RECORD: Darwin, C. R. [1849]. Abstract of J. D. Dana, Geology of the U.S exploring expedition, 1849, vol 10. CUL-DAR71.51-52. Transcribed by Christine Chua, edited by John van Wyhe (Darwin Online,

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 11.2020. 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-DAR71 contains Darwin's abstracts of scientific books. Darwin recorded reading this work on 10 December 1849 in his 'Books to be read / Books Read' notebook (1838-1851). Text CUL-DAR119.-




Geology of U.S. Exploring Expedition (vol x) by J. D. Dana

p. 79 at the Tarawan or Kingsmill group stones brought in sorts of trees.

[p. 366]

Hawaii he calculates from size & number of streams found out of late years, during which volcanic very active & [continuous] compound to their greatness of the world, that the part above sea wd have required 400,000 years for formation – No doubt

Very vague

p 659

greater [illeg] on a Californian formation

"In the Eocene & also in the miocene strata, there are peculiar forms which obtain in Europe & America, and although the species differ, yet they are so nearly allied that this character alone, independent of the percentage of extinct forms, is quite a safe guide to the relative ages of remote fossiliferous rocks."

[Dana citing a report by Timothy A. Conrad (1803-77)]



p. 674

Boulders of granite 6 ft in diameter parent rock 70 miles [illeg] on the banks of the Columbia

Lat 46º N



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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (

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