From:
Charles Robert Darwin
To:
William Henry Edwards
Date:
23 Apr [1872]
Source of text:
John Hay Library, Brown University (Albert E. Lownes Manuscript Collection, Ms. 84.2 (Box 3, Folder 38))
Summary:
Thanks for part nine of WHE’s [Butterflies of North America (1868–72)].
Comments on trimorphism in Papilio ajax.
Contributor:
Darwin Correspondence Project