THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Yol. XV. (I.S.), Jo. 12. MAT, 1916. 



THE CHANGE OF LENGTH IN NICKEL WIRES 

 DUE TO TRANSVERSE MAGNETIC FIELDS 

 DIRECT AND ALTERNATING. 



BY 



WILLIAM BROWN, B.Sc, 



PBOFESSOK OF APPLIED PHYSICS, EOYAL COLLEGE OF SCIENCE FOE IEELAND, DUBLIN, 



\_A uthors alone are responsible for all opinions expressed in their Communications-] 



DUBLIN: 



PUBLISHED BY THE HOYAL DUBLIN SOCIETY, 



LEINSTEK HOUSE, DUBLIN. 



WILLIAMS AND NORGATE, 



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



1916. 



Price Sixpence. 



