2/6 REGENERATION 



relation of the different parts of the structure can be looked upon as 

 the result of a system of tensions, we can at least form a better idea 

 as to how a piece of a whole can readjust itself into a new whole of 

 smaller size. And it is this possibility of rearrangement or regula- 

 tion that is one of the most characteristic properties of living things. 



