THE NERVOUS SYSTEM. 



305 



The mesial fillet likewise is continued upward from the pons 

 in the tegmentum of the crura. The course of the fibres has 

 been described. 



The crusta of the crura contains the pyramidal fibres and 

 the cortico-pontine fibres. 



'56p.ne 

 Col.fo, 



Ani". com 

 T.nucl, caud.- 



hai. 



St. 

 Pair. -. 



Post.co 



Firnb 



--Hipp. 



Post cor. 



PIG. 138. 



Interior of mesencephalon. For., fornix; Sep. pel., septum pellu- 

 cidum; Col. for., column of fornix; H. nucl. caud., head of nucleus 

 caudatus; Ant. com., anterior commissure; T. nucl. caud., tail of 

 nucleus caudatus; Mas. int. inassa intermedia; Thai., thalamus; St. 

 term., stria terminalis; Pulv., pulvinar; Ant. col., anterior colliculus; 

 Post, col., posterior colliculus; IV, Trochlear nerve; Ant. cor., anterior 

 cornu of lateral ventricle; A. 1. int. cap., anterior limb of internal 

 capsule; Ext. cap., external capsule; Isl., island of Reil; Nucl. lent., 

 nucleus lentiformis; Glaus., claustrum; P. 1. int. cap., posterior limb 

 of internal capsule; Hipp., hippocampus; Post, cor., posterior cornu of 

 lateral ventric 1 'After Landois.) (Whitchcad.) 



