THE PURIFICATION OF THE BLOOD, ETC. 63 



from the positive division of the frame of many 

 of the lower orders of the animal kingdom. 

 But further examples are not needed ; and yet, 

 as we are dwelling upon the energy of the vital 

 principle, we can hardly pass over the astonish- 

 ing fact, that among certain of the lower orders 

 of creation, namely, the polygastric animalcules, 

 reproduction is by buds, by spontaneous di- 

 vision, and by eggs, while some species exhibit 

 each of these modes of continuing the race. 



