RECORD: Darwin, C. R. [ny].03.17. Force of radicle. CUL-DAR209.5.77. 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).
[77]
March 20th Force of radicle
Got tip of radicle into hole with not in below & then load bean with several ounce 6 oz & see if will lift up.
Fresh tracing, on inclined glass smoked
Force in splitting wood, & such beans ought— to be planted in earth for radicle to grow well beneath— Hole rather large— One piece to be split at one end & the other not split, & one in wooden pincers.
Fix with shell-lac— thick bristle & wood 1/40 of inch high across smoked glass & see if jump over.
Gold-Leaf— on smooth sand jump over very little obstacles— Bit of camphor on made smoked glass.
Cap— 8°. oz
(over
[77v]
2 oz & 4 oz. 9° a.m. Mar. 22d
(March 23d 8° a.m. had lifted up the 2 oz a good bit & plant on 6 oz)
(Mar 23d 8° a.m had lifted up 4 oz 1/10' of inch put on 8 oz)
24th 8° a.m failed to lift 6 or 8' oz— radicle bowed outward or doubled on itself in 2d case, & one the 8 oz weight has sunk & the other not risen.
March 27' quite failed to lift 6 oz & 8 oz— upper part of radicle become contorted— one of roots so jammed in hole broke rather than be withdrawn.
over
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 26 July, 2023