. The cell in development and inheritance. Cells. C. D P'g- 7- — Various cells showing the typical parts. A. From peritoneal epithelium of the salamander-larva. Two centrosomes at the right. Nucleus showing net-knots. [P'LEMMING.] B. Spermatogonium of frog. Attraction-sphere (aster) containing a single centrosome. Nucleus with a smgle |ilasniosome. [Hermann.] C. Spinal ganglion-cell of frog. Attraction-sphere near the centre, containing a single centro- some with several centrioles. [Lenhossek.] D. Spermatocyte of Proleus. Nucleus in the spireme-stage. Centrosome single; attraction- sphere con
. The cell in development and inheritance. Cells. C. D P'g- 7- — Various cells showing the typical parts. A. From peritoneal epithelium of the salamander-larva. Two centrosomes at the right. Nucleus showing net-knots. [P'LEMMING.] B. Spermatogonium of frog. Attraction-sphere (aster) containing a single centrosome. Nucleus with a smgle |ilasniosome. [Hermann.] C. Spinal ganglion-cell of frog. Attraction-sphere near the centre, containing a single centro- some with several centrioles. [Lenhossek.] D. Spermatocyte of Proleus. Nucleus in the spireme-stage. Centrosome single; attraction- sphere containing rod-shaped bodies. [HERMANN.] under certain conditions from one to the other, and that both are to be regarded as specially differentiated areas in that basis.^ The terms ^ The fact tliat the nucleus may move actively throui^h the cvtoplasm, as occurs iluring the fertilization of the egg and in some other cases, seems to show that the morphological continuity may at times be 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 : The Macmillan company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcells, bookyear1896
