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To John Jenner Weir   27 February [1868]

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.

Author:  Charles Robert Darwin
Addressee:  John Jenner Weir
Date:  27 Feb [1868]
Classmark:  Field Museum of Natural History, Chicago
Letter no:  DCP-LETT-5942

From J. J. Weir   [after 27 February] 1868

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Summary

Trusts his paper ["Apterous Lepidoptera" (1867), printed for the West Kent Natural History, Microscopical, and Photographic Society] showed that he is thoroughly a disciple of CD.

Cites evidence that birds undoubtedly distinguish colours. [see Descent 2: 110.]

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  [after 27 Feb] 1868
Classmark:  DAR 84.1: 77–80
Letter no:  DCP-LETT-5939