LECTURE IV. 181 



Mr. Coleman supposes that nature has al- 

 lotted to the horse but a small stomach, 

 that the food might not, by being accumu- 

 lated, impede the action of the diaphragm, 

 and affect that free respiration which his 

 speed of progression requires. 



Having shown what Mr. Hunter knew 

 and thought with respect to digestion, as 

 carried on in cavities allotted for that pur- 

 pose, it is proper to add, he was fully 

 apprized that the same process could take 

 place without the preparation and aid of 

 solvent liquors. 



Both analogy and observation warrant 

 the supposition, that some animals have no 

 digestive organs, and that their vessels, like 

 those of vegetables, imbibe and distribute 

 what becomes nutritious in the vessels 

 themselves. No one has, I believe, seen 

 digestive organs in the tenia ; from various 

 apertures we are able to inject different 

 kind of vessels, so that this animal appears 

 to be very vascular in every part, which is, 

 I believe, as much as is known respecting 



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