TROGLOD^TES NIGER, THE CHIMPANZEE 



581 



I lu' siirtacc cK'itiarcat ions ot the ()li\c' arc well shown l)v tlu' prt'smtv of a 

 marked prt'oli\ arv sulriis. The inlrrior oli\e itscll has nicreasccl ni j^ronu- 

 ncncc, not only due to increments m its actual cell-eontainrng substance, but 



1 IG. 258. CHIMPANZEE. LE\ EL THHOUGll MIL MIUULL Ul MIE IM EKIUK OLI\ E. 

 CM, Column of Burclrich; 00, Dorsal Accessory Olive; fle, Dorsal Spinocerebellar Tract; cow. Ventral Spino- 

 cerebellar Tract; Hti., Spino-olivary Tract of Ilelweg; 10, Inferior Olive; mf. Mesial Fillet; N», Nucleus of 

 Burdacli; Mil., Nucleus of Blunienau; no. Nucleus of Goll; nhv, Hypoglossal Nucleus; nr, Nucleus of Ro- 

 lando; NVD, Dorsal Vagal Nucleus; si 2, Hypoglossal Nerve; 1>D, Predorsal Bundle; pl, Posterior Longitudinal 

 Fasciculus; py. Pyramid; ref, Reticular Formation; Ksr, Rubrospinal Tract; spt. Spinothalamic Tract; 

 1 KD, Descending Trigeminal Tract; vo. Ventral Accessory Olive. (Accession No. 15-. Section 150. Actual 

 Size 15 X 12 mm.] 



