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From W. B. Tegetmeier   13 May 1872

Summary

Has found the skull of the horned cock.

With regard to CD’s suggestion about the possibility of producing a pigeon breed with differently coloured sexes, WBT reports the results of crossing blue and silver dragons; the silver offspring are almost always hens.

Would like the latest edition of the Origin.

Encloses notes on volume one [of Descent].

Encloses a photograph showing the bleaching effect of the sun’s rays on dun feathers in pigeons.

Author:  William Bernhard Tegetmeier
Addressee:  Charles Robert Darwin
Date:  13 May 1872
Classmark:  DAR 88: 175–6, DAR 90: 101, DAR 178: 83, DAR 193: 22
Letter no:  DCP-LETT-8322

To W. B. Tegetmeier   14 May [1872]

Summary

Thanks for information on sexual colours in pigeons.

Will send latest edition of Origin.

Author:  Charles Robert Darwin
Addressee:  William Bernhard Tegetmeier
Date:  14 May [1872]
Classmark:  Archives of the New York Botanical Garden (Charles Finney Cox Collection)
Letter no:  DCP-LETT-8326