RECORD: Darwin, C. R. and George Darwin. n.d. Out of 16053 mares 6702 were barren / Draft of Insectivorous plants (fragment). CUL-DAR193.18. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2022. 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-DAR193 contains notes for Darwin's book Variation under domestication (1865-75).


[18]

Out of 16053 mares 6702 were barren; that is out of every 5 mares a little more than 2 were barren, or 2.12 were barren.

[18v]

[right side of the page and its text excised] with the atoms of meat did

than the others. &

insensible & did not to the action of

not caused by the quite independent of its

interval of 2° 20' m

act, & these ten

anter they reached the

22° h all the tent

over the meat; but

no meat, the roots

had full reexpanded resumed their forms

from [words excised] week, [illeg]

[Insectivorous plants, p. 222: "They remained in this position for some time; the tentacles with the bits of meat not having at first moved more quickly or farther inwards than the others without meat. But after 2 hrs. 20 m. the former began to move, and steadily went on bending until they reached the centre. Next morning, after 22 hrs., all the tentacles on these leaves were closely clasped over the meat which had been carried to their centres; whilst the vertical and sub-vertical tentacles on the other leaves to which no meat had been given had fully re-expanded. Judging, however, from the subsequent action of a weak solution of carbonate of ammonia on one of these latter leaves, it had not perfectly recovered its excitability and power of movement in 22 hrs.; but another leaf, after an additional 24 hrs., had completely recovered, judging from the manner in which it clasped a fly placed on its disc."]


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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 4 November, 2022