Another ophthalmia, which also results in the destruction of the faculty of vision, commences with a superabundant secretion of the fluid of the lachrymal duct, succeeded by inflammation of the lids; the sight becomes gradually debilitated, until at length the pupil assumes an opake white appearance; probably fistula lachrymalis. Temporary blindness, which sometimes eventuates in permanent loss of sight, occurs during the winter to incautious travellers who pass over the prairies covered with snow, from which the solar light is so brilliantly reflected. A party that accompanied Mr. Dougherty on a journey, being thus exposed, became unable to distinguish objects, and had not his sight been preserved, they might never have regained their stockade. The blind are not neglected by their family and friends; on the contrary, we had several opportunities of observing them to be well clothed and fed, and much at their ease. When superannuated, however, they are not exempted from the fate attendant on that state. An affection, or pain in the breast, distinguished by the name of Mong-ga-ne-a, seems to be the consequence of excessive indulgence in tobacco, and the {241} habitual inhaling of the smoke of it into the lungs. In their attempts to alleviate this complaint, the magi affect to extract from the part, by suction, balls and pellets of hair, and other extraneous substances, which they had previously concealed in their mouths for the purpose of deceiving the patient. An individual applied to one of our party to cure him of this pain, but being advised to desist from the indulgence of tobacco smoking, he appeared rather willing to bear with his disease. They sometimes say that their liver pains them, a disorder which they call Ta-pe-ne-a. They are not exempt from catarrhs, the consequence of great exposure to sudden vicissitudes of temperature; a disease similar to the influenza is sometimes prevalent, and known by the name of Hoh-pa. A deaf and dumb boy occurred in the Oto nation; an adult with a curved spine; and another with an inflexible knee, the leg forming a right angle with the thigh. But we have not observed any one of them with either eye deviating from the true line of vision. The medical and surgical knowledge of the Omawhaws is very inconsiderable, and what there is, is so much blended with ceremonies, which to us appear superstitious, inert, and absurd, that it would seem, that, with the exception of a few instances, they have no reasonable mode of practice.