

THE CEREBELLUM. 



vertical sections of the hemisphere. Two of these intralobar fissures occur in the 

 posterior crescentic (clival) lobe and one or two in the anterior crescentic (culmi- 



A. 



S.pr.-cl. 7 



* i t-.m. 



Fig. 58. VIEWS OF THE UPPER (A) AND LOWER (B) SURFACES OF THE CEREBELLUM, NATURAL SIZE. 



FROM PHOTOGRAPHS. (E.A.S.) 



In A. l.c, lobulus centralis ; a.l.c, ala lobuli centralis ; TO, culraen monticuli ; l.m, lobus 

 culminis ; d, clivus ; l.d, lobus clivi ; l.eac, lobus cacuminis ; l.t, lobus tuberis ; s.p.-c, sulcus post- 

 centralis ; s.pr.-cl, sulcus preclivalis ; s.p.-cl, sulcus postclivalis ; f.h, f.h, fissura horizontalis magna. 



In B. . I, lingula ; Z.c, lobulus centralis; a.l.c, ala lobuli centralis; s.p.-c, sulcus postcentralis ; 

 v.m.s, velum medullare superius ; p.s.c, pedunculus cerebelli superior ; p.c, peclunculi cerebelli medius 

 et inferior ; n, nodulus ; v.m.i, velum medullare inferius ; p.fl, pedunculus flocculi ; fl, flocculus ; u, 

 uvula ; am, amygdala ; py, pyramis ; l.biv, lobus biventralis ; t.v, tuber valvulse seu posticum; l.t, 

 lobus postero-inferior ; l.gr', lobulus gracilis anterior ; l.gi' 2 , lobulus gracilis posterior ; s.pr.-gr, sulcus 

 pregrrtcilis ; s.i.-gr, sulcus intra-gracilis ; s.p.-gr, sulcus postgracilis ; f.h, fissura borizontalis magna. 



The vallecula has been somewhat opened out to display the parts of the lower worm. 



nate) (fig. 59). The laminae and fissures of the upper surface all have a subparallel 

 transverse direction, curving forwards as they traverse the hemisphere to lose them- 

 selves at the antero-lateral border in the great horizontal fissure. 



