56 



ART. 7. — K. HONDA AND T. TERADA. 



from the others. If x he independent of IT, Cantone's formula 

 coincides with the others. 



Thns, the chief rehitions to be tested by experiments :ire as 

 follows : — 



Oe _ 0/ _2^ OP 



l_^E__ ^i 



ßr 2 r*7 07 



Our present experiments combined with the previous investi- 

 gations on the change of elastic property due to magnetization 

 furnish us with good materials for the testing of these relations. 



Our results taken as a whole, give for the effect of tension 

 as well as of twist, two different sets of experimental data 

 corresponding to the different orders of applying the magnetic 

 fiekl and the stress. The mutual correspondence of the results 

 in the previous and the present experiments in this respect is 

 tabulated below : 



CltaiKje of Si rains hy 

 Magnetizatiiju. 



1 . Magnetic elongation under 

 constant tension. 



Elongation by tension under 

 constant field. 



2. INIagnetic twisting under 

 constant couple (Baru.s's method). 



Cliaugc of rigidity under con- 

 stant field (oscillatiun method). 



Chanfje of 3IagnctiZ((t/ou hij 

 Strain. 



\.' Magnetization under con- 

 stant tension. 



Change of magnetization by 

 tension under con.stant field. 



2.' Magnetization under con- 

 .'^tant twi.st. 



Change of magnetization by 

 twist under constant field. 



