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From:
Charles Robert Darwin
To:
Karl Heinrich Hermann (Hermann) Hoffmann
Date:
20 Apr [1871]
Source of text:
DAR 145: 133
Summary:

Obliged for letter about dog.

Comments on HH’s article ["Zur Geschlechtsbestimmung", Bot. Ztg. 29 (1871): 81–9, 97–109].

Contributor:
Darwin Correspondence Project