The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1860.08.13. great difference in…vitelline cells CUL-DAR48.A44. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2021. 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-DAR48 contains notes for Natural selection chap. 8 'Transitions of Organs'. Notes on bees' cells for origin of species theory.

[44]

(Ch 8)

Aug 13th 1860 J Lubbock urged as very great difficulty, great difference in different orders of insect, & even (I think) in same order of Coleoptera, of vitelline cells &c - & so in Scolopendræ & lulidæ &c. This something analogous to difference in placenta which does not make quite natural classification; & so I believe cotyledons of plants - at least in Leguminosæ some fully developed & some never yet out of seed. These differences are connected with outer world - not due to inheritance like the late changes in embryo - they seem all connected with nourishment & laws of growth about which we know little - They are of course inexplicable difficulties at present - & offend to all System.

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