RECORD: Darwin, C. R. 1872. Segregation / Plain water - new cases. CUL-DAR55.75. 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).


[75]

Segregation Down 1872 Plain water new cases. not yet worked in)

p. 12. 1' leaf after 15˚15' great seg. in all tentacles. 20m. of water

12 A 1 leaf after 5˚ 40' no spherical masses, but transparent lines: after 8˚a good deal below glands of most ts, but running not far down: after 23˚— no increase of seg. no spherical or oval masses. 10 minim

This leaf turned upside down & apparently caused so some inflection near footstalk. —

p 12. A Back Effect of C. of Ammonia & after 23˚ imm

p. 13. 1 leaf in 10 m. after 5˚45' some seg. under most tentacles, specially the longer ones. some in shorter — after 21˚ a great deal of seg. nearly whole length of many tents.

p. 14. 5 leaves after 24˚ imm all glands blackened, nothing said about segregation.

p 18 (Back) after 42˚ glands all blackened— nothing said about segregation.

(Used)

(p 31. old perfect M.S. about segregation in 1˚10' from inorganic atoms)

Segregation is cut off leaves may be due to secretion from glands, for see affects from plant

with roots


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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 13 May, 2023