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From:
Karl Heinrich Hermann (Hermann) Hoffmann
To:
Charles Robert Darwin
Date:
17 Apr 1871
Source of text:
DAR 166: 229
Summary:

Comments on Descent.

Reports a case of protective coloration of bugs on Tilia

and observations on frogs fighting [see Descent, 2d ed., pp. 281, 350].

Encloses drawings of chicken feet.

Contributor:
Darwin Correspondence Project