THE BEGINNINGS OF II FE. 



495 



rOxytrique parfait.' After these observations M. Pineau 

 felt compelled to believe that the rotating embryos s^en 



Fig. 90. 

 Transformations of Ciliated Infusoria. 



(Pineau and Haime.) 



a-i. Representing stages by which Vorticellae became converted into 

 Oxytricha. (Pineau, X 265.) 

 )i and /. Trichoda, seen laterally and from its under surface, such as was 

 seen to result from the transformation of other specimens of 

 Oxytricha. (J. Haime, X 750.) 



within the Vorticella cysts had, by a further metamor- 

 phic process, been converted into these embryo Oxy- 

 trichse, and Mr. T. C. Hildgard has, of late, apparently 

 seen some of the stages of a similar transformation ^ 

 We now know, moreover, that a Vorticella and an 

 Oxytricha may result from the transformations of two 



^ See 'Monthly Journal of IMicrosc. Sc.,' Dec. 1871, p. 281, and 

 Silliman's 'American Journal,' August, 1S71. 



