TRANSACTIONS 



CAMBRIDGE 



PHILOSOPHICAL SOCIETY. 



Volume IX. Part III. 



N.B. To this Part is attached a Treatise on The Theory of the Long Equality or Urawus and 

 Neptune, which will form an Appendix to the Volume. 



CAMBRIDGE: 



PRINTED AT THE UNIVERSITT PRESS,- 



AND SOLD BY 



JOHN W. PARKER AND SON, WEST STRAND, LONDON; 

 J. DEIGHTON; AND MACMILLAN & CO., CAMBRIDGE. 



M.DCCC.LIII. 



