COMPLETE EKEEZING-POINT CURVES OF BINARY ALLOYS. 69 
we have been troubled b}^ the oxidation of the aluminium, and hope to get better 
results. There can be little doubt that the chemical compounds formed by aluminium 
with other metals are unusually stable. 
The numbers below tbe curve give the Centigrade temperature. 
The numbers above the curve give the atomic percentage of the dissolved metal. 
The experiments described in the present paper were to a large extent carried out 
with apparatus purchased by funds supplied to us by the Grant Committee of the 
Eoyal Society, and we wish here to thank them for the important help that we have 
received in this way. 
