RECORD: Darwin, C. R. & Francis Darwin. [1878].11.18-25. Horse-chestnut / Spanish chestnut. CUL-DAR209.5.112-113. 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 for Darwin's book Movement in plants (1880).
(1
Horse chestnuts slicing
Nov 18 10° to 11' am
Nine sliced and fixed up, so that roots dip in but not the seed; on study chimney piece under loose brown paper cups: Temperature of water 15-16C
Nov 19. 10.36 am
2 bent with no relation to cuts
1 towards
1 slightly away
The rest not bent at all
Nov 20 & 21st No changes except one root bent away from cut, bending place close to seed
Observed till Nov 21st, some slight bendings occurred but only 2 showed clear bending away from cut near the tip.
2/9 in 3 days
Nov 25th Fixed up & sliced 2 Horsechestnuts
2 2 0 3 [=] 7
9 4 4 5 [=] 22
11. 40 am.
Nov 27
[2]
Spanish Chestnut Nov 23 11 am
Spanish Chestnuts I & II; one fixed 11.35 am Nov 19 one Nov 22 12 noon — both fairly vertical now now Sliced with razor— dip in H2O seeds dry
Nov 24 — no bending visible
Nov 25 11 50 am
one bent slightly towards cut at tip, the other— bent to side marked as cut but on which I can see no cut— Nov 28, I can cut mark & the root is bent slightly away from the cut side.
Spanish-Chesnuts I think go for nothing— They always grow so badly
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 26 July, 2023