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DCP-LETT-5942

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
27 Feb [1868]
Source of text:
Field Museum of Natural History, Chicago
Summary:

Thanks JJW for his paper on apterous insects [see 5939], which contained much new information.

Asks JJW for any information he may have on sexual selection.

Describes an experiment, still untried, of staining tail-feathers of male pigeons in bright colours to find the effect on courtship.

Contributor:
Darwin Correspondence Project

DCP-LETT-5958

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
29 Feb [1868]
Source of text:
Field Museum of Natural History, Chicago
Summary:

JJW’s note on birds was one of the most interesting CD has ever received. Asks several questions. CD is puzzled by cases of magpies whose mates were killed but who always immediately found others.

Alexander Wallace denies any effect of colour in sexual selection among Lepidoptera.

Contributor:
Darwin Correspondence Project
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