66 



contents, partly to its irritation through the bile, 

 which falls in a little above it. It takes up almost 

 the whole umbilical region, and is usually twelve or 

 thirteen hands long. The ileum, situate below the 

 navel, fills the ilia with its numerous convolutions. It 

 is much the longest of the intestines, generally one 

 and twenty hands long. In both this and the jejunum 

 the inner coat is much wrinkled, and lies in loose 

 folds. They are formed (as the folds in the stomach) 

 only by the inner coat being larger than the outer. 



The first of the great guts, called the caecum, is li- 

 terally inserted at the upper end of the colon. It 

 is not perforated at the other end, but hangs to it 

 like the finger of a glove, and is three or four inches 

 long. Jn new-born children, and in beasts, it is 

 found full of excrements, but in adults it frequently 

 hangs like a worm. In a foetus it is doubtless are- 

 ceptacle of the fasces, during the time it does not dis- 

 charge by stool. And may it not occasionally serve 

 the same end in adults ? Perhaps in those animals 

 wherein it is very largest may likewise serve as a kind 

 of second stomach. But it is not absolutely necessary. 

 Theccecum of a dog has been cut out, without any 

 p Tceivable prejudice. 



The colon is the largest of the great guts. It runs 

 into various circumvolutions from the cot cum to the 

 rectum. It has many cavities, formed by two liga. 

 nients, running on each side of it, opposite to 

 each other the whole length, and as it were guiding 

 it at certain distances. The rectum, which reaches 

 from the os sacrum to the anus, is usually about a 

 hand and a half long. 



43. The Lacteal Veitis,which are of a whitish colour, 

 are in all the intestines, small and great, and receive 

 the chyle by imperceptible passages, throughout the 

 whole canal. And for this end the food remains so 

 long in the intestines, and is carried through various 

 windings, that whatsoever of nourishment it contains 

 may be expressed belbre.it leaves the body. 



