RECORD: Darwin, C. R. 1877.12.16-25. Red Cabbage / Draft of Cross and self fertilisation. CUL-DAR209.4.77. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2022. 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-DAR209.4 contains materials for Darwin's book Movement in plants (1880).


[77]

Circumnutation observed from 9° 20' a.m Dec. 23d to 6° 45' a.m. Dec. 25th

Fig 4. Red Cabbage beneath ground (Diagram Q.)

Stem tied 1/2 scale (Reduced to 1/2 scale no lettering)

[Figure]

When reduced to 1/2 not be magnified En only sh styled

I believe magnified about 26 times but forgot to measure accurately

[Movement in plants, p. 14: "Brassica oleracea: circumnutating movement of buried and arched hypocotyl, with the two legs of the arch tied together, traced on horizontal glass during 33 1/2 hours. Movement of the bead of filament magnified about 26 times, and here reduced to one-half original scale."]

[77v]

* There is a considerable amount of evidence that all the higher animals are the descendants of hermaphrodites; & it is a curious problem whether such hermaphroditism may not have been the result of the conjugation of two slightly different individuals, raging which representing the two incipient sexes. On this view the higher animals perhaps may now own their bilateral structure, with all their organs double at an [illeg] early embryonic period, to the fusion or conjugation of two primordial individually.

[Cross and self fertilisation, p. 413: "* There is a considerable amount of evidence that all the higher animals are the descendants of hermaphrodites; and it is a curious problem whether such hermaphroditism may not have been the result of the conjugation of two slightly different individuals, which represented the two incipient sexes. On this view, the higher animals may now owe their bilateral structure, with all their organs double at an early embryonic period, to the fusion or conjugation of two primordial individuals."]


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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 1 November, 2022