RECORD: Darwin, C. R. [1874]. 11h 20 / 4 leaves in 2 dr of Lactic Acid (old) / Proof sheet of Expression. CUL-DAR57.68-70. (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).


68

(June 3d.    11O 20'

   4 leaves in 2 dr of Lactic Acid (old)    1 gr to 2 oz. —

(2O. after 2h. 30' fluid quite pink, but no inflection.    glands pale)

(6O 45', [-] 20 [=] 25 aft 7O 30' in 2 leaves, sub-marginals inflected — in the 3d leaf — some marginal tentacles on 2 opposite sides inflected — glands almost white — sol. very pink

June 4th    7O 45' aft 21h 2 leaves with a great deal of inflection; a third with sub-marginals & a 4th not at all — Th marginals of gland white, but some very dark red.

June 5 7O 45'    1 leaf with almost all inflected; 2 with vast number; 3d & 4' either hardly none; but almost every gland colourless, except 2 of them which have many glands on disc dark red. ==

   (apparently dead)

68v

69

June 4th /74/    7O 50    Lactic acid

1 part to 3 oz of water, (4 leaves)

4O 30'— water tinge of pink—    hardy any inflection — glands dark red, some striped with pale

(5th    7O 40'    has had no effect    water white

   June 6th    8O A.m.    Tentacles bowed outwards, I think killed

1 part to 4 oz of water.    (4 leaves)

(4O 30' as above)

   (5th    7O 40'    no effect of any kind)

   Jun 6'    8'    on 2 leaves most of glands on disc quit white — tentacles bowed outwards

70v

June 6th.    8O.    Lactic Acid

   1 part to 10 oz of Water

   4 leaves

(7th.    9.  8    no effect)

70


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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 30 November, 2025