PHILOSOPHICAL TRANSACTIONS 
OF THE 
ROYAL SOCIETY OE LONDON. 
Series A, Yol. 218. Pp. 373-393. 
[Plates 3 and 4.] 
! 
jAJJi ‘ - ? - , ' 'Jr*> '■(■Cry ■ 47 
. 
^ ..... ^ 
SURFACE REFLEXION OF EARTHQUAKE 
WAVES. 
BY 
GEORGE W. WALKER, A.R.C.Sc., M.A., F.R.S., 
FORMERLY FELLOW OF TRINITY COLLEGE, CAMBRIDGE. 
Printed and Published for the ROYAL SOCIETY by 
HARRISON AND SONS, 4A-47, ST. MARTIN’S LANE, LONDON, W.C. 2, 
Printer# tn (OrUinarn to ?£i# fHajes'tg. 
1919. 
567. 12.6 
Price Tiuo Shillings and Sixpence , 
