RECORD: Darwin, C. R. [1875-1876]. Draft of Cross and self fertilisation. CUL-DAR64.2.15v. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2023. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR64 contains material for Earthworms, experiments on worms; different locales & photographs and cuttings from journals.

Draft in the hand of Ebenezer Norman with corrections by Darwin. The text of the draft corresponds to Cross and self fertilisation, p. 144.

[277]

Tropæolum

Sprengel and Delpino. Twelve flowers on some plants growing out of doors were crossed with pollen from a distinct plant, and produced eleven capsules containing altogether 24 good seeds. Eighteen flowers were fertilised with pollen from the same flower and produced only eleven capsules, containing 22 good seeds. So that a much larger proportion of the crossed than of the self-fertilised flowers produced capsules, and the crossed capsules contained rather more seed than the self-fertilised [the proportion] ratio of 100 to [illeg]. The [text excised]

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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 9 October, 2023