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To James Crichton-Browne   22 May 1869

Summary

Thanks for MS observations on expression. Discusses hair standing on end in terror and rage. Asks JC-B to observe contraction of platysma myoides. "Your description of the grinning and exposure of the canine teeth under furious rage is excellent. I presume that you would not object to my quoting it." Asks about contraction of "grief muscles". Comments on blushing. Offers to send book by G. B. A. Duchenne [Mécanisme de la physionomie humaine (1862)].

Author:  Charles Robert Darwin
Addressee:  James Crichton-Browne
Date:  22 May 1869
Classmark:  DAR 143: 327
Letter no:  DCP-LETT-6755

To James Crichton-Browne   8 June 1869

Summary

Thanks for information about expression.

Comments on JC-B’s photographs of insane people.

Sends copy of Duchenne [see 6755].

Asks for further information about platysma, his bête noire for a year or two.

Author:  Charles Robert Darwin
Addressee:  James Crichton-Browne
Date:  8 June 1869
Classmark:  DAR 143: 328
Letter no:  DCP-LETT-6779

From James Crichton-Browne   1 June 1869

Summary

Discusses the bristling of hair in melancholics and the action of the platysma myoides muscle and the grief muscles in the insane.

Author:  James Crichton-Browne
Addressee:  Charles Robert Darwin
Date:  1 June 1869
Classmark:  DAR 161: 309
Letter no:  DCP-LETT-6769
Document type
letter (3)
Correspondent
Crichton-Browne, Jamesdisabled_by_default
Darwin, C. R.disabled_by_default