Search: Weir, J. J. in addressee 
1860-1869::1868::05 in date 
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DCP-LETT-6165

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
7 May [1868]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

Thanks JJW for his great assistance.

Discusses sexual selection in birds.

Sends queries on secondary sexual characteristics of birds.

Has often marvelled at the different growth of the flowering and creeping branches of ivy.

Contributor:
Darwin Correspondence Project

DCP-LETT-6537

From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
[before 18 May 1868]
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

CD cannot remember whether correspondent believed the wing that Gallus bankiva opens and scrapes before the female, is ornamented. He fears it is not.

Contributor:
Darwin Correspondence Project
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