RECORD: Darwin, C. R. n.d. Sulphate of Quinine - One grain was added to an ounce of water but all was not dissolved. CUL-DAR61.108. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. RN1
NOTE: Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).
[108]
Sulphate of Quinine - One grain was added to one an ounce of water, but all was not dissolved. Half-minims of the solution were placed on the discs of six leaves. No effect was soon produced; but after 23° one leaf had all its tentacles closely inflected; two had some few tentacles inflected; & the remaining three had none.
after 48°, from the time when the days were placed o given,
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 26 December, 2022