376 



THE INTERMEDIATE PRIMATES 



the mesial and lateral groups of the cerebellar nuclei are the massive bundles 

 of the juxtarestiform body. The roof of the fourth ventricle is formed by 

 the nuclear substance of the cerebellar nuclei. Its floor still contains a large 



FIG. 176. MACACUS. LE\'EL OF THE CEREBELLAR NUCLEI. 



CEBL, Cerebellum; GOW, Ventral Spinocerebellar Tract; icp, Inferior Cerebellar Peduncle; 10, Inferior Olive; 

 MF, Mesial Fillet; nd. Nucleus of Deiters; ndt. Cerebellar Nuclei, Lateral Group; nfg, Cerebellar Nuclei, 

 Mesial Group; nr. Nucleus of Rolando; NSC, Schwalbe's Nucleus; n8. Auditory Nerve; pd, Predorsal 

 Bundle; pl. Posterior Longitudinal Fasciculus; py. Pyramid; ref. Reticular Formation; trd. Descending 

 Trigeminal Tract; ver, Cerebellar Vermis; ven 4, Fourth Ventricle. (Accession No. 149. Section 190. Actual 

 Size 18 X 15 mm.] 



representation of Schwalbe's and Deiters' nuclei (NSc, ND). The other 

 elements at this level are indicated by letters in the caption. 



