CHAP. XXIII.] 



OF THE HUMAN BRA1X. 



437 



a. Relation of the Cerebral Peduncles to the Central 

 Ganglia : Thalami and Corpora Striata. According to 



FIG. 156. Central Ganglia of the Brain, together with the Cerebellum and its 

 Superior Peduncles. (Sappey, after Hirschfeld.) 1, Corpora quadrigemina ; 

 2, Valve of Vieussens ; 3, superior Cerebellar Peduncles; 4, upper part of the 

 middle Cerebellar Peduncles ; 5, upper part of the Cerebral Peduncles ; 6, lateral 

 groove of the isthmus; 7, ribbon of Reil ; 8, cord extending from the 'testis' to 

 the internal ' geniculate body ' ; 9, column of the Valve of Vieussons ; 10, grey 

 lamella of the same ; 11, posterior fibres of the triangular bundle of the isthmus ; 

 12, upper fibres of middle Cerebellar Peduncles ; 13, white centre of the Cerebellum; 

 14, grey rhomboidal nucleus of Cerebellum \ 15,' posterior commissure ' of Cerebrum ; 

 16, peduncles of the ' Pineal body ' ; 17, ' Pineal body ' turned forwards so as to show 

 last two structures ; 18, posterior tubercles of the Thalami ; 19, anterior tubercles of 

 same ; 20, Tenia semicircularis ; 21, veins of the Corpus Striatum ; 22, anterior 

 pillars of the Fornix, between which the ' anterior commissure ' is seen ; 23, Corpus 

 Striatum ; 24, Septum Lucidum and ' fifth ventricle.' 



the above-quoted anatomist, " The Thalamus and Cor- 



