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DCP-LETT-8306

From:
Charles Robert Darwin
To:
Henry Johnson
Date:
2 May [1872]
Source of text:
Torquay Museum Society (AR470)
Summary:

Thanks for notes on worm-castings. Amount of ammonia surprises CD. David Forbes asserts that published analysis of carbon in vegetable matter valueless. Suspects that worms search for food and do not blindly swallow earth.

Contributor:
Darwin Correspondence Project

DCP-LETT-12626

From:
Charles Robert Darwin
To:
Henry Johnson
Date:
9 June 1880
Source of text:
Torquay Museum Society (AR471)
Summary:

Thanks for enclosures.

Remembers Edward Vivian.

Glad to hear of flint tools.

Contributor:
Darwin Correspondence Project
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