Fig. 34. DISSECTION TO SHOW THE COURSE OF THE ANTERIOR COMMISSURE. 



c, The rostrum of corpus callosum. (See Fig. 38.) The letter lies in the longitudinal fissure. 

 b, b, Fibres of anterior commissure. Their course is outward from the middle line, then 

 downward and backward underneath the lenticular nuclei (which have been removed) to 

 terminate in the roof of the middle horn of the lateral ventricle, c, The third ventricle. 



d, Internal capsule, now the crusta of crus cerebri. <?, Locus niger. f, Red nucleus, g; 

 Tegmentum. h, Aqueduct of Sylvius. /', Lingula resting upon the valve of Vieussens. 

 j, Fourth nerve. 



