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Eisen, G. A. in correspondent 
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From:
Charles Robert Darwin
To:
Gustavus Augustus Eisen
Date:
3 Dec 1871
Source of text:
The New York Public Library. Astor, Lenox and Tilden Foundations. Manuscripts and Archives Division. (Miscellaneous papers)
Summary:

Thanks GAE for memoir on earthworms [Bidrag till Skandinaviens Oligochaetfauna (1871)]. CD by chance is just now observing "one little point in their habits". Will be happy to learn something about the places frequented by the various species.

Contributor:
Darwin Correspondence Project