1^97] 
forces the meat out of its Jiomach and inteftines^ and 
then immediately returns to its prey with as craving an 
appetite as before : which continuall and infatiable hun- 
ger is judged to proceed from the Jiraitnefs of its Intejiines $ 
for, as the Learned P amius ohkrv'd in its diffeition, its 
guts had no circumvolutions or windings. From thefe 
therefore'tis plain that befidesa fermenting liquor in the 
ftomach other externall means concurr to digeftion. 
I fliall therefore in the laft place inquire what may 
probably be the Ingredients of the natural ferment fo con- 
clude. The Ingredients of the natural ferment I take 
to be thefe. xhofaliva^the fuccus of the Glands of the 
Jiomach, and a nitro-aereal fpirit of the nerves. That the 
Saliva is an ingredient, may feem probable from theie 
reafons. i. Becaufe that by the help of this, meats tho 
impregnated with different principles, may be made to 
mix with a menftruum for^ as the Learned Steno has it pag, 
the 27 thy de glandulis <?w:Saliva vero omnia ferre valetyjive 
intra corpus five extra corpus examinaveris^nihtlinvenies 
quodilla refpuet, nihil cui fine pugna non ajfocietur, 2 . Since 
the Saliva is impregnated with a volatile falt,it is probable 
that that too may help digeffion. The fecond ingredient 
I take to be a liquor that is leparated by th^ glands in the 
bottom of th^ Jiomach. And this I fliall evince by the 
Authority of the famous Willis, and Sylvius De le Boe, And 
firft from Dr. JVillis in his Pharmaceutice J^ationalis, pag.(^.- 
Tunica hcec villofa in pojlica five convex a ejus fuperficie, qua, 
tunic (Z nervece cohceret, glanduUs annulatis numerofijfitmis 
ubique cgnfita eft, qu^e proculdubio vaforum in tunica nerve a 
dehifcentium or a contegunt : ac ( uti videtur ) humorem 
ilUs dejiinatum aut ab its depofitum, immediatiiis excipiunt 
ac percolant. Sylvius pag 881. gives us this acco unt of it : 
hoc chylificans fermentuminrecens natorum vitulorum ven- 
triculis reperitur craJJiujculum,diciturquecoagulum :fenfim 
autem minuitur, acin adultis , glutinis injlar^ ojfenditur liqui* 
diufculum inter ventriculi rugas hcerens. By thefe there- 
O 2 fore 
