430 JOHN H. STOKES 



nucleus, while the close association of the nucleus itself with 

 the structures of the cerebellar base can be inferred from the prox- 

 imity of the fibers of the superior brachium, originating in the 

 nucleus fastigii. 



Of .the special features of this section, the one marked A is taken 

 up with the next figure. B is also better shown in that connec- 

 tion. Particular attention is however, directed to C. This band 

 of fine parallel fibers is a conspicuous object in five sections in 

 this region, and can be made out in two or three more. In two 

 or three of the best sections it can be traced definitely into the 

 substance of the ventral cochlear nucleus, separating into fine 

 strands in the nuclear mass. Ultimate origins or terminations 

 could not be determined. The fibers follow the curve shown in 

 the figure cerebralward scattering fan-like among the bundles and 

 grey matter of the superior vestibular nucleus and the nucleo- 

 cerebellar tract. The close association of this group of fibers 

 with other more doubtful ones apparently forming cerebralward 

 connections of the vestibular makes interpretation of them diffi- 

 cult, and in any case Golgi analysis would appear essential. In 

 these preparations the group, however, presents every appearance 

 of a cochlear-vestibular connection possibly uniting the ventral 

 nucleus of the former with the superior of the latter. While a 

 connection of the ventral cochlear nucleus with the cerebellum 

 or midbrain by this route might be considered among the possi- 

 bilities, such connection is hardly apparent in these sections. In 

 the opinion of the writer, this fiber group corresponds to the one 

 marked B in fig. 6, and should not be confused with the possible 

 cochlear-cerebellar group mentioned under fig. 7, page 426, which 

 lies lateral to it. See also fig. 6, where the latter group lies close 

 against the medial surface of the restiform body. 



Fig. 11. Series B, slide 79, section 2. This section is ventral 

 to the one shown in the preceding figure, and with the 

 following one is given primarily for the sake of certain special 

 features of the vestibular system. The two parts of Deiter's 

 nucleus are well shown, the large ganglion cells being inserted 

 somewhat schematically in black. The anatomical connection 

 of the two parts by scattered cells among the strands of the spinal 



