^^ 



THE 



SCIENTIFIC PROCEEDINGS 



OF THK 



ROYAL DUBLIN SOCIETY. 



Yol. XII. (I.S.), M. 29. APRIL, 1910. 



CHROME STEEL PERMANENT MAGNETS. 



W. BROWN, B.Sc, 



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



[A uthors alone are responsible for all opinions expressed in their Communioaiions,'] 



DUBLIN : 



PUBLISHED BY THE EOYAL DUBLIN SOCIETY, ' 



LEINSTER HOUSE, l^UBLIN. 



WILLIAMS AND NORGATE, 



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



1910. 



Pnce Sixpence. ( "^ JuiM io lyju ^ 



