INCREASE OF ANIMALCULES. 133 



to their full growth, giving origin to buds them- 

 selves. 



Another mode, which is seen in Volvox globator, 

 is by minute globular bodies, of a dark green colour, 



INCREASE OF THE VOLVOX GLOBATOR. 



covered like the parent with vibratile cilia, and 

 which swim about in the interior of the body of the 

 parent, where they appear to have ample space. 

 The transparency of this animalcule, which is of a 

 globular figure and of a delicate green, permits the 

 germs it encloses to be readily seen. 



Professor Ehrenberg observes : " All endeavours 

 to acquire some knowledge of the organization of 

 the genus volvox have proved only successful, now 

 that observation has been, at last, directed to the 

 right depth, (1833.) Formerly, the entire globule 

 was generally regarded as a single verrucose or 

 ciliated animalcule, and its bursting considered as 

 the reproduction of single individuals. But this 

 view leads to wonders and to contradictions : it is 



