Summary
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1.
The indifferent interstitial cells divide by mitosis.
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2.
This mitosis occurs within the nuclear area but not inside the nuclear membrane.
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3.
Centrioles are present and appear to be enclosed within the nuclear membrane during the early telephase.
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4.
Various fixing agents have great effect upon the chromosomes, causing them to shrink from their V-shape to rather rod-like structures.
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5.
The indifferent cells of the endoderm divide in a manner similar to the indifferent cells of the ectoderm.
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I wish to thank Dr.Max Hartman, of the Kaiser Wilhelm-Institute for Biology, Berlin-Dahlem, Germany, and Dr.Faure Fremiét, of the College of France, Paris, for their kind aid and criticism while preparing this paper as a National Research Fellow.
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McConnell, C.H. Mitosis in hydra. W. Roux’ Archiv f. Entwicklungsmechanik 135, 202–210 (1936). https://doi.org/10.1007/BF02569033
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DOI: https://doi.org/10.1007/BF02569033