EFFECT OF STRESS OX M AGXETIZATION. 



35 



Curves {dl, H)j, (Figs. 26, 27 and 28, dotted Hues) deduced from 

 (/, H)r take a course quite similar to those deduced from (o/, T)ii 

 In 2S.74iO/o Ni., the maximum o/ is generally greater, and the asymp- 

 totic value decidedly greater than in (o/^ 7')^^ for the same tension 

 and field. On the contrary, nl oî 50.72o/o Ni. is always less than 

 the corresponding value in the last experiment. In 70.o2o/o Ni., 

 there is a fair coincidence between the two values of nl. 



28.74-.' NICKEL STEEL. 



/=i4.o° C. 



