RECORD: Darwin, C. R. [ny].07.12-21. Sea-kale / Salt. CUL-DAR68.66. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 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.
[66]
Sea Kale Salt.
July 12th 8° 45. 2 spots cleaned with sponge in water at 90° & drops of salt-water (1 verm dot) 2 other drops on bloom 2. verm. spot.
July 15th 8° 30' Blue spot cleaned rubbed very slightly small space with pumice & left it to dry
July 18th 8° 30' A.m. — Large quite rotted on space with a hole clean through in one place; & in the 2d place a mark which I suspect if decay)
(19th mark much plainer &) decayed.)
Where drops of salt-water lay on bloom no effect.
July 18' 8° 40' put Salt-water on space by Blue spot, which was in the least affected by the rubbing with pumice only by whitish streaks of abrasion. —
July 21th 8° now decayed.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 11 July, 2023