RECORD: Darwin, C. R. 1873.06.29. Extract of Hyosciamus. CUL-DAR55.154. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Text prepared and edited by John van Wyhe. 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).
154
June 29th 73
(3) 2 leaves Extract of Hyosciam 3 gr t 1 oz 9.. 15' ( 11O 15 spec. mass one of these leaves & a fresh leaf long [illeg] in C of Am 2 gr to 1 oz) . (Cup with red rim)
(12O 5', some tentacles inflected over pedicel) — (1O consid. inflect on side over pedicel.) (July 30 2O 30 A fresh leaf fully expanded, put into this & in Hyosciamus 20th 11O 15' the tent over pedicel much inflected)
(A (1O , the specimen left in the Hyosciam with some inflection, tentacles standing up vertically.)
(2O 34' abut 5 inflected, put in C. of Am 1 gr. t 1 oz— immersed for 5O 15'
(5O 15' very consid. inflection) — aft 2O 40'
(July 30 8O 30' same state)
(4) Extract of Hyosciamus. 1 1/2 gr. t 1 oz 9. 23'
11O 18' (in plain cup ) Long leaf pedicel plain ( fresh leaf for comparison )
12O 5'a good deal of inflection.
(1O. as much inflection as in the fresh spec. show that Hyosciamus has not prevented action of C. of Amm) ; glands equally blackened ) in both specs
(5) do do do
(1O in same state as A) Nor 3)
(2O 35', abut 40 tent inflected continuing counting the shorter sub-marginals, out into pure water)
(July 30 8O 30' abut 60 inflected.)
― 5O P.m almost quite reexpanded
154v
(68
Acetate of Morphia
&
Hyosciamus
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 29 November, 2025