PHILOSOPHICAL TRANSACTIONS 
OP THE 
ROYAL SOCIETY OF LONDON. 
Series A, Vol. 222, Pp. 1-43. 
THE EMISSION OF ELECTRONS UNDER THE INFLUENCE 
OF CHEMICAL ACTION. 
O. W. RICHARDSON, F.R.S., 
WHEATSTONE PROFESSOR OF PHYSICS, UNIVERSITY OF LONDON, KING’S COLLEGE. 
m 
Printed and Published for the BOYAL SOCIETY by 
HARRISON AND SONS, Ltd., 44-47, ST. MARTIN’S LANE, LONDON, W.C. 2. 
13 rtuter^ in ©riltnarj) Id 
1921. 
Price Four Shillings. 
A 594. 
30.4,21 
