Search: Darwin, C. R. in correspondent 
Rolle, Friedrich in correspondent 
1860-1869::1868 in date 
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DCP-LETT-6213

From:
Friedrich Rolle
To:
Charles Robert Darwin
Date:
28 May 1868
Source of text:
DAR 176: 204
Summary:

Questions CD’s view in Variation that Torfschwein formerly ranged from Europe to China.

Cites numerous German publications relating to CD’s theory.

Contributor:
Darwin Correspondence Project

DCP-LETT-6217

From:
Charles Robert Darwin
To:
Friedrich Rolle
Date:
31 May 1868
Source of text:
Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt (SNG-Archiv: Malakol.: Nachlass Rolle)
Summary:

Thanks for references.

CD in error about Torfschwein.

Comments on German publications.

Asks about breed of fowl in which females have spurs.

Contributor:
Darwin Correspondence Project

DCP-LETT-6468

From:
Friedrich Rolle
To:
Charles Robert Darwin
Date:
20 Nov 1868
Source of text:
DAR 176: 205
Summary:

Has little information about hens with spurs. Encloses information from Robert Oettel and C. F. Friderich, and from J. F. Blumenbach’s Vergleichende Anatomie [1805]. Recommends various German publications.

Contributor:
Darwin Correspondence Project

DCP-LETT-6472

From:
Charles Robert Darwin
To:
Friedrich Rolle
Date:
24 Nov 1868
Source of text:
Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt (SNG-Archiv: Malakol.: Nachlass Rolle)
Summary:

Thanks for information on fowls.

Glad to see extracts from Blumenbach about sexual differences in fowls.

Contributor:
Darwin Correspondence Project
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