. The cell in development and inheritance. Cells. Fig. 59. — Young ovarian eggs, showing yolk-nuclei and deposit of deutoplasm. A. Myriapod (Geophili(s) with single " yolk-nucleus " (perhaps an attraction-sphere) and scat- tered deutoplasm. [Balbiani.] B. The same, with several yolk-nuclei, and attraction-sphere, s. [] C. Fish {ScorpcEira), with deutoplasm forming a ring atiout the nucleus, and an irregular mass of " eliminated chromatin " (? yolk-nucleus). [Van Bambeke.] D. Ovarian egg of young duck {3 months) surrounded by a follicle, and containing a " yol
. The cell in development and inheritance. Cells. Fig. 59. — Young ovarian eggs, showing yolk-nuclei and deposit of deutoplasm. A. Myriapod (Geophili(s) with single " yolk-nucleus " (perhaps an attraction-sphere) and scat- tered deutoplasm. [Balbiani.] B. The same, with several yolk-nuclei, and attraction-sphere, s. [] C. Fish {ScorpcEira), with deutoplasm forming a ring atiout the nucleus, and an irregular mass of " eliminated chromatin " (? yolk-nucleus). [Van Bambeke.] D. Ovarian egg of young duck {3 months) surrounded by a follicle, and containing a " yolk- nucleus,";'.^/. [Mertens.] Thus Jordan ('93) states that in the newt {Dicinyctylns) the yolk may be first formed at one side of the egg and afterwards spread to other parts, or it may appear in more or less irregular separate patches which finally form an irregular ring about the nucleus, which at this period has an approximately central position. In some amphibia the deutoplasm ap])ears near the periphery and advances inwards. 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
