1 82 'Journal of Comparative Neurology and Psychology. 



In doing this, we assume that the reduction can be made by- 

 simple proportion. The results based on the reduced values are 

 given in the following Table 8. 



TABLE 8. 



Showing the relative length of the internodes at T^ compared with those at Sy as a 

 standard, in the case of the several diameter classes in all three frogs (Frog 3, 

 Frog 5 and Frog 8). 



A study of Table 8 reveals several points of interest. First, the 

 internodes at T^ are always considerably longer than at S^. 



Second, the relative value at T^ ranging from 136.6 to 115.7, 

 is always much less than the relative growth of the foot, namely. 



Third, it appears that this proportional excess of the internodes 

 in the foot tends to diminish in the larger frogs. Frog 8, the 

 largest, showing a value of 115.7, whereas Frog 3, the smallest 

 frog, shows 136.6, and Frog 5, intermediate in weight and length, 

 gives an intermediate value. 



We conclude from these relations, that while the length of the 

 internode along the fiber is probably influenced by the elongation 

 of the segment in which it is found the effect of the local elongation 

 is more or less distributed over the entire length of the nerve fiber. 

 If we wish therefore to discover what is really taking place as 

 regards the lengthening of the internodes, we must study the 

 changes over the entire extent of the fiber. 



