Search: Darwin, C. R. in correspondent 
1860-1869::1869::05::20 in date 
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DCP-LETT-6751

From:
Charles Robert Darwin
To:
Charles Lyell, 1st baronet
Date:
20 May 1869
Source of text:
American Philosophical Society (Mss.B.D25.370)
Summary:

Cites article by David Forbes dealing with the geology of the S. American Cordillera ["Geology of Bolivia and South Peru", Q. J. Geol. Soc. Lond. 17 (1861): 7–62].

Discusses the flexures of the Cordillera, the age of the mountains, and basaltic dikes in granite areas.

Contributor:
Darwin Correspondence Project

DCP-LETT-6752

From:
Henry Maudsley
To:
Charles Robert Darwin
Date:
20 May 1869
Source of text:
DAR 161: 308, 323/6–9; DAR 171: 93
Summary:

He forwarded CD’s queries on the insane to James Crichton-Browne who has now answered.

Contributor:
Darwin Correspondence Project

DCP-LETT-6753

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
20 May [1869]
Source of text:
DAR 148: 322
Summary:

Asks for information about male birds migrating before females.

Contributor:
Darwin Correspondence Project

DCP-LETT-6753F

From:
Charles Robert Darwin
To:
John Wheldon
Date:
20 May [1869]
Source of text:
Yale University Medical Historical Library, Harvey Cushing / John Hay Whitney Medical Library (tipped into Rare Book QH9 D25 867M)
Summary:

Orders two second-hand books from a dealer’s catalogue.

Contributor:
Darwin Correspondence Project
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