The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1874].05.12-15. Linseed Oil. CUL-DAR57.25. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2023. 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 volumes CUL-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).

[25]

May 12 7° 48'. 3 leaves (2 wh. had not acted with cinders) ~~put~~ immerse gently into unboiled Linseed oil.— (The long-stalked fresh leaf)

8°. 20' consid. inflection in younger leaf, long footstalk

Fatty Acids??

8° 50' strong inflection in 2d leaf & & some in third much aggregation in 2 leaves. Secretion coloured pink, & apparently much increased.

9° 45' great inflection in 3d spec.

― glands not blackened. —

12° all enormously inflected — secretion more increased— much aggregation.

May 15th. all 3 inflected not very flaccid

~~8° 15 indigo Red Sticks~~

Linseed Oil

/over

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