RECORD: Darwin, C. R. 1877.11.25-30. Cress reobserved / Red Cabbage. CUL-DAR209.4.73-74. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2022. 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-DAR209.4 contains materials for Darwin's book Movement in plants (1880).


[73]

Nov. 25-26

Cress reobserved

Nov. 25' noon 8 Plants marked bases of Cots. not touching — petioles a little apart: cots much deflexed; at 10º 20' P.m., the bases of opposite cots in close apposition & this cause the trifid Cots. to be a little raised, & sometime occasionally even to stand vertically, but not enough I think to afford protection.

Nov. 26' 11º 30' a.m. Petioles of plants of which a line joining the 2 Cots happened to stand at right angles to light now stand apart; when those of which the same line stood directed to light had the 2 petioles in apposition, owing to movement to light of the further one. This deceived me for a time.— no doubt petioles move together at night.— Cots. themselves rather more deflexed than during day.

Nov. 26. 10º 15' P.m. petioles all close together)

Nov. 27th 6º 45' a.m. petioles now apart though dark)

All radishes with cots close together

[74]

(Red Cabbage Nov. 29th no trace of bloom on Cotyledons.)

Red Cabbage. Nov. 27th 10º 20' P.m. Kept in study in N.E. window all day only 2/7 can be said to be asleep, though some of the plants which were not marked are so

Nov. 29' 10º P.m The seedlings bent over to light & I cannot tell but I think somewhat raised & in contact—

Nov. 30 10º P.m; petioles of almost all in contact, & the shorter Cots. much raised & some of them sub-vertical: during previous day petioles not in contact—


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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 25 September, 2022