RECORD: Darwin, C. R. 4 leaves in 1 dr of Sol of Chloride of Sodium (domestic salt). CUL-DAR60.1.105. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Text prepared and edited by John van Wyhe. 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).

105

Sept 10th 10º 25. 4 leaves in 1 dr. of Sol. of Chloride of Sodium 1874 (domestic salt) 1 gr. to 1 oz

This was tested & found not alkaline.)

all 4 became strongly inflected with albumen

Formation of Muriatic Acid

Sept 11th    8º    Not alkaline or acid

Sept 12th    8º    not    do       do.

Tentacles beginning to expand & some fully expanded yet the sol tastes saline

1 [x] 8 [=] 8 dr. [x] 4 [=] 32 1/32 of gr—

2 dr [x] 8 [=] 16 [x] 2 [=] 32

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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 12 February, 2026