TRANSACTIONS 



OF THE "^ 



CAMBRIDGE 



PHILOSOPHICAL SOCIETY. 



Volume VIII. Part V. 



CAMBRIDGE: 



PRINTED AT THE VNIVERSITY PRESS i 



AND BOLD nv 



JOHN WILLIAM PARKER, WEST STRAND, LONDON; 

 J. DEIGHTON; AND MACMILLAN & CO., CA.MIHUDGK. 



U.DCOC.XLIX. 



