PROCEEDINGS 



OF THE 



CAMBRIDGE PHILOSOPHICAL 

 SOCIETY. 



VOL. XI. PART VI. 



[Easter Term 1902.] 



QOMCJL&k^ 



AT THE UNIVERSITY PRESS, 



AND SOLD BY 



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

 C. J. CLAY AND SONS, AVE MARIA LANE, LONDON. 



1902 



Price Two Shillings and Sixpence. 



13 August 1902. 



