Regeneration m Liinihriniliis 



565 



going on undisturbed, the parts formed a certam number of seg- 

 ments, then the formation of new segments stopped, and only 

 growth, or increase in size took place. It seems as if these pieces 

 of worm, brought out of equihbrium by the operation, completed 

 themselves, attained again a state of equilibrium, and formed 



TABLE VIII 



November 2g, igo6/ January 10, igoj 



dwarf worms. These were formed by pieces one-seventh the 

 original length of the worms. If in accordance with Biilow's data 

 each worm divides spontaneously on an average into four pieces 

 (3.5 pieces being the actual average), worms only twice as big as 



