Chap. xiv. j NERVE-FIBRES. 113 



membranes. The primitive nerve-fibrils lie in the 

 interstitial substance between the epithelial cells, as 



Fig. 69. Nerve-fibres of the Cornea. 



a, An axis cylinder splitting up into its constituent primitive flbrillse near the 

 anterior epithelium of the cornea; 6, primitive fioriHas. 



intra-epithelial networks and as primitive fibrils which 

 appear to terminate with free ends. 



148. Tracing then a nerve-fibre, say one of common 

 sensation, from the periphery towards the centre, we 

 have isolated primitive fibrils or networks of them : 

 I 1 



