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DCP-LETT-785

From:
Henry Denny
To:
Charles Robert Darwin
Date:
30 Oct 1844
Source of text:
DAR 205.3: 273
Summary:

Has never heard of species of same genus [of parasites] being found on both birds and mammals, or different genera and species being found on animals in the domestic and wild states. Implications of this for relationship of aperea and guinea-pig.

Contributor:
Darwin Correspondence Project
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DCP-LETT-4753

From:
Henry Denny
To:
Charles Robert Darwin
Date:
23 Jan 1865
Source of text:
DAR 80: B150–1
Summary:

Species of lice and the animals they infest. Different kinds of dogs, fowls, and pigeons are infested by the same species of Pediculi [see Descent 1: 219].

Contributor:
Darwin Correspondence Project
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