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Tegetmeier, W. B. in author 
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From:
William Bernhard Tegetmeier
To:
Charles Robert Darwin
Date:
1 Feb 1864
Source of text:
DAR 178: 61
Summary:

Would like his fowl skulls back.

Breeding experiments seem to show mongrels are just as fertile as pure breeds.

Contributor:
Darwin Correspondence Project
From:
William Bernhard Tegetmeier
To:
Charles Robert Darwin
Date:
[before 21 Dec 1864]
Source of text:
DAR 178: 60
Summary:

Sends paper on mimetic analogy [Intellect. Obs. 6 (1864): 307–13].

Mongrel experiments are progressing, but he has observed no signs of sterility.

Contributor:
Darwin Correspondence Project