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Darwin, C. R. in correspondent 
Weir, J. J. in correspondent 
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From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
27 Dec 1881
Source of text:
DAR 148: 467
Summary:

Discusses mule’s resemblance to parents.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
29 Dec 1881
Source of text:
DAR 148: 340
Summary:

Comments on JJW’s observations on mule

and hermaphroditism in hybrid moths.

Contributor:
Darwin Correspondence Project