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Darwin, C. R. in addressee 
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From:
Thomas Meehan
To:
Charles Robert Darwin
Date:
3 Mar 1873
Source of text:
DAR 171: 109
Summary:

Although he believes in evolution, TM feels that natural selection is an inadequate cause;

nor is he satisfied with E. D. Cope’s law of acceleration and retardation.

Discusses some of his work relating to nutrition and sex and colour and sex.

Contributor:
Darwin Correspondence Project
From:
Henry Stephen (Henry) Reeks
To:
Charles Robert Darwin
Date:
3 Mar 1873
Source of text:
DAR 88: 105
Summary:

Praise for and detailed comments on Expression.

Two cases of coloration in animals – one from sexual selection, the other helping to procure prey [see Descent, 2d ed., pp. 542–3].

Contributor:
Darwin Correspondence Project
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