The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. In as much as the conditions of every species (except perhaps a few struggling against Physical conditions, as in extreme north, or in hot-springs) depends chiefly on the other species. CUL-DAR205.9.260. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2021. 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 volume CUL-DAR205.9 contains notes on palaeontology and geology [regarding theory of evolution].

[260]

In as much as the conditions of every species (except perhaps a few struggling against Physical conditions, as in extreme north, or in hot-springs) depends chiefly on the other species; it is improbable that any one species shd remain unmodified, whilst all, or nearly all the others became modified, therefore we might expect all species in a mass to alter approximately together. But be cautious to show that no necessary result of changing conditions only indirect result.

view connected also with Geology

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