110 COMPARISON OF VEGETABLE 



CHAPTER V. 



COMPARISON OF VEGETABLE WITH ANIMAL 

 PHYSIOLOGY. 



79. 



IT is impossible to consider the subject of 

 Vegetable Physiology and organization, 

 without being struck by the analogy which it 

 presents in so many points to that of Animals. 

 Yet, however strong may be that analogy, 

 it never in any instance becomes identity, and 

 the marked fact, noticed in the Introduction, 

 that the latter in all cases convey their food by 

 the mouth to a stomach, is alone sufficient to 

 establish a boundary between them ; * the com- 



* There does indeed appear to be one group, about 

 whicb some doubt exists in the mind of some physiolo- 

 gists as to its reference to the animal or vegetable king- 

 dom. "They are mostly," says Dr. Carpenter, " formed 

 of cells jointed together, as the Confervae; but some of 

 them seem to possess a different interior structure ; and 

 others exhibit very curious motions, which can scarcely 

 be distinguished with certainty from those of animals." 

 (Carpenter's Veg. Pby. p. 44.) 



