RECORD: Darwin, C. R. 1877.10.31. Fig. 34. Allium cepa / Proof sheet of Cross and self fertilisation. CUL-DAR209.4.22-23. 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).
[22]
Fig. 34
Allium cepa: movements of the basal half of the bent leaf-like cotyledon, traced in darkness on a horizontal glass, from 8°. 15' a.m to 10° P.m. Oct. 31'. Filament affixed almost perpendicularly, movement of bend magnified about 17 times.
Seedling Onion N.E. window
Diverticulum or originally doubled portion.
Main stem [figure] Fig 34 (same scale no lettering)
(no lettering)
[23]
[Proof sheet with corrections of Cross and self fertilisation, p. 11]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 2 November, 2022