The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1845.01. I must admit, when I speak of all parts varying, that ovules, as far as is known do not vary. CUL-DAR205.6.35. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 11.2021. 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-DAR205.6 contains notes on embryology [pigeons].

[35]

Jan 45

I must admit, when I speak of all parts varying, that ovules, as far as is known do not vary

12 probably wd result, from long series of changes in adult plant - so we do not know whether embryo of animals vary, except in result. There being no adaptation, in ovule there can be no selection of it, at ovule, so only indirect - will depend on law of development & growth of which we know nothing.

(5)

35v

Cross Pheasant & rumpless fowl

Tailess dog & fox

Cross of abortive organ, with whole organ to organ with Koelreuter

Dorking & Pheasant.

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