I am looking for articles from the late 19th or early 20th century that describe the mental conditions of Native Americans and First Nations peoples from a medical perspective, rather than from an anthropological one. The earliest I have found are Dr. Hummers'”Insanity among the Indians” from 1911, Dr. A.A. Brill’s “Piblokto or Hysteria among Peary’s Eskimos,from 1913” and Dr. I Coriat’s “Psychoneuroses among primitive tribes”from 1915.
Please let me know if you know of anything earlier. I am particularly interested in dementia praecox, but am more generally interested in any discussion of “insanity.”
I can be reached at firstname.lastname@example.org