Medicine of this degree is not unfavorably regarded by the masses; but instances of the highest grades are extremely rare, and the claimants of such powers few in number. The Black Snake and the Kootenai, before referred to, are, if still alive, the only instances with which I am acquainted of admitted and well-authenticated powers so great and incredible. The common use of medicine is in affairs of war and the chase. Here the medicine-man will be found, in many cases, to exhibit a prescience truly astounding. Without attempting a theory to account for this, a suggestion may be ventured. The Indian passes a life that knows no repose. His vigilance is ever on the alert. No hour of day or night is to him an hour of assured safety. In the course of years, his perceptions and apprehensions become so acute, in the presence of constant danger, as to render him keenly and delicately sensitive to impressions that a civilized man could scarce recognize. The Indian, in other words, has a development almost like the instinct of the fox or beaver. Upon this delicate barometer, whose basis is physical fear, impressions (moral or physical, who shall say?) act with surprising power. How this occurs, no Indian will attempt to explain. Certain conjurations will, they maintain, aid the medicine-man to receive impressions; but how or wherefore, no one pretends to know. This view of _minor medicine_ is the one which will account for many of its manifestations. Whether sound or defective, we will not contend. The medicine-man whom I knew best was Ma-que-a-pos (the Wolf's Word), an ignorant and unintellectual person. I knew him perfectly well. His nature was simple, innocent, and harmless, devoid of cunning, and wanting in those fierce traits that make up the Indian character. His predictions were sometimes absolutely astounding. He has, beyond question, accurately described the persons, horses, arms, and destination of a party three hundred miles distant, not one of whom he had ever seen, and of whose very existence neither he, nor any one in his camp, was before apprised. On one occasion, a party of ten voyageurs set out from Fort Benton, the remotest post of the American Fur Company, for the purpose of finding the Kaime, or Blood Band of the Northern Blackfeet. Their route lay almost due north, crossing the British line near the Chief Mountain (Nee-na-sta-ko) and the great Lake O-max-een (two of the grandest features of Rocky Mountain scenery, but scarce ever seen by whites), and extending indefinitely beyond the Saskatchewan and towards the tributaries of the Coppermine and Mackenzie Rivers. The expedition was perilous from its commencement, and the danger increased with each day's journey. The war-paths, war-party fires, and similar indications of the vicinity of hostile bands, were each day found in greater abundance.