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Darwin, C. R. in correspondent 
Weir, H. W. in correspondent 
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From:
Harrison William Weir
To:
Charles Robert Darwin
Date:
28 Mar 1871
Source of text:
DAR 181: 72
Summary:

Effects of first impregnation on litters from subsequent pregnancies.

Power of selective breeding to produce different varieties.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Harrison William Weir
Date:
[before 2 June 1876?]
Source of text:
Kent and Sussex Courier , 25 April 1884, p. 7
Summary:

‘Your mother ought indeed to feel proud that she had two sons such true naturalists as you and your brother [John Jenner Weir].’

Contributor:
Darwin Correspondence Project