TRANSACTIONS 



OF THE- ,-' f 



CAMBRIDGE 



PHILOSOPHICAL SOCIETY. 



ESTABLISHED November 15, 1819. 



VOLUME THE SIXTH. 



CAMBRIDGE: 



PRINTED AT THE PITT PRESS: 



AND eOLD BY 



.JOHN WILLIAM PARKER, WEST STRAND, LONDON; 

 J. & J. J. DEIGHTON; AND T. STEVENSON, CAMBRIDGE. 



M.DCCC.XXXVin. 



