RECORD: Darwin, C. R. n.d. In speaking of Highness & lowness of a class we always look to higher members. CUL-DAR205.9.318. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2021. RN1
NOTE: The brown crayon number '21' indicates that this document was filed by Darwin in his portfolio for the subject of Palaeontology: extinction.
Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR205.9 contains notes on palaeontology and geology [regarding theory of evolution].
[318]
In speaking of Highness & lowness of a class we always look to higher members - when discussing families of mammals we do not look to Ornithological when that of fish not to Amphioxus. In snakes not to worm like certain Amphibian
In each class N. S. will generally preserve & form the highest & exterminate the lowest & hence causes Gradations of Organization. Begin with what is meant by Gradation.
21
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 September, 2022