From:
Charles Robert Darwin
To:
George Howard Darwin
Date:
[23 Apr 1877]
Source of text:
DAR 210.1: 58
Summary:
"Frank has sent the cards here."
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Edward Sylvester Morse
Date:
23 Apr 1877
Source of text:
Peabody Essex Museum: Phillips Library (E. S. Morse Papers, E 2, Box 3, Folder 11)
Summary:
Thanks for ESM’s address ["What American zoologists have done for evolution", Proc. Am. Assoc. Adv. Sci. 25 (1876)].
J. A. Allen’s work is important as apparently showing change through direct action of [external] conditions.
CD has given up trying to understand E. D. Cope and Alpheus Hyatt on acceleration and retardation.
Contributor:
Darwin Correspondence Project