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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901. Excerpt:... veins (V. hep.) which enter the lower portion of Ihe sinus venosus on its posterior side. E.--THE NERVOUS SYSTEM. We shall commence our description of the nervous system with the brain and spinal cord, then proceeding to the cranial and spinal nerves, and finally to the sympathetic nervous system. 1.--The Bkain And Spinal (jokd. (Figs. 28,-'A), 31). The brain of the Plaice may be conventionally divided into four regions, including the following structures:--A. Hind-Brain.--This comprises the medulla oblongata, which itself includes many structures that can only be regarded as the continuations of corresponding ones in the spinal cord, and the cerebellum. The latter consists of a body and the anterior valvula cerebelli. B. Mid-Brain.--Formed by a base (crura cerebri) and side wall, and the tectum opticum or tectum mesencephali (optic lobes). C. 'Tween-Brain.--Represented by three parts: (1) the epithalamus (epiphysis generally and the ganglia habenulae); (2) the thalamus (optic thalami--thalamencephalon); (3) the hypothalamus (corpus geniculatum, The following works will be found to contain references either to the brain of the Plaice or to allied Pleuronectids:--Cattie, Arch. Biol., iii., p. 150; le Roux, "Recherch. Syst. Nerveux Teleosteens," Caen, 1887; Mayne, "Optic Nerves," Todd's Cyclopaedia, part xxvi.; Malme, Bihang K. Svens. vet.-akad Haudlingar, xvii.; Mayer, Verhaud. K. Leop.-Carol., xxx.; and Steiner, " Entstehung d. asymmetrischen Baues der Pleuronectiden," 1886; a recent important work, by J. B. Johnston, on the brain of Acipenser (Zool. Jahrb., Abth. Morph., xv.), may be used as a starting point in studying the brain of Fishes in detail. corpus mammillarc, infundihulum. lobi iuferiorcs, sacctu vasculosus and pituitary body).. Fore-Brain.--...