m 



ART. 4. K. HONDA AND T. TERADA. 



Tlie rigidity considerably increases with the field and tends 

 to an asymptotic value. The effect of tension is regularly to de- 

 crease the change of rigidity. The amplitude of twist affects the 

 change similarly as in Swedish iron. Tlie hysteresis-curve also 

 resembles that of the same metal, but is smaller in its area. 



45 0/, Nickel Steel. Figs. 57, 58, 59, ()0 and Gl, 

 TABLE XXXVI. 



T—^62gr.jinvi? 



