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1880-1889::1880::12 in date 
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From:
Charles Robert Darwin
To:
James Murdoch (James) Geikie
Date:
13 Dec 1880
Source of text:
DAR 144: 334
Summary:

Comments on Prehistoric Europe.

Asks JG’s opinion of Daniel Mackintosh’s paper ["Results of a systematic survey of erratic blocks", Q. J. Geol. Soc. Lond. 35 (1879): 425–53].

Comments on loess.

Feels uneasy about streams of stone of Falkland Islands.

Contributor:
Darwin Correspondence Project
From:
James Murdoch (James) Geikie
To:
Charles Robert Darwin
Date:
20 Dec 1880
Source of text:
DAR 165: 32
Summary:

Discusses Prehistoric Europe; establishing the existence of interglacial periods; iceberg vs glacier transport of erratic boulders.

Contributor:
Darwin Correspondence Project
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