PROCEEDINGS \> £v 



>>f the X; *X ■<: 



% 



CAMBRIDGE PHILOSOPHICAL 



SOCIETY. 



VOL. VII. PART IV 



[Lent and Easter Terms, 1891.] 



<&amtm'fcge : 



PRINTED AT THE UNIVERSITY PRESS, 



AND SOLD BY 



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



G. BELL AND SONS, LONDON. 



1891 



Price Five Shillings 



