PROCEEDING S*» 
OF THlf 
J UL 26 7969 
CAMBRIDGE PHILOSOPHICAL 
SOCIETY. 
VOL. XI. PART III. 
[Easter Term 1901.] 
GDambrftige : 
AT THE UNIVERSITY PRESS, 
AND SOLD BY 
DEIGHTON, BELL & CO. AND MACMILLAN & BOWES, CAMBRIDGE. 
C. J. CLAY AND SONS, AYE MARIA LANE, LONDON. 
1901 
Price Two Shillings and Sixpence. 
10 Aug. 1901. 
