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Darwin, C. R. in correspondent 
Hensen, Victor in correspondent 
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From:
Christian Andreas Victor (Victor) Hensen
To:
Charles Robert Darwin
Date:
25 May 1881
Source of text:
DAR 166: 145
Summary:

Mentions article by P. E. Müller on worms: "Structur over skovjord [forest soil]" [Tidsk. Skovbrug 3 (1878)].

Contributor:
Darwin Correspondence Project
From:
Christian Andreas Victor (Victor) Hensen
To:
Charles Robert Darwin
Date:
10 Oct 1881
Source of text:
DAR 166: 146
Summary:

Thanks CD for Earthworms. Not convinced that worms derive nutrition from eating soil.

Contributor:
Darwin Correspondence Project