. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . Fig. 344.—A, C, the brain of a lizard (Psammosaurus Bengalensis), and B, D, of abird (Meleagris gallopavo, the turkey), drawn as if they were of equal lengths(after Huxley). A. B, viewed from above; C, D, from the left side. Olf, olfactorylobes; Pn, pineal gland; Hmp, cerebral hemispheres; Mb, optic lobes of the mid-brain; Cb, cerebellum; M. O, medulla oblongata; ii, iv, vi, second fourth, andsixth pairs of cerebral nerves; Py, pituitary Fri;. 81). —Brains of a lizard (Psammosau
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . Fig. 344.—A, C, the brain of a lizard (Psammosaurus Bengalensis), and B, D, of abird (Meleagris gallopavo, the turkey), drawn as if they were of equal lengths(after Huxley). A. B, viewed from above; C, D, from the left side. Olf, olfactorylobes; Pn, pineal gland; Hmp, cerebral hemispheres; Mb, optic lobes of the mid-brain; Cb, cerebellum; M. O, medulla oblongata; ii, iv, vi, second fourth, andsixth pairs of cerebral nerves; Py, pituitary Fri;. 81). —Brains of a lizard (Psammosaurns Benr/alensifs) and of a bird {Meleagrisgallopava) in longitudinal and vertical section. The upper figure represents the THE BRAIN. 489 lizards brain; the lower, that of the bird (after Huxley and Carus). Letters as inthe preceding figure, except L. t, lamina terminaUs, or anterior wall of the thirdventricle; /. .)/, foramen of Munro; a, anterior commissure; Th. E, thalamen-cephalon; s, soft commissure; p, posterior commissure; iv, indicates the exactpoint of exit of the fourth pair from that part of the brain which answers to thevalue of Vieussens. and especially of man, becomes apparent. Depth of Assuringis, however, of more importance than multiplicity of furrows ;and it may be observed that intelligence is not always in pro-portion to the extent to which the cerebral surface is brokenup into fissures and convolutions. Tbe depth of the gray mat-ter is also very variable, and seems to bear an important rela-tion to psychic development. M
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1890
