HUMAN AND MAMMALIAN. 



19 



longitudinal bundles (h), which latter are now surrounded by a network of fibres 

 formed from transverse fibres loopmg around the fasciculi, together with cell pro- 



Fig. 2. 



Posterior coriiu from the spinal cord of the cat, near the second cervical nerve. — a, Cell group representing the 

 anterior pt.rtion of the posterior vesicular column, and constituting the principal nucleus of the spinal 

 accessory ; b, longitudinal fasciculi ; c, central canal ; d, cell groups representing the posterior portion of the 

 posterior vesicular column, from which the restiform nucleus is developed ; /, tractus inte medio-lateralis ; 

 r, raphfe. 



Fig. 3. 



Posterior cornu from the spinal cord of the cat, a little higher than the preceding, the letters corrseponding witli 

 fig. 2 ; XI, root of the spinal accessory. 



