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Horner, Leonard in correspondent 
1840-1849 in date 
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DCP-LETT-677

From:
Charles Robert Darwin
To:
Leonard Horner
Date:
25 June 1843
Source of text:
American Philosophical Society (Mss.B.D25.31)
Summary:

Sends notes on volcanic islands for LH to read and return.

[Letter could be an inaccurate contemporary copy to which the copyist interpolated details, or a forgery. The address "Down House Orpington Kent" occurs nowhere else.]

Contributor:
Darwin Correspondence Project

DCP-LETT-771

From:
Charles Robert Darwin
To:
Leonard Horner
Date:
29 Aug [1844]
Source of text:
American Philosophical Society (Mss.B.D25.38)
Summary:

Thanks Horner for his letter [about Volcanic islands].

Discusses craters of elevation with respect to the views of Leopold von Buch and Élie de Beaumont. Compares Lyell’s views to those of continental geologists. Mentions reading A. D. d’Orbigny [Voyage dans l’Amérique méridionale (1835–47)].

Encloses note from Emma to Mrs Horner, inviting the Horners to visit Down.

Contributor:
Darwin Correspondence Project
Text Online

Faraday1656

From:
Leonard Horner
To:
Michael Faraday
Date:
2 December 1844
Source of text:
RI MS Conybeare Album, f.31
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday1657

From:
Michael Faraday
To:
Leonard Horner
Date:
3 December 1844
Source of text:
RI MS
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

HENSLOW-1249

From:
Leonard Horner
To:
J. S. Henslow
Date:
15 July 1845
Source of text:
The Royal Society MM/21/62
Summary:

No summary available.

Contributor:
Henslow Correspondence Project

RS-MM-001622

From:
Leonard Horner
To:
John Stevens Henslow
Date:
15 July 1845
Source of text:
MM/21/62, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

DCP-LETT-993

From:
Charles Robert Darwin
To:
Leonard Horner
Date:
[17 Aug – 7 Sept 1846]
Source of text:
American Philosophical Society (Mss.B.D25.53); DAR 145: 136–7 (enclosure)
Summary:

Discusses proposed survey of Glen Roy. Mentions Glen Roy theories of Agassiz and William Buckland. Includes a memorandum calling for a careful survey of the parallel roads of Glen Roy. Mentions M. A. Bravais ["On the lines of ancient level of the sea in Finmark", Q. J. Geol. Soc. Lond. 1 (1845): 534].

Contributor:
Darwin Correspondence Project

Herschel10614

From:
Leonard Horner
To:
Sir John Herschel
Date:
[2 November 1846]
Source of text:
RS:HS 9.493
Summary:

When on board the Excellent at Portsmouth he was deafened by the firing of a gun and has since suffered from 'singing' in his ear. Can JH recommend a relief? His daughter would like an engraving of JH.

Contributor:
John Herschel Project

DCP-LETT-977

From:
Charles Robert Darwin
To:
Leonard Horner
Date:
[23 Dec 1846 – Jan 1847]
Source of text:
DAR 145: 138
Summary:

Responds to LH’s comments on South America.

Thinks it unsound to designate a geological epoch after man. Doubts people’s confidence in date of man’s introduction.

Criticises A. D. d’Orbigny’s theory of elevation of the Cordillera.

Lists sections of South America of special interest.

Contributor:
Darwin Correspondence Project

DCP-LETT-1048

From:
Charles Robert Darwin
To:
Leonard Horner
Date:
[Jan 1847]
Source of text:
DAR 145: 139
Summary:

Responds to LH’s comments on South America.

Discusses inclination of lava stream.

Sketches in second edition of Journal of researches more accurate than in first.

Contributor:
Darwin Correspondence Project

Herschel10615

From:
Leonard Horner
To:
Sir John Herschel
Date:
[2 December 1849]
Source of text:
RS:HS 9.494
Summary:

Queries regarding the statement by William Herschel on the time taken for the light from the stars to reach the earth. Have there been any new developments in this theory?

Contributor:
John Herschel Project
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