[NovemBer 3, 1904. ] 
THE 
SCIENTIFIC TRANSACTIONS 
OF THE 
Meh wel BENS SOC TY. 
VOLUME VIII—(SERIES IL) 
XII. 
ON THE STATE IN WHICH HELIUM EXISTS IN PITCHBLENDE. 
BY 
RICHARD J. MOSS, F.LC., F.CS. 
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 GIBBS. 
1904. 
