bismuth and at 800 by lead respectively, 

 fos. 5 and 6 indicate the amounts of zinc dissolved in presence of 

 parts of silver by 100 parts of bismuth at 750 and of lead at 800 

 respectively. 



In fig. 8, curves Nos. 1 and 2 respectively represent the amounts of 

 bismuth and lead dissolved by 100 parts of zinc in presence of x parts 

 of tin at 650. Nos. 3 and 4 represent similarly the bismuth dis- 

 solved at 750 and the lead at 800 respectively. Nos. 5 and 6 

 indicate the bismuth dissolved at 750 and the lead at 800 in pre- 

 sence of x parts of silver. 



