454 



T. H. MORGAN. 



The Tables VIII and IX add a large number of data to 

 those of the preceding tables. It will be noticed that there is 

 one definite case of five new segments coming in for five cut 

 ofiP. There are also a number of irregular methods of union of 

 new and old parts, and several cases of imperfectly formed new 

 rings. The next table covers much the same ground as the 

 preceding, but is interesting because the worms had been kept 

 for a much longer time than those in the preceding table, and 

 because the last record shows a case where from thirty to forty 

 segments were in all probability cut off, and yet three and a half 

 segments had regenerated. 



