!?J> W:'6 
mi) 
Ni 
26 MAY 22 
NATURAL 
HISTORY. 
PHILOSOPHICAL TRANSACTIONS 
OF THE 
ROYAL SOCIETY OF LONDON. 
Series A, Vol. 222. Pp. 369-400. 
(Plate 3.) 
BAKERIAN LECTURE. 
ON THE SPECTRUM OF HYDROGEN. 
BY 
T. R. MERTON, D.Sc., F.R.S., 
PROFESSOR of spectroscopy in the university of oxford, 
AND 
S. BARRATT, B.A., 
BALLIOL COLLEGE, OXFORD. 
Printed and Published for the ROYAL SOCIETY by 
HARRISON AND SONS, Ltd., 44-47, ST. MARTIN’S LANE, LONDON, W.C. 2. 
$rintrrg tn ©rtrtnarg tn $lajes'tjj. 
1922. 
Price Four Shillings. 
A 603. 
27.4.22 
