. Animal and vegetable physiology, considered with reference to natural theology. Biology; Physiology; Plant physiology; Natural theology. NERVOUS SYSTEM OF VERTEBRATA. 393 T. In the Mammalia, as the Lion (Fig. 4G0,) they are lodged quite in the interior of the organ, and concealed hy the expanded hemispheres (h;) their position only being marked by the same letter (t.) These changes are conse- quences of the increasing development of the brain, com- pared with that of the cavity in which it is contained, re- quiring every part to be more closely packed; thus, the lay- ers of the hemispheres i
. Animal and vegetable physiology, considered with reference to natural theology. Biology; Physiology; Plant physiology; Natural theology. NERVOUS SYSTEM OF VERTEBRATA. 393 T. In the Mammalia, as the Lion (Fig. 4G0,) they are lodged quite in the interior of the organ, and concealed hy the expanded hemispheres (h;) their position only being marked by the same letter (t.) These changes are conse- quences of the increasing development of the brain, com- pared with that of the cavity in which it is contained, re- quiring every part to be more closely packed; thus, the lay- ers of the hemispheres in INIammalia are obliged, from their great extent, to be plaited and folded on one another, pre- senting at the surface curious windings, or convolutions, as they are called (seen in Fig. 456,) which do not take place in the hemispheres of the inferior classes. The foldings of the substance of the cerebellum produce, likewise, even in birds, transverse furrows on the surface; and from the in- terposition of a substance of a gray colour between the la- minae of the white medullary matter, a section of the ce- rebellum presents the curious appearance (seen in Fig. 459,) denominated, from its fancied resemblance to a tree, the Jirhor Vitx, 461 .'. Thus far we have followed an obvious gradation in the development and conccutration of the dilierent parts of the Vol. II. 50. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Roget, Peter Mark, 1779-1869. Philadelphia, Carey, Lea & Blanchard
Size: 1618px × 1544px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury18, booksubjectnaturaltheology, booksubjectphysiology
