THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Vol. XIV. (KS.), JTo. 14. EEBEUAET, 1914. 



THE SUBSIDENCE OF TORSIONAL 

 OSCILLATIONS IN NICKEL WIRES 

 WHEN SUBJECTED TO THE INFLU- 

 ENCE OF ALTERNATING MAGNETIC 

 FIELDS. 



W. BROWN, B.Sc, 



PROFESSOR OF APPLIED PHYSICS, ROYAL COLLEGE OF SCIENCE FOE IRELAND, DUBLIN, 



AND 



J. SMITH, M.A., 



RESEARCH STUDENT IN THE COLLEGE. 



[A uthors alone are responsible for all opinions expressed in their Gommunicaiions.'] 



DUBLIN: 

 PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEINSTER HOgSE, DUBLIN. 



WILLIAMS AND NORGATE, 



14, HENRIETTA STREET, COVENT GARDEN, LONDON, W.C. 



1914. 



Price Sixpence. 



MAY 18 1914 



4:, 



