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Darwin, C. R. in correspondent 
Weir, J. J. in correspondent 
1870-1879::1870::07 in date 
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From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
4 July 1870
Source of text:
DAR 181: 83
Summary:

On mutations in rabbits.

Cytisus case is not a double graft.

Aggressive behaviour of birds of prey.

Contributor:
Darwin Correspondence Project