Search: Johnson, Henry (a) in author 
1870-1879::1872 in date 
Darwin, C. R. in addressee 
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From:
Henry Johnson
To:
Charles Robert Darwin
Date:
12 Jan [1872?]
Source of text:
DAR 168: 65
Summary:

Sends a map of a field showing the effect of earthworms.

Contributor:
Darwin Correspondence Project