oummary and Conclusions. 



1. An arneba from v/hich the nucleus has been removt d 



may at times exhibit perfectly normal movement; in gen- 

 eral, however, movement is somewhat affected by removal 

 of the nucleus. 



2. An ameba deprived of its nucleus lives almost as long 

 as an ameba deprived of food. 



o. i:,vidence is offered that Ameba can use glucose in solu- 

 tion as a food. There is also evidence that Ameba can 

 synthesize glucose and urea, or some derivatives of 

 these substances, to form a product which is of nutri- 

 tive value. 



4. Glucose is also of some benefit to the enucleated ameba, but 



the supposed synthesis of glucose and urea can not be 

 performed. 



5. The non-nucleated cell is injured more quickly by either 



a lack or an excess of oxygen than is the normal nucleated 



cell. 

 G. The non-nucleated cell is somewhat more susceptible to high 



or lov/ temperature than the nucleated cell. 

 7. The non-nucleated cell is more susceptible to cyanide than 



the nucleated cell. 



(61) 



