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DCP-LETT-4759

From:
Alfred Russel Wallace
To:
Charles Robert Darwin
Date:
31 Jan [1865]
Source of text:
DAR 106: B22–3
Summary:

Sends papers with comments. Convinced that the Aru pig is a species peculiar to New Guinea fauna, not a domestic animal that ran wild.

Admires CD’s paper ["Three forms of Lythrum", Collected papers 2: 106–31].

Contributor:
Darwin Correspondence Project
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Herschel11518

From:
Sir Charles Lyell
To:
Sir John Herschel
Date:
[31 January 1865]
Source of text:
RS:HS 11.431
Summary:

Origin of siliceous minerals sent by JH. Planning tenth edition of Principles of Geology. Convinced that changes in position of land and sea were principal causes of climate changes. Questions [James] Croll's theory of astronomical influences on climate, based on data from U. J. J. Le Verrier. Compares earth-pillars in Rhone valley with those in Tyrol. Wants tenth edition to include woodcut of JH's [1821?] drawings of earth-pillars.

Contributor:
John Herschel Project

Herschel6554

From:
Bernard Cracroft
To:
Sir John Herschel
Date:
[31 January 1865]
Source of text:
RS:HS 5.297
Summary:

Thanks for kind letter. Pamphlets should have reached him by now. Discourses on the effects of cold and heat on the spinal cord.

Contributor:
John Herschel Project

Herschel6859

From:
Sir John Herschel
To:
Warren de La Rue
Date:
[31 January 1865]
Source of text:
RS:HS 6.167 & 24.84
Summary:

Returns the certificates duly signed and also Angelo Secchi's letter, which he was pleased to see. Elaborates on the possible causes of James Nasmyth's 'willow leaves.'

Contributor:
John Herschel Project
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