ILLJXOIS BIOLOGICAL MOXOCRAPHS 



TABLE 43 



Rana clamitans Series 3676-3765 Sumniaiy First regenerations 



Lengths regenerated at different levels at different times 



TABLE 44 



Rana clamitans Series 3676-3765 Summary First regenerations 



Specific lengths regenerated at different levels at different times 



Experiment II Amblystoma punctatum Series 4600-5052 

 The eggs were hatched on March 29 to April 4, 1913. Opera- 

 tions on the tail were made on May 7 in numbers 4600-4752 and on May 

 10 in numbers 4800-5052. The removed lengths were approximately 

 Vio. Vr,> Vs! V2 and V, of the tail length. Measurements of the regen- 

 erated tissue were made at 2, 4, 6, 8-9, 10-11, 13, 15-16 and 17-18 days 

 after the operation. The data are given in Tables 45 to 54 and in Figures 

 36 to 51. 



The salamander larvae are much more irregular in their regeneration 

 as well as in ordinary growth than frog tadpoles. The measurements 



