Brown — The Suhsidence of Torsional Oscillations. 



135 



300 



200 



100 



25 50 



Fig. 2. — Number of Vibrations. 



Table VIII. 

 Rigidity = 780 x 10 6 grammes per sq. cm. 

 H = 250 units. 



The values in Table VIII show that when the frequency of the applied 

 transverse alternating magnetic field is increased, the damping of the torsional 



