PLATE LXVI. 



Fia. 



cn the author's view of the arr tngeme] >.f the 

 tie I've fibres composing the ' networks.' a a. dark-bordered 

 aud fine nerve trunks. 



Central and peripheral 

 portion of a nervous ap- 

 paratus shewing sub-divi- 

 sion of dark-bordered fibre 

 at centre, a, and periphery. 6. 



Diagram to sho\v po-ssible relation of fibres from caudate nerve cells of the spinal cord, 

 * Vires from c^lls in eanfilia, as, for example, the ganglia on the posterior roots, a is 



*ed to be <~ry ; the cell above 6 one of those in the finnglion. The 



caudate cells resemble those in rbe rey matter of the cord, medulla oblongata, and brain. 



Fist, 4C3. 



trn of tbree p^p-.l'.re Irom the frog's toniue. to show the irranAen 

 'Le neiv- r.Ui'-'s Each papilla is coun^ct^d with its neighbours .* 

 sural fibres, as well as with the nerv. 



am to show course of nerve 

 fibres in branch trunks. 



[To follow PL. LXV. 



