The brain as an organ of mind . he parasitic Cyclostomcs, HI theH, spinal cord; x, Sturgcou, aud also iu Polypterus and Le- olfactory nerve, di- . viding and penetrat- pidosncu, where it appears merely as a il.:^t;r\soi: si^^^Ple b^-i^^g^ ^^ commissure, crossing the anterior and upper part of the medulla. In most osseous Fishes it is larger, and projects backwards over the medulla in the form of a Chap. VIIL) AND OF AMPHIBIA. 115 smooth, convex, semi-ovoid, or tongue-like body (fig. 49, d).According to Professor Owen, the cerebellum is * very smallin the lazy Lump-fish, and extremely larg
The brain as an organ of mind . he parasitic Cyclostomcs, HI theH, spinal cord; x, Sturgcou, aud also iu Polypterus and Le- olfactory nerve, di- . viding and penetrat- pidosncu, where it appears merely as a il.:^t;r\soi: si^^^Ple b^-i^^g^ ^^ commissure, crossing the anterior and upper part of the medulla. In most osseous Fishes it is larger, and projects backwards over the medulla in the form of a Chap. VIIL) AND OF AMPHIBIA. 115 smooth, convex, semi-ovoid, or tongue-like body (fig. 49, d).According to Professor Owen, the cerebellum is * very smallin the lazy Lump-fish, and extremely large in the activeand warm-blooded Tunny. It attains its highest develop-ment, however, in Sharks (fig. 48, c). In these most activeand predaceous fishes the cerebellum not only covers muchof the medulla, but advances forwards over the optic lobes,and the extent of its surface is further increased by theexistence of numerous superficial folds or front of the cerebellum are two rounded ganglia known Fig. 48. Fia. 49.
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Keywords: ., bookcentury1, booksubjectbrain, booksubjectpsychologycomparative
