RECORD: Darwin, C. R. 1844.03. Bell tells me in late lecture he put unity of type in striking way. CUL-DAR205.5.95. 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-DAR205.5 contains notes on the principle of divergence, transitional organs and instincts.
[95]
March 44
Bell tells me in late lecture he put Unity of type in striking way, viz. "that whenever there was any deviation of habit from the typical group, such deviations were effected by a modification of its own organism & not by organs drawn from other groups.— function of the tongue is an organ of taste toad, chamelion, woodpecker, giraffe.— or ribs for respiration.— sailing lizard,— walking serpent— tortoise— &c &c.
Shells of Gasteropods protects heart &c &c. in Testacella, subterranean, wants shells at tip of tail & has it, but under this terminal tail shell lies the heart &c!
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 5 March, 2023