The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Abstract of Knight, Treatise on culture of apple & pear. CUL-DAR205.7.245. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2023. 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-DAR205.7 contains notes on hybridism, sterility and pigeons.

Knight, Andrew. A treatise on the culture of the apple and pear, and on the manufacture of cider & perry with an appendix and postscript. 4th ed., London, 1813. IX, 119.

[245]

Knight Treatise on the Culture of Apple & Pear. p. 38 9 —

When two permanent varieties are crossed, (both in animals & vegetables)

"the immediate offspring will present a mixture of both characters, in nearly an equal proportion, but the progeny of this offspring. will be extremely various. Some will take nearly the form of their male &c "& it will be long before a new permanent character is acquired"

p. 38. When varieties of Wheat are sown together, they readily sport into new seedlings. Mr K. alludes to all plants crossing each other by insects to prevent interbreeding. —

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