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Müller, Fritz in correspondent 
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From:
Johann Friedrich Theodor (Fritz) Müller
To:
Charles Robert Darwin
Date:
1 Apr 1867
Source of text:
DAR 110: B111–12; DAR 81: 167
Summary:

Cites cases of difference in coloration between the sexes of some species of Crustacea, annelids, and spiders.

Discusses dimorphic plants and self-sterility.

Outlines some experiments involving the crossing of different species of orchids.

Encloses extract from Carl Claus, Die freilebenden Copepoden [1863].

Contributor:
Darwin Correspondence Project