RECORD: Darwin, C. R. n.d. Galapagos - Think of consequences. CUL-DAR205.9.151. Edited by John van Wyhe (Darwin Online,

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2021. RN1

NOTE: The brown crayon number '22' indicates that this document was filed by Darwin in his portfolio for the subject of Palaeontology: extinction.

Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.



Strickland says amount of [similarity] in the geological regions, bears relation to number of species similar.

False – Galapagos - Think of consequences

In same great region – each parts has some species same, some analogous, some exclusive 

Galapagos has same relation to S. America, as the geological period to another

Galapagos (2) more allied to S. America (1), then yet N & S. America more species in common.

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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (

File last updated 30 April, 2022