RECORD: Darwin, C. R. [1874-1875]. Draft of Insectivorous plants, folio 314 / notes on information from Mrs Dowie about regeneration of limbs. HA-Lot1233. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 11.2022. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with the permission of William Huxley Darwin.

Mrs Dowie was the daughter of Robert Chambers. See the relevant letters in Correspondence vol. 23.

The text of this 321 x 203 mm manuscript corresponds to Insectivorous plants, pp. 220-2.


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(314 (127

removal, atoms of meat were placed on several glands. In the course of 13m+ all the (c)

sub-marginal tentacle on one leaf became considerably inflected but those with the atoms of meat not in the least degree more than the others. On a second & old leaf some of the tentacle with meat, as well as a few & some others were moderately inflected. On a third leaf all the tentacles were closely inflected, though not meat had not been placed on some any of the their glands. I presume that this movement was due to the excitement from the absorption of oxygen. being absorbed.

After 24h their latter third leaf was fully re reexpanded; whereas the two other leaves, with on which atoms of meat meat placed on a few of their tentacles had been placed, now had all their tentacles closely inflected in the [few] a normal manner. over the insect in the centre. of

These form cells from We thus see that all these leaves had all perfectly incurved during the 24 ° . from the effects of the gas after an interval of 24 hours.)

(On another occasion some fine plants were left for 2° h in carbonic acid, & on immediately on being removed atoms of meat were placed on some glands; & again within 12+m after being exposed to the open air, the tentacles on almost all the leaves moved moved & became vertical or sub-vertical. But this was effected in an extremely irregular manner but to the remained, some being inflected on one sid side of the & some on the other side of the leaves so that they had lost all [sporting]. They remained for several hours in the position without becoming more curved & thus touching to centre. The tentacles

[313v]

Mrs. Dowie added explained that Syme made 2 cuttings at the first operation one Dec. 5th which explains makes clear an expression in the diary for Jan. 9th.─

She then says that Syme fully agreed with her father that the stump had grown between the operation on [Jul] 5 Dec. 5th 1850 and Jan May to 2d operation that on May 9th 1851. ─ The stump which was removed on May 9th included a bone, but bore no nail. She adds "we thought that Prof. Syme felt a little annoyed about the business, as he had tried to cut as close as he could the first time (ie. on Dec. 5) when he made first one cutting and then another."

After the second operation on May 9th 1851, she goes on to say, "we could see & feel how much it [illeg] afterwards." "It is now (for no attempt has been made to remove it again) a rather large ugly excrescence, certainly containing a bone, but without any nail." The young lady

(Mrs. D. has written to Prof. Syme's nephew & executor to hear of any notes.)

(Tracing)


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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 28 November, 2022