I r M I’l MA I UKI IJtNIlUMAOl 
i. Xeviilf. 
Phil. Trans. A .Vol.202,Pi. 11. 
Equilibrium OF THE Copper-Tin Alloys. 
Percentage by Weight of Tin. 
50 55 60 65 70 75 Hn 
' ' I I I- 1 -1-1-1-1-r-1— 
Edwin Wilson, Caoiti’idge. 
