The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [ny].07.13-28. Fennel. CUL-DAR68.110. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 4.2023. 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-DAR68 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.

[110]

July 13th

Fennel

10° 30' cleaned bloom off a stem not very high up for bloom thicker on lower internodes & placed wet sponge surrounded by gutta-percha sheet. (N.B leaves & petioles are well wetted by cold water, no bloom.)

July 18th 9° A.m. tied sponge & gutta percha round another stem, having wiped off bloom— further plant from House

July 23d after long rain I find stem with many drops of water on them, but not whole surface wetted.)

(July 28' The older stem July 13 1 or 2 little brown specks — the other stem no effect. — White wool.)

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