Search: Charles Darwin in collection 
Darwin, C. R. in correspondent 
Dunker, Wilhelm in correspondent 
1850-1859::1850 in date 
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From:
Charles Robert Darwin
To:
Wilhelm Bernhard Rudolph Hadrian (Wilhelm) Dunker
Date:
3 Mar [1850]
Source of text:
Antiquariat Inlibris (dealers)
Summary:

Explains that he is working on recent and fossil Cirripedia, and asks if WD can aid him with specimens of Roemer’s Pollicipes species.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Wilhelm Bernhard Rudolph Hadrian (Wilhelm) Dunker
Date:
20 Sept 1850
Source of text:
Det Kongelige Bibliotek, Copenhagen (NKS 4941 I, 4to)
Summary:

Thanks for fossil cirripede specimens.

Describes progress on his book [Fossil Cirripedia] and his work on living cirripedes. Asks to borrow specimens.

Comments on book [F. C. L. Koch and Wilhelm Dunker, Norddeutschen Oolithgebildes (1837)].

Sends thanks to Friedrich Adolph Roemer and R. A. Philippi for specimens.

Contributor:
Darwin Correspondence Project