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From:
Christian Gottfried Ehrenberg
To:
Charles Robert Darwin
Date:
8 Apr 1845
Source of text:
DAR 39: 60–1b
Summary:

Discusses table of Atlantic dust samples. Thinks dust came from South America.

Discusses Patagonian tuff samples.

Answers CD’s query about material from Pampas. Believes deposit made in brackish water.

Criticises account of Atlantic dust in F. J. F. Meyen [Reise um die Erde (1834–5)].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Ernst Dieffenbach
Date:
8 Apr [1845]
Source of text:
Swiss National Library, Helvetic Archives (SLA-Rhyn-06-d/01)
Summary:

Thanks ED for copy of German edition of Journal of researches. Asks him to write and ask German publisher to return plates and MS.

Contributor:
Darwin Correspondence Project