RECORD: Darwin, C. R. 1874.04.08-.09. 2 leaves in Benzoic Acid. CUL-DAR57.4. 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).


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7° 55' Ap. 8' 1874. 2 leaves in Benzoic Acid 1 gr to 437' of water — only here & there traces of aggregation. — Large glass.

8°. 7' secretion now coloured & I believe some aggregation

8° 12' no doubt great segregation down to base of some tentacles — but opake & white not oval masses.— some inflection of sub-marginal — some glands

Aggregation

8° 3', do 2 leaves Iodic Acid same strength, smaller glass. — 8° 18' no aggregation

8° 55' very little or no effect or change

10° 20' Red a good deal broken; but when examined under compound M nothing which can be called aggregation —(convex side of curved tents very pink) The end of pedicels mud-coloured & granular aggregation but evidently killed & not true aggregation.)— (11° 45 now a decided appearance under simple lens of aggregation; glands dull red.) (12°, 50' less appearance of aggregation) (2° 20' glands now plainly whitish: there is certainly under compound a few of aggregation excessively minute spheres of dull darkish red.— apparently dead.

 


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

File last updated 14 May, 2023