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  1. August Friedrich Leopold Weismann FRS (For), HonFRSE, LLD (17 January 1834 – 5 November 1914) was a German evolutionary biologist. Fellow German Ernst Mayr ranked him as the second most notable evolutionary theorist of the 19th century, after Charles Darwin. Weismann became the Director of the Zoological Institute and the first Professor of Zoology at Freiburg .

  2. Jun 11, 2018 · WEISMANN, AUGUST FRIEDRICH LEOPOLD. ( b. Frankfurt am Main, Germany, 17 January 1834; d. Freiburg im Breisgau, Germany, 5 November 1914), zoology. Weismann’s most influential contribution to biological thought was his theory of the continuity of the germ plasm, an explanation of heredity and development. He maintained that the germ plasm, the ...

  3. germ-plasm theory, concept of the physical basis of heredity expressed by the 19th-century biologist August Weismann ( q.v. ). According to his theory, germ plasm, which is independent from all other cells of the body (somatoplasm), is the essential element of germ cells (eggs and sperm) and is the hereditary material that is passed from generation to generation. Weismann first proposed this ...

    • The Editors of Encyclopaedia Britannica
  4. August Weismann was born in 1834 into what is commonly called the “Bildungsburgertum,” or educated middle class, in the free city of Frankfurt on the Main, some thirty kilometers up river from where the Main flows into the Rhine. The Main valley in itself was highly agricultural, and heavily cultivated according to contemporary accounts.

  5. Jun 3, 2015 · A monumental study of an important but surprisingly little-studied biologist, August Weismann represents half a century of scholarly investment by historian of science Frederick Churchill ...

    • Jane Maienschein
    • 2015
  6. August Friedrich Leopold Weismann. 1834-1914. German Biologist. A ugust Weismann, an early adherent to Darwin's theory of evolution, became famous for his studies on heredity. He denied that organisms could inherit acquired characteristics, touching off an important debate in the late nineteenth century between his own school, neo-Darwinism ...

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  8. Apr 19, 2023 · The German biologist August Weismann (see accompanying Article-in-Box for a biographical sketch) was one of the most important figures in biology during those eventful decades and is considered by many to be the most significant evolutionist in the first fifty years after Darwin.

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