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From James Dixon 7 May 1880
Summary
Corrects CD’s statement [Descent 1: 19] that the platysma myoides muscle cannot be brought into voluntary action. He can move every one of his facial muscles.
Author: | James Dixon |
Addressee: | Charles Robert Darwin |
Date: | 7 May 1880 |
Classmark: | DAR 162: 185 |
Letter no: | DCP-LETT-12598 |