. The elements of embryology. Embryology; Embryology. 386 DEVELOPMENT OF ORGANS IN MAMMALIA. [ Section through the Brain and Olfactory Organ of an Embryo of Scyllium. ch. cerebral hemispheres; olfactory vesicle; olf. olfactory pit; Sch. Schneiderian folds ; 1. olfactory nerve (the reference line has been accidentally carried through the nerve so as to appear to indicate the brain); pn. anterior prolongation of pineal gland. histological characters of the parts of the brain behind the cerebral hemispheres to those of the spinal cord is very conclusively shewn by the examination of a
. The elements of embryology. Embryology; Embryology. 386 DEVELOPMENT OF ORGANS IN MAMMALIA. [ Section through the Brain and Olfactory Organ of an Embryo of Scyllium. ch. cerebral hemispheres; olfactory vesicle; olf. olfactory pit; Sch. Schneiderian folds ; 1. olfactory nerve (the reference line has been accidentally carried through the nerve so as to appear to indicate the brain); pn. anterior prolongation of pineal gland. histological characters of the parts of the brain behind the cerebral hemispheres to those of the spinal cord is very conclusively shewn by the examination of any good series of sections. In both brain and spinal cord the white matter forms a cap on the ventral and lateral parts some considerable time before it extends to the dorsal surface. In the medulla oblongata the white matter does not eventually extend to the roof owing to the peculiar degeneration which that part undergoes. In the case of the fore-brain the walls of the hemi- spheres become first divided (KoUiker) into a superficial thinner layer of rounded elements, and a deeper and thicker epithelial layer, and between these the fibres of. 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 Foster, M. (Michael), Sir, 1836-1907; Balfour, Francis M. (Francis Maitland), 1851-1882; Sedgwick, Adam, 1854-1913; Heape, Walter, 1855-1929. London : Macmillan and Co.
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Keywords: ., bookcentury1800, bookdecade1, booksubjectembryology, bookyear1883
