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From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
[on or before 20 Jan 1847]
Source of text:
American Philosophical Society (Mss.B.D25.57)
Summary:

Quotes from South America [p. 167] on the foliation of metamorphic rocks.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
[23 Jan 1847]
Source of text:
American Philosophical Society (Mss.B.D25.65)
Summary:

Asks CL to address a letter to Charles Maclaren.

Discusses recent publication by David Milne on erratic boulders [Edinburgh New Philos. J. 42 (1847): 154–172].

Views of Bernhard Studer on foliation of gneiss in the Alps. Asks CL to tell Leonard Horner of Studer’s views.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
[24 Jan 1847]
Source of text:
American Philosophical Society (Mss.B.D25.58)
Summary:

Comments on investigation of coral reefs by A. A. Gould, particularly the reefs around Tahiti. Mentions description of reefs of Tahiti by W. Forbes.

Hooker’s view of work by C. J. F. Bunbury.

Contributor:
Darwin Correspondence Project