The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. [ny].06.14. The fact of under surface being generally paler than upper. CUL-DAR47.49. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2022. 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-DAR47 contains notes for Natural selection chap. 7 'Laws of Variation'.

[49]

Ch. VII

June 14th The fact of upper under surface being generally paler than upper (but there are some, I am sure, remarkable exceptions), & generally the effect of light, might be admirably illustrated by effect of light on the reconstructed arborescent incrustations at ascension.

I see Mr Jamieson I see attributes much like light effect on mind of animals: so allude to this: as so many lower animals lay before or at period ↘

[49v]

of impregnation influences must be before conception; or not during gestation in womb, added in communal doctrine─

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