OF CILIATED INFUSORIA 285 



we consider the far from simple structure of these unicellular 

 Ciliates ; that no kinship of any sort, in the ordinary sense of the 

 word, exists between them and Rotifers ; and, further, that even 

 totally different forms of Ciliated Infusoria are capable of being 

 produced from the egg-substance of a Hydatina according as it 

 becomes transformed as a whole, or only after having under- 

 gone segmentation into a varying number of small spherical 

 masses. 



