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Newton, Alfred in author 
1870-1879::1874::03::10 in date 
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From:
Alfred Newton
To:
Charles Robert Darwin
Date:
10 Mar 1874
Source of text:
DAR 172: 49
Summary:

Questions correctness of two statements in Origin: 1. That fulmar petrels are the most numerous birds in the world;

2. That the increase of one form of thrush in Scotland has been concomitant with the decline of another form.

Contributor:
Darwin Correspondence Project