From George Gibbs 31 March 1867
Smithsonian Institution | Washington.
Mch 31. 1867
Charles Darwin, Esq.
Professor Baird has shown me your circular, “Queries about expression”.1 After twelve years residence among the Indians of the North West Coast of America, I find to my surprise, that I can only answer one of them positively—2 The Indians of Puget’s Sound, a branch of the Sélish family, whose color is of a rather light shade of sienna (even where of unmixed blood,) certainly do blush from shame or anger, and the darkening of the skin is palpable.3 As to the other points I will not pretend to answer until I can observe with the certainty you desire.
One point however, not touched upon you, I will mention, and that is that they frequently, if not always, indicate direction by throwing the head back and protruding the chin, instead of with the finger.
A peculiarity which, though hardly coming under your apparent limits, is noticeable, that in designating the height of a human being, as a child, the hand is held edgewise; in the case of an animal, flatwise as we hold it.4
Very respectfully | Your obt servt | George Gibbs
Finds that after 12 years among north-western Indians he can answer positively only one of CD’s queries about expression. They do blush from shame or anger.