ALGyE. 1 1 1 



transformation, and, although he had not actually 

 seen the actinophorous form enclose particles of food, 

 yet he deemed the form itself sufficiently significant 

 to guarantee this induction, since he had never wit- 

 nessed a rhizopod of this kind without its attacking 

 everything, living or dead, that it could overcome 

 and turn into nourishment ; besides, such a form 

 could obtain sustenance in no other way. If this 

 was not satisfactory, it was not difficult to conceive 

 that what the portions of protoplasm in an acti- 

 nophorous form would do within, they would do 

 outside the cell of Spirogyra ; and it had been 

 shown, in the first process detailed, that inside the 

 cell they enclosed chlorophyll, and finally ejected 

 the refuse in the manner oi Auiceba. 



It was true that the transformation of the proto- 

 plasm of the cell of Spirogyra, and its movements 

 above detailed, were unlike the phenomena of vege- 

 table life, but the formation of the spore itself in the 

 normal way, and the movements of the protoplasm 

 of the conjugating cells just preceding it, merely 

 required to be studied to bring about the conviction 

 that one was but a modification of the other. In the 

 abnormal way the chlorophyl died, two cysts were 

 formed around the portions of protoplasm respec- 

 tively, the starch passed into oil, the refuse of the 

 chlorophyl was thrown off from the enclosed proto- 

 plasm in the manner of a rhizopod, the protoplasm 

 divided up into monads, which came forth as animals 

 — that is, in the form of rhizopods endowed with the 

 power of locomotion and polymorphism, and thus 

 under a form which does not live by endosmosis, 



