THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Vol. XIII. (I.S.), m. 3. APRIL, 1911. 



MECHANICAL STRESS AND MAGNETISATION 

 OF NICKEL (PART IL), AND THE SUBSIDENCE 

 OF TORSIONAL OSCILLATIONS IN NICKEL 

 AND IRON WIRES WHEN SUBJECTED TO THE 

 INFLUENCE OF LONGITUDINAL MAGNETIC 

 FIELDS. 



BY 



WILLIAM BROWN, B.Sc, 



PEOFESSOE OF APPLIED PHYSIOS IN THE ROYAL COLLEGE OF SCIENCE FOR IRELAND, 



[_A ufhors alone are responsible for all opinions expressed in their Communioafions.] 



DUBLIN : 



PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEINSTER HOUSE, DUBLIN. 

 WILLIAMS AND NORGATE, /ll^^t^^^"'^" '"S^/Vi/ 



14, HENRIETTA STREET, COVENT GARDEN, LONDON, WJD. aIjQ lilion 



1911. V ^; ^*''^ 



Price One Shilling. 



V, 



