562 



S. Mar gill IS 



After a third period of two weeks (December 5) the pieces A3, 

 A4 and A5 were examined. The result is recorded in the Table V. 



Again we see that the pieces have regenerated only about one- 

 half as many segments regenerated for the second period of two 

 weeks, and about one-fourth as many for the first two weeks. 



TABLE V 

 November 21/ December 5 



It is worth mentioning in this connection, that the ratio between 

 the amounts of regeneration at various levels remains almost con- 

 stant during the three successive periods of two weeks each. Thus 

 the ratio between the amounts of regeneration of A3 and A^, A3 and 

 A5, A4 and A5, for the first period will be: 



1.2; 



31 



1-7 



2.6 



IT 



2.6 I 



The same for the second period will be: 



1. 81 1.8 „ 1.5 



= 1.2; = 1.8; -^ 



I. <; 1 .0 1 .0 



= I 



= I 



