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


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 29 November, 2025