RECORD: Darwin, C. R. 1856.06.21. I saw a Phasianus versicolor indistinguishable from pure bred. CUL-DAR205.7.122. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. 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-DAR205.7 contains notes on hybridism, sterility and pigeons.
The brown crayon number '17' indicates that this document was filed by Darwin in his portfolio for the subject of Hybridism.
[122]
Jun 21/56/ I saw a Phasianus versicolor, undistinguishable from pure bred, which was offspring of cross of P. versicolor & colchicus, crossed back twice by pure versicolor.
These 2 Hens breeds had produced this year 24 eggs & 15 young had been bred —: but the hybrid first cross at Lord Derby's had bred inter se, & then again had bred, so we have grandchildren of the hybrids inter se.—
was it 1st generation
which was crossed with colchicus, & so when reduced.
17 (ask again)
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 9 May, 2023