[ 74 3 [Book IX. 



BOOK IX, 



OF ANIMALS. 



CHAP, I. 

 OP ANIMAL MATTER IN GENERAL. 



Qextral Remarks on Animal Bodies* Products from the Dift illation 

 cf Animal Matter. Elementary Principles which enter into the 

 Compojititn cf Animal Matter. Animal Acids Different Forms 

 ef Animal Matter. Jelly* Glue.- Lymph, Further Products. 

 fat. Fibrous Parts. 



IN treating of organized bodies, as introductory to 

 an account of the vegetable fyftem, fome obferva- 

 tions were made, which are alib in a great meafure ap- 

 plicable to animal nature. The elementary principles, 

 however, which enter into, the compofition of animal 

 bodies are more numerous than thofe which are found 

 in vegetable matter ; and at the fame time the ftruc- 

 ture of animals is much more complex than that of 

 plants. In both, the growth and increafe is provided 

 for by a curious kind of chemical apparatus, adapted 

 for effecting thofe wonderful changes, diilblutions, 

 and combinations of matter, which are effential to 

 their refpective natures. All, however, that we 

 have been able to difcover in vegetables, is fome 

 traces of a vafcular fyftem ; whereas, in animal nature, 

 there is not only a mod elaborate fyftem of veflels, 

 but means provided for the segmentation of the tem- 

 perature, and for the fulfilling of thofe functions which 



belong 



