RECORD: Darwin, C. R. 1877.10.06-07. Marsilea quadrifolia / Proof sheet of Forms of flowers, p. 68, published p. 133. CUL-DAR209.14.43-44. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 7.2023. RN3

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-DAR209.14 contains material for Darwin's book Movement in plants (1880).


[43-44]

Marsilea — Oct 7' in Study

(1)

8. 45' a.m 7th

12º 10'

1. 50' P.m

2º 15 P.m.

4º.

5º 25'

6º. P.m

6º— asleep P.m

7º 10

8º. 40'

9º. 35

10. 40' P.m.

8º. 25' a.m 8th.

awake.

F. 170 (2/3 scale 5 sets of lettering in ink with blue lines)

Marsilea quadrifolia; circumnutation & sleep movement of a leaflet, trace during one 24 hr

Kept at a rather low temperature Pm traced on vertical glass day one 24 hr.

Trac. reduce to 2/3 of true scale.

[44v]

[Proof sheet of Forms of flowers, p. 68, published p. 133.]


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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 February, 2026