286 



Table I. 

 Regeneration in Obelia after the cut at level a. 





No. of cases 

 observed 



Percentages 



No. of rings 

 regenerated 



No. of cases 

 observed 



Sums from 

 beginning 



4 



4 



5 



5 



5 



9 



10 



15 



6 



12 



14 



29 



7 



9 



10 



39 



8 



2 



2 



41 



9 



9 



10 



51 



10 



11 



12 



63 



11 



8 



9 



72 



12 



5 



5,5 



77 



13 



6 



5,5 



83 



14 



11 



13 



96 



15 



1 



1 



97 



16 



2 



2 



99 



17 











99 



18 



1 



1 



100 





89 





Table II. 



Regeneration in Obelia after cut at level ß. 





No. of cases 



Percentages 



No. of rings 







regenerated 



observed 



No. of cases 



Sums from 







observed 



beginning 



2 



4 



1 



1 



3 



8 



2 



3 



4 



34 



9 



12 



5 



53 



14 



26 



6 



60 



16 



42 



7 



50 



13 



55 



8 



36 



9,5 



64 



9 



43 



11 



75 



10 



31 



8 



83 



11 



33 



8,5 



92 



12 



20 



5 



97 



13 



8 



2 



99 



14 



1 







15 











16 



1 







17 



8 







18 



1 









- 383 





