REGENERATION OF PERIPHERAL NERVES 



501 



operated animals. We conclude, therefore, that in this instance 

 the operation has reduced the sectional area of the fibers of the 

 control nerve about 42 per cent. This result is all the more 

 striking when we recall that the operated animals are markedly 

 heavier than the unoperated and might be expected therefore to 

 have larger nerve fibers. 



TABLE 10 

 Measurements in square micra 



Average weight of the three animals, 156 grams 



Average age of the three animals, 189 days 



Average of control nerve in group 1, 65.7 square micra 



Average of proximal measurements of group 1, 55.8 square micra 



Average of distal measurements of group 1, 29.9 square micra 



