TRANSACTIONS 



CAMBRIDGE 



PHILOSOPHICAL SOCIETY. 



ESTABLISHED November 15, 1819. 



VOLUME THE THIRD. 



CAMBRIDGE: 



PRINTED AT THE UNIVERSITY PRESS ; 



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

 AND T. CADELL, STRAND, LONDON. 



M.DCCC.XXX. 



