mass, the vermis (v.cbm.), and it also has lateral lobes (l.l.),
prolonged into flocculi (f.cbm.), which lastare -em-bedded in pits, [in]
the periotic bone, and on that account render the extraction of the
brain from the cranium far more difficult than it would otherwise be.
The roof of the hind-brain, before and behind the cerebellum,
consists of extremely thin plates of nervous matter. Its floor is greatly
thickened to form the mass of the medulla, and in front a great
transverse track of fibres is specialized, the pons Varolii (p.V.). Its
cavity is called, the fourth ventricle.