RECORD: Darwin, C. R. & Emma Darwin. [1868-1871]. Abstract of Siebold, On the law of development of the sexes in insects. CUL-DAR85.B113. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2022. RN2
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 volumes CUL-DAR80-86 contain material for Darwin's book Descent of man (1871).
[B113]
Annals & Mag. of Nat. Hist Sep. 1868
p. 207. Herold has shewn that the germs of the reproductive organs in the cabbage butterfly shew a "perfectly distinctly visible distinction of the two sexes" in the egg.
Siebold, Carl Theodor Ernst von. 1868. On the law of development of the sexes in insects. Annals and Magazine of Natural History 4th ser. 2 no. 9: 205-212. [CUL-DAR.LIB.PER-U288] PDF
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 19 August, 2025