Text Online
From:
W. J. Hooker
To:
J. S. Henslow
Date:
20 December 1857
Source of text:
American Philosophical Society Library The Scientists Collection I 509.L56
Summary:
No summary available.
Contributor:
Henslow Correspondence Project
Text Online
From:
Alfred Russel Wallace
To:
Samuel Stevens
Date:
20 December 1857
Source of text:
Wallace, A. R. (1858). [Letter from Alfred R. Wallace dated 20 Dec. 1857, Amboyna; communicated by Samuel Stevens]. Zoologist : 16 (191-192): 6120-6124
Summary:
No summary available.
Contributor:
Alfred Russel Wallace Correspondence Project
From:
Hewett Cottrell Watson
To:
Charles Robert Darwin
Date:
20 Dec [1857]
Source of text:
DAR 98: A13–14
Summary:
Finds he cannot annotate CD’s list of subspecies and varieties as wanted. Mentions again his difficulties with "species"; he "cannot find the proof of species being definite and immutable whatever they may seem to be at any one time and spot".
Contributor:
Darwin Correspondence Project
