Search: Darwin Correspondence Project in contributor 
Darwin, C. R. in correspondent 
Meehan, Thomas in correspondent 
1870-1879::1873 in date 
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From:
Charles Robert Darwin
To:
Thomas Meehan
Date:
19 Mar [1873]
Source of text:
DAR 146: 352
Summary:

Does not understand TM’s views on sex and vitality.

Agrees no real "essences" in genera, only broken groups of species.

Contributor:
Darwin Correspondence Project
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