RECORD: Darwin, C. R. n.d. Phalaris. CUL-DAR209.8.137. Edited by John van Wyhe (Darwin Online, htp://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2022. 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 volumes CUL-DAR209.7-8 contain notes on heliotropism (phototropism) for Darwin's book Movement in plants (1880).
[137]
N.B. A. Cot of Phalaris only .03 inch in height became greatly curved to light. — which had just protruded from the ground.
(Age at which sensitive)
[137v]
Height of bowed Phalaris
No furrow behind Cots in Soil
Weight does not cause bowing
Add to case the blackened tubes
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 September, 2022