[Aprin, 1898.] 
THE 
iy 4 \ 
SCIENTIFIC TRANSACTIONS 
OF THE 
Pepe Pr DLIN. SOCEH TY, 
VOLUME VI.—(SERIES IL.) 
XV. 
RADIATION PHENOMENA IN A STRONG MAGNETIC FIELD. 
By THOMAS PRESTON, M.A., F.R.U.I. 
(PLate XXI.) 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
WILLIAMS AND NORGATE, 
14, HENRIETTA STREET, COVENT GARDEN, LONDON; 
20, SOUTH FREDERICK STREET, EDINBURGH; anp 7, BROAD STREET, OXFORD. 
PRINTED AT THE UNIVERSITY PRESS, BY PONSONBY AND WELDRICK. 
1898. 
Price One Shilling. 
