REGENERATION IN LUMBRICULUS. 



293 



compensated by an increase in the region nearest the wound. 

 Mitoses, however, are somewhat less frequent in this region too. 

 As in posterior regeneration the numbers continue to decrease 

 and by the seventh day both of these features are rare in the 

 gut of the old part. Tables X. and XI. give records for two- and 

 four-day regenerates, respectively. Tables XII. and XIII. give 

 comparative data for the nearer and more distant segments for 

 double nucleoli and mitoses, respectively. 



There is little, if any difference, then, in the behavior of the 

 cells of the intestine in anterior and in posterior regeneration. 



TABLE X. 



2 DAYS OF REGENERATION. 



TABLE XI. 



4 DAYS OF REGENERATION. 



TABLE XII. 



DOUBLE NUCLEOLI. 



TABLE XIII. 



MITOSES. 



