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From:
Charles Robert Darwin
To:
Thomas Campbell Eyton
Date:
9 June [1857]
Source of text:
American Philosophical Society (Mss.B.D25.146)
Summary:

Comments on TCE’s work [Catalogue of the species of birds in his collection (1856)].

Mentions African dog’s skin.

Asks about colours of horses

and about variation in tracheae of male birds.

Contributor:
Darwin Correspondence Project