RECORD: Darwin, C. R. n.d. Which is most probable that two birds should be separately evolved. CUL-DAR205.5.166. 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 volume CUL-DAR205.5 contains notes on the principle of divergence, transitional organs and instincts.
The brown crayon number '11' indicates that this document was filed by Darwin in his portfolio for the subject of Divergence.
[166]
11
which is most probable that two birds, should be separately created in N. & S. America— with scarcely any difference in form yet with such curious resemblance in habits as standing on cattles back,— (usical sound see Audubon &c) in parasitical propagation — or that the same influence which allows every dog to turn round before he sleeps &c— & has altered its form from Greyhound— bull-dog.— or if that amount not allowed, as much (& much must be allowed) as each reflecting observer chooses to allow—
V. Zoology of Beagle's Voyage
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 6 March, 2023