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ftomach, which is thrown into its cavity, and 

 there animalifes the food *, or affimilates it to the 

 nature of the blood. The power of this juice is 

 confined or limited to certain fubftances, efpecially 

 of the vegetable and animal kingdoms ; and al- 

 though this menftruum is capable of adding inde- 

 pendently of the ftomach, yet it is obliged to that 

 vifcus for its continuance. 



* In all the animals, whether carnivorous or not, upon which 

 I made obfervations or experiments to difcover whether or not 

 there was an acid in the ftomach, (and I tried this in a great 

 variety,) I conftantly found that there was an acid, but not a 

 ftrong one, in the juices contained in that vifcus in a natural 

 ftate. 



XXXII. Ex* 



