RECORD: Darwin, C. R. [1877].08.28-12.12. Ricinus & Fern. CUL-DAR66.174. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. 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-DAR66 contains notes on 'bloom'. Francis Darwin explained: "His researches into the meaning of the 'bloom,' or waxy coating found on many leaves, was one of those inquiries which remained unfinished at the time of his death. He amassed a quantity of notes on the subject". LL3: 339. See an Introduction to these folders by Christine Chua & John van Wyhe.
[174]
Ricinus & Fern
Aug 28th 11˚ 15. Ricinus rubbed off thick bloom upper young part of stem & put on sponge & gutta percha.
Sept 11th sponge removed no effect — red-wool
Dec. 12 no effect
Fern
do— date
stem of petiole of young leaf — well covered with bloom, which shoots off water excellently — stem green, with few long hairs — sponge & gutta percha.
Sept 11th sponge removed — no effect — red w.
― 17— space of a mottled colour, but am not sure effect of sponge
Dec. 12 no effect
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 6 July, 2023