Of Quadrupeds. 
The Guts may be reckon'd Fcur. The Firft, which 
reacheth to the Caecum, above ^ a yard long 5 and near » of 
an inch over. 
The Caecum very large, near three inches long, and about 
i an inch over. Lies fpirally wound up on it felf. 
The Third, about three inches long, not above * th of an 
inch over. 
The Laft, about as long. Hath two Contractions and 
Dilatations 5 where wideft, * of an inch over. All the Guts 
together without the C tecum, not I of a yard : the fhorteft of 
all yet defcribU 
Here are none of thofe Bags upon the Anus, above men- 
tion d, 
A Rat. 
The Gulet of a RAT,is extream fmalljike that of a Squi- 
re/ 5 and inferted into the Stomach in the fame manner. 
The Stomach, with refpect to that of a Mole, very (mall 5 
fc . three times lefs : although the Body of a Rat, is above 
twice as big as the Body of a Mole. 
The fubftance hereof is alfo more plainly diftinguifh'd 
into two forts. One half, towards the left end, more pel- 
lucid, thin and membranous. The other half, fc. from the 
Infertion of the Gulet to the Pylorus, more opacous, thick 
and Mufcular. 
The Guts may be accounted Five. The Firft, or Gracile, 
5 an Eln long, and ? of an inch over. 
The Second, or Amplum, ? a yard long, and ^ of an inch 
over. 
In thefe two together, are eleven or twelve Clufters of 
Glands 3 every Clufter about the breadth of a Spangle. 
The Third, or Caecum, contained by a Ligament in an 
Orbicular pofture round about the Amplum. Above ? an 
inch over, and three inches long. So that take it breadth 
and length, and it is as big as the Stomach it felf. 
The Fourth, I crave leave to call the Abomafideum : for 
that it is in figure or ftrudhire very like to that Ventricle in a 
Sheep or Cow, called the Abomafus. About two inches long 5 
and near its Conjunction with the Caecum, * d of an inch 
over, narrowing all the way to the other end. That 
B which 
