The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1868]. This is abstract of the whole / Prof Cornalia. CUL-DAR85.B64. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2022. 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 volumes CUL-DAR80-86 contain material for Darwin's book Descent of man (1871).

[B64]

[illeg] 2d Letter

[in margin:] This is abstract of the whole

I must now add induced by the observations of one of our best bacologs, Prof. Cornalia match that when a lot of silkworms is healthy, the resulting males & females approach uncommonly near to equality.

This equality was particularly observed when the brood was examined in freedom.

In breeding in the House & in sickness, the males are in

/over

[B64v]

excess – Differs from my last letter & against general experience of best breeders – but Cornalia good observer.

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