CILIATED ANIMALCULES. 



We feel, therefore, but little surprise that, with such powers of 

 propagation, these minute creatures soon become diffused in 

 countless myriads through the waters adapted to their habits. 



FlG. 15 VoRTICELLjC. 



Nor is this all : the reproduction of these prolific animals is 

 sometimes effected in various ways, and not unfrequently the 

 same individual is found to propagate by two or three different 

 modes thus, many species are multiplied by buds which sprout 

 like those of plants from the surface of their bodies, and speedily 

 attaining the shape of their parent, develop the cilia character- 

 istic of their species. 



FIG. 16. VAGINICOLA. ' 



Neither is it difficult to understand the necessity for such 

 amazing fecundity. These moving atoms are the source from 

 which innumerable animals derive their sustenance, which, in their 



