RECORD: Darwin, C. R. 1864.12.11. The more I think the more I am inclined to believe in Suess (& Falconers?) view that the period of change in any species is very short compared with that of persistence of form. CUL-DAR205.9.368. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 10.2021. RN2
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 volume CUL-DAR205.9 contains notes on palaeontology and geology [regarding theory of evolution].
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Dec. 11. 64. The more I think the more I am inclined to believe in Suess (& Falconers?) view that the period of change in any species is very short compared with that of persistence of form. This cd aid much in understanding why in going back in time we so generally find persistence of form. Geology & Pal.
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The question will come— species have changed— why not better evidence afforded by Geology?
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 16 January, 2026