Suggests that the height of the water which formed the shelves in Glen Roy was determined not by the height of the blocking glacier but by the height of a col. Notes problems in the idea.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Suggests that the height of the water which formed the shelves in Glen Roy was determined not by the height of the blocking glacier but by the height of a col. Notes problems in the idea.
Explains how melting of ice in Glen Spean could have successively freed two lower cols, thus establishing the water-levels that determined the two lower shelves in Glen Roy.
Plans to read a paper to the Linnean Society ["Sexual forms of Catasetum", Collected papers 2: 63–70].
Jamieson has revisited Glen Roy and confirmed his theory of glacier lakes.
A. G. More considers CD the most profound of reasoners.
Relates personal news about family members.
CD is "glad Glen Roy is settled".
Mentions evolutionary remarks on birds by Owen.
Compares variability among lower and higher organisms. Comments on Hooker’s view of the subject.
Forthcoming publication of Huxley’s book [Evidence as to man’s place in nature (1863)] and Lyell’s [Antiquity of man (1863)].
Mentions a discussion of man by Isidore Geoffroy Saint-Hilaire in his Histoire naturelle générale [1854–62].
Mentions a book by Friedrich Rolle [Ch. Darwin’s Lehre von der Entstehung der Arten (1863)].
Cites evolutionary statements on elephants by Hugh Falconer and notes Falconer’s objection to natural selection.
TFJ returns CD’s "too flattering" letter concerning Glen Roy [see 3761]. Further discussion of [A. C.] Ramsay’s, [J. D.] Hooker’s, and CL’s arguments about the formation of glacial lakes.
Further comments on Jamieson’s theory of the formation of the roads of Glen Roy; paper by Jamieson dealing with glaciation in Scotland ["On the ice-worn rocks of Scotland", Q. J. Geol. Soc. Lond. 18 (1862): 164–84].
Comments on paper by A. C. Ramsay on the glacial formation of lakes ["On the glacial origin of certain lakes", Q. J. Geol. Soc. Lond. 18 (1862): 185–204].
Criticises remarks by John Tyndall on glacial formation of Swiss valleys.