RECORD: Darwin, C. R. 1873. Dionaea. CUL-DAR59.1.9. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed 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).
9
p. IA
June 30th /73/
Dionaea
I left the sensitive filament, cut off, in a few drops under thin glass in sol. of C. of Am. (2 1 gr. to 1 oz) for about 1O1/2. & there was Strongly marked segregation, though there was none before, for the filaments has been examined.
The filament was a very pale one, with only a trace of purple in some of the elongated spindle-formed cells; now almost, all the cells contained only a few more or less globular masses— Often 2 in pair, & sometimes many smaller globules.—
These were undergoing constant change of form; joining each other & partially separating again. The segregation extended down whole length. the masses though altrg in shape. kept in the same place.
I could now no longer perceive the current of protoplasm on the walls, which I had previously seen →
; but there were some dark atoms in Strongly marked oscillation & which seemed to revolve, though occupying the same general position; & this I suppose indicates a movement of fluid round the walls, with the atom still connected by a thread to the wall. — Or can the atom of protoplasm have spontaneous power of revolving, as well as of altering shape.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
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