RECORD: Darwin, C. R. [1874-1875]. Draft of Insectivorous plants, folio 176. CUL-DAR57.39r. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2023. 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 volumes CUL-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).
(176
(Ammonia)
likewise sometimes cause the inflection of the lamina; & this is a result which rarely or never followed from an immersion of a few hours in pure water. In the case of the carbonate of ammonia we have additional evidence in the blackening of the glands & in the early aggregation of the protoplasm & within the cells of the tentacles. After the most anxious consideration, the sole source of doubt which occurs to me, & this certainly does not apply to many cases in that I may have unconsciously selected better & more vigorous leaves for the experiments with the salts of ammonia than those whorl were immersed in the water.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 16 May, 2023