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To W. E. Darwin   16 April [1868]

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Summary

Asks WED whether Langstaff could make some observations on certain facial muscles in expression.

Author:  Charles Robert Darwin
Addressee:  William Erasmus Darwin
Date:  16 Apr [1868]
Classmark:  DAR 210.6: 129
Letter no:  DCP-LETT-6124

From J. J. Weir   16 April 1868

Summary

Describes a curious litter of rabbits.

Pairing of rooks, courtship of golden pheasant.

Behaviour of finch hybrids.

Seasonal coloration of birds; bright plumage results from sexual selection.

Author:  John Jenner Weir
Addressee:  Charles Robert Darwin
Date:  16 Apr 1868
Classmark:  DAR 84.1: 71–2, 140, DAR 181: 75
Letter no:  DCP-LETT-6125