Archive image from page 226 of Cytology, with special reference to. Cytology, with special reference to the metazoan nucleus cytologywithspec00agar_0 Year: 1920 VII POLYPLOID NUCLEI IN PROTISTA 211 Fig. 89. Nuclear multiplication in AulacantJia. (Borgert, , 1901, and A ., 1909.) A-C, stages in the division of the primary nucleus during binary fission of the animal; D-G, preliminary stages in gamete formation. A, resting nucleus ; B, mitosis, equatorial plate ; C, portion of an anaphase shown on a larger scale ; D, formation of secondary nuclei (the little dark specks in the cyto

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Archive image from page 226 of Cytology, with special reference to. Cytology, with special reference to the metazoan nucleus cytologywithspec00agar_0 Year: 1920 VII POLYPLOID NUCLEI IN PROTISTA 211 Fig. 89. Nuclear multiplication in AulacantJia. (Borgert, , 1901, and A ., 1909.) A-C, stages in the division of the primary nucleus during binary fission of the animal; D-G, preliminary stages in gamete formation. A, resting nucleus ; B, mitosis, equatorial plate ; C, portion of an anaphase shown on a larger scale ; D, formation of secondary nuclei (the little dark specks in the cytoplasm) from the primary nucleus ; E, the primary nucleus is almost used up in the production of the secondary nuclei; F, a few secondary nuclei under a higher magnification, showing the single chromatin thread in each ; G, secondary nuclei in mitosis.

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