The musicians, who, if I mistake not, are the war chiefs, were squatted on the ground, in true heathen style, to the left, and near the entrance, having Indian drums and rattles. The music was sounding when we entered. Presently the dancers came from behind the screen; their faces, arms, and the upper part of their bodies were painted white; a soft, white buckskin skirt, secured about the loins, descended nearly to the ankles, while the breech-cloth,--blue on this occasion,--hanging to the ground, outside the skirt, both in front and behind, completed the dress. They faced the medicine--shall I say idols? for it was conducted with all the solemnity of worship,--jumping up and down in true time with the beating of the drums, while a bone whistle in their mouths, through which the breath escaped as they jumped about, and the singing of the women, completed the music. The dancers continued to face the medicine, with arms stretched upwards and towards it,--their eyes as it were riveted to it. They were apparently oblivious to all surroundings, except the music and what was before them. After some time, a middle-aged man, painted as the others, but wearing a buffalo robe, issued from behind the screen, facing the entrance, but having his eyes fixed upon the sun, upon which he stood gazing, without winking or moving a muscle, for some time, then began slowly to incline his head from side to side, as if to avoid some obstruction in his view of it, swaying his body slightly, then, stepping slowly from side to side--forward--backward--increasing his motions, both in rapidity and extent, until in appearance nearly frantic, his robes fell off, leaving him--except his blue breechclout--entirely naked. In this condition he jumped and ran about the enclosure,--head, arms, and legs all equally participating in the violence of his gestures,--every joint of his body apparently loosened, his eyes only fixed. I wondered how, with every joint apparently dislocated, and every muscular fibre relaxed, he could maintain the upright position. Thus he continued to exercise without ceasing, or once removing his eyes from the sun, until the sweat ran down in great rolling drops, washing the white paint into streaks no more ornamental than the original painting, and he was at length compelled to retire, from mere exhaustion, the other dancers still continuing their exercises.