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Plate III. Unequal growth of constricted nerve fibers. Cross sections through a constricted 

 nerve (right) and neighboring control nerve (left) at levels indicated in center diagram, all at 

 identical magnifications (X 425). (Rat. 35 weeks after operation; P, proximal; D, distal). The 

 same nerve fibers which are greatly shrunken distal to the constriction (lower right) have become 

 blown up to giant dimensions just proximal to tlie "bottleneck" (top right) ; some fibers have 

 become as wide as a small artery (compare the artery in the center of the distal control nerve 

 at the lower left ) . 



