PEOCEEDINGS 



OF THE 



CAMBRIDGE PHILOSOPHICAL 

 SOCIETY. 



VOL. XV. PAKT VL 

 [Easter Term 1910.] 



,~UF-' 



AT THE UNIVERSITY PRESS, 

 AND SOLD BY 

 DEIGHTON, BELL & CO. AND BOWES & BOWES, CAMBRIDGE. 



CAMBEIDGE UNIVERSITY PRESS, 

 C. F. CLAY, MANAGER, FETTER LANE, LONDON, E.G. 



1910 

 Price Three Shillings 



20 October, 1910. 



