The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1877.11.10.11. Red Cabbage. CUL-DAR209.4.66. 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).

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Red Cabbage

Nov. 10th 77

Selected a seedling very young with shorter Cot. quite upright or not expanded & fixed filament of glass & traced in closet in complete [sketch] darkness nutation (Diagram M.) on horizontal glass. Tracing magnified 8 times, but more when it becomes very oblique. Wonderful nutation — at right-angles. No doubt far more complex really & longer ellipses for dots generally made at intervals of hours — Position & course shown next morning

I think stem bends to rubbed side— Pricking & rubbing Cots— no effect

Nutation of stem in complete darkness

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