168 LECTURE IV. 



Many carnivorous animals, he observes, 

 divide their food no further than is neces- 

 sary to enable them to swallow it ; and all 

 animals whose food requires this degree of 

 subdivision must have means to effect it. 

 Mr. Hunter has shown that cuttle-fish have 

 beaks like birds ; and that worms have 

 osseous teeth fixed in the fleshy circles that 

 form their mouths. He has placed the pre- 

 parations which show these and similar facts 

 in a department of his Museum, allotted to 

 show peculiarities belonging to individuals 

 of any species or genus of animals, which 

 do not belong to others of the same kind ; 

 and not among the preparations displaying 

 the anatomical facts relating to digestion in 

 general. Mr. Hunter studied anatomy as 

 a physiologist, he investigated structure in 

 order to understand function, and he has 

 omitted to record or exhibit many anato- 

 mical facts, with which he doubtless was 

 acquainted, because they did not seem to 

 lead to a physiological conclusion. 



Herbivorous animals in general grind 

 their food with their teeth ; nay those who 



