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To Erasmus Wilson [26 January – 3 February 1871]
Summary
Seeks information and observations on the contraction of the orbicular muscles as a consequence of skin irritation.
| Author: | Charles Robert Darwin |
| Addressee: | William James Erasmus (Erasmus) Wilson |
| Date: | [26 Jan – 3 Feb 1871] |
| Classmark: | DAR 96: 91 |
| Letter no: | DCP-LETT-7459 |
To Erasmus Wilson 29 March [1871]
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.
| Author: | Charles Robert Darwin |
| Addressee: | William James Erasmus (Erasmus) Wilson |
| Date: | 29 Mar [1871] |
| Classmark: | DAR 96: 99 |
| Letter no: | DCP-LETT-7639 |
