RECORD: Darwin, C. R. [1875-1876]. Draft of Cross and self fertilisation. CUL-DAR77.107r. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 2.2023. 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 volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).
[107]
[top of page excised]
therefore it is probably owing to [tex excised] cause, namely that the intercrossed plants of the successive generations in table A becoming more & more related & thus deteriorated in constitution, that they did do not exceed in height the self-fertilised plants & this may be owing to there being more of [illeg] in the last generation in a greater & greater degree. As far as fertility is concerned we now have conclusive evidence through the admirable experiments of Fritz Müller*(a) on with respect to the hybrids of Abutilon, that the union of brothers & sisters, parents & children, & other near relations is highly injurious.*(b))
[3 words illeg]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 29 May, 2023