RECORD: Darwin, C. R. 1881.08.23 Aggregation / Beet / Tripoli Onion. CUL-DAR62.106. 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-DAR62 contains for Darwin's papers 'The action of carbonate of ammonia on the roots of certain plants', 1882, F1800 and 'The action of carbonate of ammonia on chlorophyll-bodies', 1882, F1801.
(9
Aggregation
1881 Aug. 23d
Beet, radicles from seeds exposed to sol. 4 to 1000 C. of ammonia for 20 hr. completely killed, shrivelled & blackened, whereas the red hypocotyl, had absorbed hardly any & was not discoloured. — Exposed for 20 hr to sol of 2 to 1000 all killed
Killed
Tripoli Onion, radicles exposed for 22 hr to sol. of 4 to 1000 C. of ammonia, (in at same glass with Beet) apparently not in the least affected.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 23 July, 2023