RECORD: Darwin, C. R. [1838-1839]. Notebook A excised pages 43e-44e. CUL-DAR42.133. 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
133
43
Mr Poulett Scrope. talks of Trachyte, "superficially coated by a thin pellicle of
a blackish colour like a dull & poor varnish, which I conceive to be analogous
to the black glazing observed by Humboldt on the granitic rocks of the
Orinoco". — but on one of the Ponza isles. but no minute description is
given. —
Vol II. 2d Series. p. 221. —
133v
44
Mr Bollaert tells me, that the upper strata alone at Guantajaya contains salt. see Geolog. Proceedings
Lake let out by steps in Central France not very conclusive proofs, but certainly probable. Bulletin de la Soc. Geolog: 1833−34. P. 35. —
Ancient Lake Lemagne in Auvergne
Proofs from Phryganea
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 30 June, 2025