67] 



RATE OF REGENERATION— ZELENY 



67 



in graphic form in figure 12. 

 fractions obtained are 



1.0 1.3 1.6 



Dividing by the removed lengths the 



2.6 



4.4 



1.5 2.8 4.9 

 giving specific lengths of 0.67 



and 



6.2 



8.4 13.1 18.1 



0.46, 0.33, 0.31, 0.34 and 0.34. 



The 



graph for specific lengths is sliown in figure 13. There is still a fair 



a 



s- 

 <v 

 c 

 a; 



M 

 u 



be 



c 



•J 



mm. 

 6.0 



5.0 



4.0 

 3.0 



2.0 

 1.0 



1.5 



2.8 



Figure 12 



4.9 8.4 



Lengths removed in mm. 

 Rana clamitans Second regenerations 



13.1 



18.1 



Twelve and a half days 



u 

 <v 



a 

 <v 

 bo 



<D 

 h 



CO 



Xi 

 *j 

 M 

 C 

 <D 



O 



o 



a 

 w 



mm. 



0.70 



0.60 



0.50 



0.40 



0.30 



0.20 



0.10 



Figure 13 



and a half days 



1.5 2.8 4.9 8.4 



— >■ Lengths removed in mm. 

 Rana clamitans Second regenerations 



13.1 



18.1 



Specific lengths Twelve 



approach to constancy with removals of 4.9 mm. and above. The rela- 

 tive increase in the case of the higher removals is due to the fact that 

 regeneration is continuing in them after it has stopped in the others. 



