RECORD: Darwin, C. R. 1880.02.26-28. Peas radicles / Conclusions. CUL-DAR209.5.149-151. 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).


[149]

Conclusions

Feb 26'

Of 4 with cards of 4 mm from tip only 1 acted & curved to card

Of 3 cards on tip. one distinctly & 1 doubtfully from card

(3 with cards both at 4 mm & on tip all 3 bent from tip card so may say say of 6 with card on tips, 4 bent from tip-card & 1 doubtful

à (Both papers together Conclusion)

Of 9 radicles with cards at 4 mm from tip only 2 acted & now to card.—

Of 11 with cards on tip— 5 acted & 1 doubtfully, curved from cards —

Anyhow in 1 jar saw both opposed actions simultaneously.—

[150]

B

Feb 26 80 8° a.m Radicles Peas – germinated in saw dust suspended over water. Temp 58°-62°— cards on sides & on tips small sqr sand-paper – shell-lac (Almost all the radicles very short &

[data not transcribed]

[150v]

Feb 27 1880 8° a.m Peas Radicles (like yesterday)

[data not transcribed]

[151]

In the paper of 5 with card at 4 mm from tip only 1 acted & curved to card.— of 5 with cards to tip only 1 acted & & curved from card (see separate note-paper for General Summary)


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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 26 July, 2023