67] 



RATE OF REGENERATION— ZELENY 



67 



Dividing by the removed lengths the 



in graphic form in figure 12. 

 fractions obtained are 



1.0 1.3 1.6 2.6 4.4 6.2 



» , , , and 



1.5 2.8 4.9 8.4 13.1 18.1 



giving specific lengths of 0.67, 0.46, 0.33, 0.31, 0.34 and 0.34. 



graph for specific lengths is shown in figure 13. 



The 

 There is still a fair 



§ 







mm. 



6.0 



5.0 

 4.0 

 3.0 



2.0 

 1.0 



Figure 12 



- mm. 



I 0.70 



fe 0.60 



| 0.50 



C 0.40 



| 0.30 



bo 



S 0.20 



B 



~ 0.10 





Figure 13 



1.5 2.8 4.9 8.4 



— >- Lengths removed in mm. 

 Rana clamitans Second regenerations 



13.1 



18.1 



Twelve and a half days 



1.5 2.8 4.9 8.4 



— y Lengths removed In mm. 

 Rana clamitans Second regenerations 



13.1 



18.1 



Specific lengths Twelve 



and a half days 



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. 



