r.FFECT OF STPvEPS OX MACiXKTTZATroX. 



31 



ward slowly with the tension. Tlic increase in low fields is 

 tolerably large, but in strong fields, it is very small. The initial 

 effect is significant only for weak fields, where the cyclic is 

 remarkably less than the initial. The following tables and Figs. 

 23, 24 and 2^") show these changes of magnetization. 



Cnrves (o/,, H),. from (o/., T)ii rise rapidly with the field, 

 attain shar]) maxima at low fields, fall at first rapidly and 

 then gradually to asym])totic values, as shown in Figs. 2'), 27 

 and 28 in full lines. The maximum of ()I increases with tension. 

 For the same tension, the maximum rapidly increases with the 

 percentage content of nickel. 



28.74-.; NICKEL STEEL. 



Initial 7"= i 34 .^r. /;/////.,- /=i4.o° C. 



