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DCP-LETT-7459

From:
Charles Robert Darwin
To:
William James Erasmus (Erasmus) Wilson
Date:
[26 Jan – 3 Feb 1871]
Source of text:
DAR 96: 91
Summary:

Seeks information and observations on the contraction of the orbicular muscles as a consequence of skin irritation.

Contributor:
Darwin Correspondence Project
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DCP-LETT-7639

From:
Charles Robert Darwin
To:
William James Erasmus (Erasmus) Wilson
Date:
29 Mar [1871]
Source of text:
DAR 96: 99
Summary:

Wonders whether correspondent might possibly know of any cases in which intense concentration of the mind on one portion of the skin produces dilation of the capillary vessels and hence reddening of the area.

Contributor:
Darwin Correspondence Project
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