[Fepruary, 1904. | 
THE 
SCIENTIFIC TRANSACTIONS 
OF THE 
OVA JIDUIEIGIINT SOOM hae 
VOLUME VIII.—(SERIES ITI.) 
VI. 
ON THE EMANATION GIVEN OFF BY RADIUM. 
BY 
J. A. McCLELLAND, M.A., 
Professor of Experimental Physics, University College, Dublin. 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
WILLIAMS AND NORGATE, 
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. 
1904. 
