MODE OF ORIGIN OF NERVE FIBRES IN NERVE CENTRES. 173 



commonly lie imbedded. Each cell, however, occupies a kind 

 of capsule composed of nucleated connective tissue, from the 

 inner surface of which it retracts when acte 1 upon by strongly 

 hardening fluids. 



Fi. 26. 



Fig. 26, A. Three bipolar ganglion cells, from the Ganglion Gasserii 

 of the Pike after Bidder. 



B. Three bipolar ganglion cells, from the auditory nerve of the Pike, 

 a, still contained in the medullary sheath; b, entirely ; c, partially 

 exposed, in order to show that these ganglion cells are only nucleated 

 dilatations of the axis cylinder. 



P 2 



