168 



THE FROG 



direction ; the grey matter contains numerous " multi- 

 polar" nerve-cells, each giving off numerous dendrons 



i 



ne 

 ms 



713C' 



rns 



FIG. 



r. 54. A, nerve-cell from the grey matter of the spinal cord of a Frog, and the 

 nerve-fibre arising from it (neurolemma not shown) ; B, cell from the ganglion of 

 a dorsal root, (x about 200.) 



j. neurolemma; MM. nucleus ; nx. neuraxis ; ms. medullary sheath. (After 

 u^,,,r.^ \ 



. 

 Howes.) 



and one axon, which is continuous with a neura 

 (Figs. 48 and 54, A) ; they are enclosed in a tissue 

 formed partly of the axis-fibres of nerves which enter 



