Search: 1830-1839 in date 
Darwin, C. R. in correspondent 
Malcolmson, J. G. in correspondent 
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DCP-LETT-528

From:
John Grant Malcolmson
To:
Charles Robert Darwin
Date:
24 July 1839
Source of text:
DAR 39: 7–10
Summary:

Detailed evidence for and against geological elevation along coast of the Indian subcontinent, South Asia, and Arabia. Extensive references to geological literature about these areas.

Describes coral sand-dune and salt-marsh formation.

Contributor:
Darwin Correspondence Project

DCP-LETT-533

From:
John Grant Malcolmson
To:
Charles Robert Darwin
Date:
31 Aug 1839
Source of text:
DAR 39: 11
Summary:

Observations on the geology of Arabia.

Contributor:
Darwin Correspondence Project

DCP-LETT-535

From:
John Grant Malcolmson
To:
Charles Robert Darwin
Date:
7 Oct 1839
Source of text:
DAR 39: 12–14
Summary:

Sends notes on soundings made on coral banks in the China Sea.

His recent geological observations.

Finds a difficulty with CD’s erratic block theory.

Contributor:
Darwin Correspondence Project

DCP-LETT-559

From:
John Grant Malcolmson
To:
Charles Robert Darwin
Date:
[after 7 Oct 1839]
Source of text:
DAR 50: C24–5
Summary:

Comments on the discussion of erratic blocks in Journal of researches [pp. 619, 621–2].

Contributor:
Darwin Correspondence Project
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DCP-LETT-548

From:
John Grant Malcolmson
To:
Charles Robert Darwin
Date:
30 Nov 1839
Source of text:
DAR 39: 15–17
Summary:

Sends specimens of coralline with vermiform holes.

J. Allan’s observations of Aldabra and the Cormoros [see Coral reefs, p. 186] and news of his experiments on the growth of coral.

Contributor:
Darwin Correspondence Project
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