The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1838?].11.07. Notebook E, p. 55e. CUL-DAR200.3.53. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Text prepared by Christine Chua and edited by John van Wyhe 7.2023. RN1 First transcribed in de Beer, G. Rowlands, M. J. eds. 1961. Darwin's notebooks on transmutation of species. Addenda and corrigenda. Bulletin of the British Museum (Natural History). Historical Series 2, No. 6 (October): 185-200. F1574e

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.

IV 55

specify types & limits of variation, & hence indicate gaps. ─ by this means the laws probably would be generalized, & afterwards by the examination of the special cases, under which the individual stages in the series have been fixed, to study the physical causes. All Cuviers generalization of teeth to kind of extremities come under this head.

7th November

when summing up argument against my theory, doubtless the presence of animals in the present orders (not so in S. America, however) is very remarkable & none discovered before them in any part of World. — Wealden to boot. —

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