. The cell in development and inheritance. Cells. a. The nuclear Dinnbranc, a well-defined delicate wall which Fig. 13. — Two nuclei from tl;e crypls of Lieberkuhn in the salamander. [Heidenhain.] The character of the chromatin-network •in u (basichromathi)\s7iZC\xx2.\€\ys\\o\\T\. The upper glV'GS the nUCleUS a Sharp COUtOUr nucleus contains three plasmosomes or true and differentiates it clcarly from nucleoli; the lower, one. A few fine linin-threads {oxychromatin) are seen in the upper nucleus running off from the chromatin-niasses. The clear spaces are occupied by the ground-sub- stance. th
. The cell in development and inheritance. Cells. a. The nuclear Dinnbranc, a well-defined delicate wall which Fig. 13. — Two nuclei from tl;e crypls of Lieberkuhn in the salamander. [Heidenhain.] The character of the chromatin-network •in u (basichromathi)\s7iZC\xx2.\€\ys\\o\\T\. The upper glV'GS the nUCleUS a Sharp COUtOUr nucleus contains three plasmosomes or true and differentiates it clcarly from nucleoli; the lower, one. A few fine linin-threads {oxychromatin) are seen in the upper nucleus running off from the chromatin-niasses. The clear spaces are occupied by the ground-sub- stance. the surrounding cytoplasm. This wall sometimes stains but very slightly, and can scarcely be dif- ferentiated from the outlying cytoplasm. In other and perhaps more frequent cases, it approaches in staining capacity the chromatin. b. The nuclear reticulum. This, the most essential part of the nucleus, forms an irregular branching network or reticulum which con- sists of two very different constituents. The first of these, forming the general protoplasmic basis of the nucleus, is a substance known as //;//;/ 1 Calkins, '98, 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 Wilson, Edmund B. (Edmund Beecher), 1856-1939. New York Macmillan
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcells, bookyear1906
