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Darwin, C. R. in addressee 
Trimen, Roland in correspondent 
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From:
Roland Trimen
To:
Charles Robert Darwin
Date:
31 Dec 1867
Source of text:
DAR 82: A30–1
Summary:

On ocelli.

Sexual differences and proportion of sexes in butterflies.

Coleoptera.

[See Descent 1: 310; 2: 132.]

Contributor:
Darwin Correspondence Project
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