76 Tfo Principles of Part II. 



dergoing the other two fermentations ; but 

 the acefcent can be made fir/I to ferment 

 into wine, and generally of themfelves un- 

 dergo the acetous fermentation, before they 

 fall into the putrid. Animals are conti- 

 nually in the very confines of putrefaction ; 

 and when death flops the circulation and 

 admiflion of frefh juices, they fall imme- 

 diately into it. Animals, and alkalefcent 

 plants, as they want that acid which abounds 

 in the acefcent plants, have a greater ten- 

 dency to putrefaction, which every one 

 knows is greatly retarded by acids. Next 

 to the excrements, which are already in a 

 ftate of high putrefaction, the blood is the 

 moft putrefcible fluid in the whole body 3 

 then the urine ; and afterwards the folids. 



THERE are three circumftances necefTary 

 to the procefs of putrefaction, viz. moifture, 

 heat, and the admiffion of the external air. 

 Moillure is necefTary to foften the fibres of 

 plants, that they may be capable of the in- 

 teftine motion 5 for. we fee that dry flraw 



Ml 



will 



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