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1860-1869::1869::12::02 in date 
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From:
George Howard Darwin
To:
Charles Robert Darwin
Date:
[2 Dec 1869]
Source of text:
DAR 210.2: 17
Summary:

Discusses some calculations which he is doing for CD on the ratios of red and brown colouring in some animals.

Contributor:
Darwin Correspondence Project
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