ART. 10.— K. HONDA AND S. SHIMIZU: 



attached to the lower end of the wire is reduced to the weight per 

 square milHmeter. 



Iron wire. 



(frequency) 



140 



XlO 



Fig. 2 



Nickel wire. 



(frequency) 



As will be seen from the figures, the maximum amplitude of 

 vibration and the frequency corresponding to the maximum increase 

 with weight. lîy altering the length of the ferromagnetic wire, 

 the positions of the maxima and minima are but slightly affected. 



These positions of the maxima and minima do not coincide 

 with those in the former case ; the first maximum occurs in a higher 



