. On the anatomy of vertebrates [electronic resource] . d 4 oz. 12 dr. in the When the under surface is exposed by removing or reflectingthe macromyelon, as in fig. 63, the middle lobe, P, is seen at thebottom of a valley (vallecula, Haller, v) dividing the hemispheres, 1 CIl. 2 Jii. and xlix. p. 4 (1862). CEREBELLUM OF MAMMALIA. 93 the convexities of which rest in the occipital fossa?. This surfaceof the middle lobe (f inferior vermiform process, Anthropotomy)is transversely folded or ringed. The broader and more promi-nent folds form the 4 pyramid, ib. P; the succeeding narrowerfold
. On the anatomy of vertebrates [electronic resource] . d 4 oz. 12 dr. in the When the under surface is exposed by removing or reflectingthe macromyelon, as in fig. 63, the middle lobe, P, is seen at thebottom of a valley (vallecula, Haller, v) dividing the hemispheres, 1 CIl. 2 Jii. and xlix. p. 4 (1862). CEREBELLUM OF MAMMALIA. 93 the convexities of which rest in the occipital fossa?. This surfaceof the middle lobe (f inferior vermiform process, Anthropotomy)is transversely folded or ringed. The broader and more promi-nent folds form the 4 pyramid, ib. P; the succeeding narrowerfolds, the 6 uvule, ib. n. The extremity of the vermiform processwhich projects into and closes the fourth ventricle, inferiorly, isthe 6 nodule. On the inferior surface of the e hemispheres An-thropotomists define, with Reil,1 biventral, fig. 63, b,( slender,, and (post-inferior lobes, d. The smaller group of folds is theiamygdala, ib. a ; the still smaller group, f, is the anterior surface of the cerebellum, seen in connection with 047. Anteroinferior view of epencephalon, Man. xxy. the macromyelon, as in fig. 64, shows the semilunar fissure, h,penetrated by the formative and commissural columns, i : the rela-tive position of the i flocculus, n, is here best shown; the macro-myelon passes into myelon at m. On the upper surface of thecerebellum, fig. 65, its most prominent part is that of the middlelobe, called * superior vermiform process, v: the hemispheres arealmost flat: they are here subdivided into the (square lobe, ib. a,and the post-superior lobe, P. The lateral lobes exceed the 1 XLIV. 94 ANATOMY OF VERTEBRATES. middle lobe in anteroposterior extent, leaving an anterior or6 semilunar fissure, and a narrower 6 posterior notch, ib. n, thegroups of lamellai bounding which are called, by some, 4 post-inferior lobes. The hemispheres are commonly but not constantlysymmetrical; both these and the middle lobe consist of numerouslamellae, of white covered by grey
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