Recr^neratioji in Lunibn cuius 



o 



561 



the regenerated tails of these pieces had been cut off, so that since 

 then the worms had been regenerating anew. Only pieces of 

 three levels (A3, A4, A5) were alive. The data are given in Table 

 IV. 



TABLE IV 



November 8/November 21 



This table shows that in course of the second period of tw^o 

 weeks, the pieces regenerated about one-half as many segments as 

 were regenerated for the first period of two weeks. The regener- 

 ated tails were cut off once more, November 21. (It should be 

 remarked in this connection that not only the regenerated tails, 

 but also the regenerated heads as well were cut off every time.) 



