. Text-book of normal histology: including an account of the development of the tissues and of the organs. HISTOLOGY. present, little is definitely established. The nucleolus is highlyrefracting, and, when subjected to appropriate stains, takes on acolor differing from both nucleus and protoplasm, suggesting, atleast, a distinct chemical condition. This body lies closely approxi-mated to, but separated from, the nuclear fibrils, being an indepen-dent member of the cell; this fact is especially evident in such ele-ments as ganglionic nerve-cells, or ova, where the nucleolus appearswith exceptio
. Text-book of normal histology: including an account of the development of the tissues and of the organs. HISTOLOGY. present, little is definitely established. The nucleolus is highlyrefracting, and, when subjected to appropriate stains, takes on acolor differing from both nucleus and protoplasm, suggesting, atleast, a distinct chemical condition. This body lies closely approxi-mated to, but separated from, the nuclear fibrils, being an indepen-dent member of the cell; this fact is especially evident in such ele-ments as ganglionic nerve-cells, or ova, where the nucleolus appearswith exceptional distinctness. Its disappearance during the divisionof the nucleus, and its subsequent reappearance within the newly-formed nuclei, lend weight to the supposition that the nucleolus playsbut a subordinate 7-6le in the life-history of the cell; its true value,however, has yet to be determined. In addition to the parts of the cell generally recognized, recentinvestigators have described the occasional presence of an irregularlyspherical body, lying within the protoplasm in the vicinity of the Fig.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphiajblipp
