To James Crichton-Browne 2 November 1
My dear Sir
I have some reason to believe, but have found it extremely difficult to get observations made, that the Platysma is very apt to contract during a rigor or shivering fit.2 If you have ever the chance to observe a patient in this state, will you kindly observe the muscle. I am just recommencing on my essay on Expression.3
Yours very sincerely | Ch. Darwin.
Asks JC-B to observe whether platysma muscle contracts during rigor or shivering fit.
Is just recommencing his essay on expression.
Please cite as
Darwin Correspondence Project, “Letter no. 8047,” accessed on 21 February 2017, http://www.darwinproject.ac.uk/DCP-LETT-8047