280 CELL INTELLIGENCE THE CAUSE OF EVOLUTION 



that resembles in some particulars an entirely different 

 specific form." You will notice that if no lime is at hand 

 the cells cannot produce the skeleton. 



Before going into further discussion of development in 

 general, I wish to call the reader's attention again to the 

 fact that the cell is an animal divided into three general 

 departments, the centrosome, which is the general super- 

 intendent, the nucleus, which seems to represent the 

 skilled workers, and the cytoplasm or the main body, 

 which does the general labor such as muscular work, etc. 

 This shows clearly that the animal has special organs and 

 that there is division of labor. Mr. Wilson calls our at- 

 tention to it in the following language after fully dis- 

 cussing the matter: "The facts reviewed in the forego- 

 ing pages converge to the conclusion that the differentia- 

 tion of the cell-substance into nucleus and cytoplasm is 

 the expression of a fundamental, physiological division of 

 labor in the cell * * *." Hemmingway concludes that 

 "the centrosome is the motor center of the kinoplasm, 

 both for the external and for internal manifestation. Len- 

 hossek regards them as motors for the control of ciliatory 

 action as well as for the spermatozoon and perhaps also 

 for that of the nucleus fibrillae." Zimmerman concludes 

 that the micro-centrosome is the motor center of the cell, 

 also that it controls ciliary action. It is important to have 

 a general idea of the make up of the cell and to remember 

 that he is a very highly organized and specialized being. 

 First there is a general manager called the centrosome, 

 next a multitude of skilled workers or submanagers 

 called nucleus or chromatin granules, and next, the gen- 

 eral laborers or workers called the cytoplasm. 



I wish now to call the reader's attention to one very 

 important discovery and that is in reference to the future 

 actions of the cells in the building of the animal. Why 



