3H tteClyk. [Book IX. 



ter for receiving active properties, and being endued 

 with life. 



f A great many fubftances may enter the Jackals 

 along with the chyle, even folids reduced to fine 

 powder. When indigo has been thrown into the- in- 

 teftine of a fheep, I have feen the chyle rendered quite 

 blue : now indigo is not foluble in water, but is a folid 

 reduced into a very fine powder. So mufk gets into 

 the chyle, giving it a ftrong fmell, and a great variety 

 of other fubftances of various colours, various taftes, 

 and various fmells, each of them giving colour, or 

 tafte, or fmell, to the chyle. Nevertheless the lacteals 

 feem to poffels fome power of rejection, fmce green 

 vitriol, either exhibited along with the food, or thrown 

 into the inteftine after the animal has been opened, 

 while chyle was forming and abforbing, gives no colour 

 on infufion of gall being applied to the chyle j nor if 

 galls are thrown into the ftomach along with the food, 

 or if an infufion of them is in like manner thrown into 

 the inteftine, when an animal is opened, during the 

 time that the chyle is flowing into the lacteals, do they 

 give any colour upon a folutbn of green vitriol being 

 applied to the chyle V 



Dr. Fordyce mentions feveral inftances of the ftrong 

 afTimilating powers of the ftomachs of certain animals; 

 fuch as fifli thriving, increafing in fize, and excluding 

 feculent matter when confined in fpring water, with- 

 out any perceptible fource of nourishment, and even 

 when a communication with the air was cut off. He 

 atfo remarks, that not only farinaceous and other bland 

 fubftances are found to be attacked by infects, but alfa 

 jalap, fcammony, hemlock, and the moft deadly ve- 

 getable poifons. Even cantharides are greedily de- 



* Fordyce on DigefUou; p- |?3- 



YOU red 



