CONSTITUTION OF TMK Al.M>YS OF AI.I'MINUM AM> /INC. 31!) 



Eleven typical examples <>t' tlirs. >ling-curves are reproduced in figs. 1 and 2. The 



numbers attached to each curve refer to the alloys as numbered in Table I. ; these 



VU>JL 



/* U >f 



Fig. 1. 



M *,** 



Fig. 2. 



numbers approximately represent the percentage of zinc contained in the alloys. The 

 actual observations on which these curves are based are given in an appendix. 



