40 research outputs found

    Studies on germ cells. I. The history of the germ cells in insects with special reference to the Keimbahn-determinants. II. The origin and significance of the Keimbahn-determinants in animals

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    No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/50235/1/1050250302_ftp.pd

    Künstliche Parthenogenese

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    Petrunkewitsch, A. Künstliche Parthenogenese, 1904 Alexander Ivanovitch Petrunkevitch (1875-1964) was a Russian arachnologist. From 1910 to 1939 he described over 130 spider species. One of his most famous essays was The Spider and the Wasp.https://digitalcommons.rockefeller.edu/pamphlets-offprints-and-reprints/1071/thumbnail.jp

    August Weismann and Ferdinand Dickel: Testing the Dzierzon System

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