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Darwin, C. R. in correspondent 
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Wallace, Alfred Russel in author 
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Text Online
From:
Alfred Russel Wallace
To:
Charles Robert Darwin
Date:
[27] September 1857
Source of text:
Cambridge University Library: DAR 47: 145
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project
Text Online
From:
Alfred Russel Wallace
To:
Charles Robert Darwin
Date:
[March] 1858
Source of text:
Wallace, A. R. (1858). On the tendency of varieties to depart indefinitely from the original type. In: Darwin, C. R. & Wallace, A. R. On the tendency of species to form varieties; and on the perpetuation of varieties and species by natural means of selection. Journal of the Proceedings of the Linnean Society of London, Zoology : 3 (9): 45-62 [pp. 53-62]
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project