RECORD: Darwin, C. R. [1838-1839]. Notebook A excised pages 127e-128e. CUL-DAR42.155. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed and edited by John van Wyhe 6.2025. 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-DAR42 contains notes for Darwin's book South America (1846).
Notebook A: Geology. Text & image CUL-DAR127
155
127
dikes in mountains. (not on continents) prove elevation. — great mountain
chains. may be effects of subsidence
Elie de Beaum. Memoires of French Geolog. Cantal Vol III 1? p. 246. on
formation of cones beneath sea. — with reference to old submarine orifices in
Cordillera
155v
128
Geograph. Journal vol II. p 89. at Madras. surrounded by salt water. purest fresh water must be sought for below the sea mark. —
If mountain chains are matter piled up. over crevice from effect of general elevation, — when subsidence takes place. — Mountain will first fall — the problem will be falling of an arch weighted in its centre. —
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 30 June, 2025