[Fepruary 6, 1906. | 
THE 
SCIENTIFIC TRANSACTIONS 
OF THE 
MmOnwws MU BILIN SOCIETY. 
VOLUME IX.—(SERIES IL) 
II. 
THH ENERGY OF SECONDARY RADIATION. 
BY 
J. A. McCLELLAND, M.A.., 
Professor of Experimental Physics, University College, Dublin. 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
WILLIAMS AND NORGATH, 
14, HENRIETTA STREET, COVENT GARDEN, LONDON; 
20, SOUTH FREDERICK STREET, EDINBURGH: anv 7, BROAD STREET, OXFORD. 
PRINTED AT THE UNIVERSITY PRESS, BY PONSONBY AND GIBBS. 
1906. 
Price One Shilling. 
