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To Friedrich Rolle   31 May 1868

Summary

Thanks for references.

CD in error about Torfschwein.

Comments on German publications.

Asks about breed of fowl in which females have spurs.

Author:  Charles Robert Darwin
Addressee:  Friedrich Rolle
Date:  31 May 1868
Classmark:  Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt (SNG-Archiv: Malakol.: Nachlass Rolle)
Letter no:  DCP-LETT-6217

To Friedrich Rolle   24 November 1868

Summary

Thanks for information on fowls.

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

Author:  Charles Robert Darwin
Addressee:  Friedrich Rolle
Date:  24 Nov 1868
Classmark:  Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt (SNG-Archiv: Malakol.: Nachlass Rolle)
Letter no:  DCP-LETT-6472

From Friedrich Rolle   28 May 1868

Summary

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

Cites numerous German publications relating to CD’s theory.

Author:  Friedrich Rolle
Addressee:  Charles Robert Darwin
Date:  28 May 1868
Classmark:  DAR 176: 204
Letter no:  DCP-LETT-6213

From Friedrich Rolle   20 November 1868

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.

Author:  Friedrich Rolle
Addressee:  Charles Robert Darwin
Date:  20 Nov 1868
Classmark:  DAR 176: 205
Letter no:  DCP-LETT-6468
Document type
letter (4)
Correspondent
Darwin, C. R.[X]
Rolle, Friedrich[X]
Date
1868
05 (2)
11 (2)
letter