Abstract
THE observations of my son Francis on the contractile filaments protruded from the glands of Dipsacus,1 offer so new and remarkable a fact in the physiology of plants, that any confirmation of them is valuable. I hope therefore that you will publish the appended letter from Prof. Cohn, of Breslau, whom every one will allow to be one of the highest authorities in Europe on such a subject. Prof. Cohn's remarks were not intended for publication, but he has kindly allowed me to lay them before your readers.
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DARWIN, C. The Contractile Filaments of the Teasel. Nature 16, 339 (1877). https://doi.org/10.1038/016339b0
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DOI: https://doi.org/10.1038/016339b0
