Expernuents in Tratis planting Limbs 



263 



into the peroneal and tibial nerves. The former gives off at the 

 knee (Fig. 11) a ramus cutaneiis cruris lateralis and continues 

 down the shank whence it may be followed into the tarsus. This 

 nerve is extremely difficult to follow and it is uncertain whether 

 it divides into its r. lateralis and r. medialis. Certain it is that at 

 the tibio-tarsal joint and further on only the r. medialis is present. 

 This is, however, quite well defined and may be traced through 



Primary Litnb 



t- prof post 



V. cut. fern lat 



Accessory Limb 

 r cut fern post 



r prof post 



t1.i5ChlddlCUi) 



rr cut. fern, post 



^n iscfiiadictib 

 rcut.aberraris 



Fig. 13 Section through the two normal transplanted limbs in the upper part of the thigh. * The 

 ramus cutaneus femoris lateralis is some distance from its normal position. X 67. 



the tarsal region. I have not been able, however, to make out 

 the nn. interstitiales dorsales. 



The tibial nerve, soon after its origin, divides into a super- 

 ficial and deep ramus of which, contrary to the normal condition, 

 the former is distinctly larger (Fig. ii). This may be followed 

 in its normal position through the shank and tarsus into the foot. 

 The deep branch may be followed through the shank. At the 

 tibio-tarsal joint it approaches very near to the superficial branch, 



