[Frpruary, 1904. | 
THE 
SCIENTIFIC TRANSACTIONS 
OF THE 
MOV@eur OWN SOC LE TY. 
VOLUME VIII.—(SERIES IL.) 
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. 
‘ ‘ ‘ ae « TSS 
Price One Shilling. f7_-somian Insifp),;, 
