RECORD: Darwin, C. R. [ny].02.20-22. Citrus aurantium. CUL-DAR209.4.128. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2022. 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-DAR209.4 contains materials for Darwin's book Movement in plants (1880).
[128]
Fig 13. A Citrus aurantium.
(This has been copied by Frank)
Fig 13A
(1/2 scale)
(Copied by Frank)
Citrus Aurantium
Citrus aurantium: circumnutation of plumule, with glass filament fixed transversely transversely to near apex, illuminated from above, traced on horizontal glass from 1º. 12' 12º. 13 P.m on Feb. 20th to 8º. 54' A.m on Feb. 22d. Tracing magnified Seedling illuminated from above owing to rapid growth of plumule. The Tracing became more & more magnified
On the second morning, (Feb 21st at 10" A.m) the it was magnified 21 times, & 10 1/2 time in figure which is given; but Afterwards the mark beneath beneath the bead was moved & the tracing was magnified 36 times; or 18 times in figure given.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 26 September, 2022