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  1. Befruchtung der Blumen durch Insekten. : [Supplementary material in Charles Darwin's copy].
    By: Darwin, Charles, - Müller, Hermann.
    Contributed by: Cambridge University Library
    BHL Collections: Charles Darwin's Library
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  2. Befruchtung der Blumen durch Insekten.
    By: Müller, Hermann.
    Publication info: Leipzig :Wilhelm Engelmann,1873.
    Contributed by: Cambridge University Library
    BHL Collections: Charles Darwin's Library
    View Book