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From:
Charles Robert Darwin
To:
Leonard Jenyns; Leonard Blomefield
Date:
22 Feb [1868]
Source of text:
Bath Royal Literary and Scientific Institution
Summary:

Asks LJ which British birds are polygamous. His query relates to the possession by the male of secondary sexual characters.

CD is also interested in the numerical proportion of the sexes in birds.

Asks about the use of the horns in male lamellicorn or coprophagous beetles.

Contributor:
Darwin Correspondence Project