



THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Vol. XV. (I.S.), lo. 17. JANUARY, 1917. 



THE FATIGUE OF NICKEL AND IRON WIRES 

 WHEN SUBJECTED TO THE INFLUENCE 

 OF TRANSVERSE ALTERNATING MAGNETIC 

 FIELDS. 



BY 



WILLIAM BROWN, B.Sc, 



PEOFESSOR OF APPLIED PHYSICS, ROYAL COLLEGE OF SCIENCE FOE IRELAND, DUBLIN. 



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



DUBLIN : 



PUBLISHED BY THE ROYAL DUBLIN SOCIETY, 

 LEINSTER HODSE, DUBLIN. 



WILLIAMS AND NORGATE, 

 U, HENRIETTA STREET, COVENT GARDEN, LONDON, W.C.' ; , 



1917. 



Price Sixpence. 



