RECORD: Darwin, C. R. 1880.03.18. Peas / Draft of Movement in plants. CUL-DAR209.5.152. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 5.2023. 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-DAR209.5 contains materials on movements of radicals for Darwin's book Movement in plants (1880). The text of the draft corresponds to Movement in plants, p. 528.
(C
Peas Sachs Cur
on Study Table
suspended March 13' 8° a.m
March 18' no Sachs Curvature
18' 2° 30' P.m put cards on 3 about 4 mm from tip & cards on tips of 4.—
Radicles now very long straight & perpendicularly dependent a smooth-skinned Pea—
radicles germinate much better
10° 30' P.m. no effect
No Sacks Curvature
nor in the Clinostat March 1880
[sketch]
[152v]
of them in a plane at 20 with their longer axes which appears to the eye a very slight inclination, incline appears slight to the eye, & the other two at an angle of about 45°— was allowed to grow [illeg] down vertically into with water. Under these circumstances no less than 19 out of the 30 radicles became much distorted [sketch]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 26 July, 2023