CONNECTION OF FIBROUS AND VESICULAR SUBSTANCES. 



211 



vesicular nervous elements, in the nervous centres, has not yet been tho- 

 roughly elucidated. It seems certain, on the one hand, that some of the 



[Fig. 116. 



[Fig. 117. 



A. Blending; of the vesicular and fibrous nervous 

 matter in the dentate body of the cerebellum: a, 

 Ganglion globule, with its nucleus and nucleolus. 

 b. Nerve-tube, slightly varicose, in close contact 

 with the ganglion globule, b'. Smaller nerve-tubes. 

 These parts all lie in a finely granular matrix in- 

 terspersed with nuclei, c. B. Vesicular and fibrous 

 matter of the lamince of the cerebellum, a. Gan- 

 glion globule, b. Very minute nerve-tubes tra- 

 versing a finely granular matrix, in which are 

 numerous rounded nuclei, c.] 



From the Gasserian ganglion of an adult: a. a. 

 Ganglion globules with their nucleus, nucleated 

 capsule, and pigment, t. Tubular fibres, running 

 among the globules in contact with their capsule. 

 . Gelatinous fibres also in contact with the gan- 

 glion globules. Magnified 320 diameters.] 



fibres come into direct continuity with caudate prolongations of the ganglionic 

 corpuscles, and may thus be said to originate from them. This appears to 



Fig. 118. 



Primitive fibres and ganglionic vesicles. A, from sympathetic ganglion ; * a separate vesicle, show- 

 ing its pellucid nucleus and nucleolus. B, from grey substance of human cerebellum ; a, b, plexus of 

 primitive fibre? ; c, nucleated globules ; * a separate globule from human Gasserian ganglion. Magni- 

 fied 350 diameters. 



be especially the case, with regard to the class of fine fibres ( 244). On the 



