RECORD: Darwin, C. R. n.d. [Note on gradation.] CUL-DAR48.A5. 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.

Species of Barnacles

[A5]

Gradation

Pæcilasma Pl. II. fig 2.

Lepas

Pollicipes mitella

Catophragmus (side view)

Balanus Pl. VII. Fig 5a

Balanus tumorifer Pl. Fig a

Conia. Pl X. Fig I.

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

File last updated 25 September, 2022