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DCP-LETT-2217

From:
Charles Robert Darwin
To:
Jean Louis Rodolphe (Louis) Agassiz
Date:
21 Feb [1858]
Source of text:
Houghton Library, Harvard University (MS Am 1419: 279)
Summary:

Thanks LA for presentation copy of Contributions [to the natural history of the United States of America, vol. 1, pt 1: Essay on classification, and vol. 1, pt 2: North American Testudinata (1857)]. Flattered; CD sees there is much of highest interest to him.

Contributor:
Darwin Correspondence Project

DCP-LETT-2218

From:
Charles Robert Darwin
To:
Asa Gray
Date:
21 Feb [1858]
Source of text:
Archives of the Gray Herbarium, Harvard University (21)
Summary:

Asks whether botanists tend to record varieties more carefully in large genera or small genera.

Wants information on the ranges of varieties of a species compared to the range of the species.

Contributor:
Darwin Correspondence Project
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