8 



France, iu 1784, and the almost perfect skeleton mentioned 

 before as having been purchased by himself in London, in 1818. 

 Now he has given us a table of the dimensions of the several 

 parts of the head in these two specimens. Eeducing it to English 

 measure, I shall make use of this table by placing his observations 

 iu parallel columns to the correspondiag dimensions of the 

 Sydney whale. It will thus be seen that while Cuvier's two 

 whales do not considerably differ among themselves in the relative 

 proportion of the parts of the head, there is a wide discrepancy 

 in the proportion which the parts of the head in the Sydney 

 cachalot bear to each other. It is on viewing such a table that 

 we regret the want of accurate drawings by which we might 

 compare the external forms of these three animals in other ways 

 than by mere measurement of their bones, I have, in the table, 

 also placed some measurements of the head of Sir Clifford 

 Constable's Yorkshire skeleton, and of a skull of Gray's Catodon 

 macrocephalus which is in the British Museum. They are all the 

 dimensions of these last two Avhich have as yet been recorded. 



