RECORD: Darwin, C. R. 1874.06.08. 3 leaves with Camphor water. CUL-DAR57.50. 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).
(1
June 8' 74. 3 leaves into Camphor water 7° 47' 13 0 at 8° 3' immense inflection in all (but these have caught flocculant masses of Camphor
11° 30' 23 .3 after 3h. 45. dingy red most closely inflected (much mucus secreted) — Though so closely inflected, yet at 11° 45 (4h) not a trace of aggregation — dingy purple
!!!
(fluid tastes plainly of camphor)
8th 7° 45' 2 drops of Spirit of Camphor 11° 45' no effect! (2° 30' no effect) (7°, 0)
9th 7° 45' no action
[1v]
one leaf which had been immersed for 3h in the Q. was put into some C. of Amm. (2 gr. to 1 oz) & left in it for 30m, the glands had become intensely black & the blackness had extended some little way down the upper parts of pedicels.
The protoplasm in the cells here presented an appearance which I have never before seen, viz a reticulated mass, with rounded & angular open spaces: the protoplasm was of a dingy colour & though observed for some time, never changed shape. This shows that some Q. must have been previously absorbed & it is remarkable that it had not stopped movement of protoplasm.
S. of Quinine
[3 words illeg]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 16 May, 2023