It chanced that, as he ended his oration, a steamer, the first that had ever ploughed the Missouri river, fired a salute from a twelve-pounder gun, as she passed the Mandan village. To the Indians the roar of the cannon was like the voice of thunder, and their joy knew no bounds. The successful medicine-man was loaded with valuable gifts; mothers hastened to offer their daughters to him in marriage; and the elder medicine-men issued from the lodge, eager to enrol him in their order. But, from the roof of the lodge, where he had taken his stand, Wak-a-dah-ha-ku discovered the steamer, as she dashed up the river, and discharged her gun again and yet again. He hastened to address the chiefs and people, explaining that the sounds they heard were not those of thunder, but that his potent medicine had brought a thunder-boat to the village. To the river-bank rushed the wondering population, and the rest of the day was spent in a fever of excitement, in which the rain-maker was forgotten. Just before sunset his quick eyes discovered a black cloud, which, unobserved by the noisy multitude, swiftly came up from the horizon. At once he assumed his station on the roof of the lodge; strung his bow and made ready his arrow; arrested the attention of his fellows by his loud and exultant speech; and as the cloud impended over the village, shot his arrow into the sky. Lo, the rain immediately descended in torrents, wetting the rain-maker to the skin, but establishing in everybody’s mind a firm and deep conviction of his power.

All night raged the storm; but unhappily a flash of lightning penetrated one of the wigwams, and killed a young girl. The newly-made medicine-man was sorely terrified by this catastrophe, which he feared the chiefs would impute to him, making him responsible for the girl’s death, and punishing him accordingly.

But he was a man of much astuteness, and early in the morning, collecting three of his best horses, he mounted the lodge-roof again, and for a third time addressed the people of his tribe.

“Friends,” he said, “my medicine was too strong, I am young, and I did not know where to stop. I did not regulate its power. And now the wigwam of Mah-sish is laid low, and many are the eyes that weep for Ko-ka, the antelope. Wak-a-dah-ha-ku gives three horses to rejoice the hearts of those who sorrow for Ko-ka. His medicine is great. His arrow pierced the black cloud, and the lightning came, and with it the thunder-boat. Who says that the medicine of Wak-a-dah-ha-ku is not strong?”

This artful address was received with much favour, and thenceforward Wak-a-dah-ha-ku was known as the “Big Double Medicine.”

Of the medical practices of these medicine-men Mr. Kane, in his “Wanderings of an Artist,” furnishes a striking illustration.

“About ten o’clock at night,” he says, “I strolled into the village, and on hearing a great noise in one of the lodges, I entered it, and found an old woman supporting one of the handsomest Indian girls I had ever seen. She was in a state of nudity. Cross-legged and naked, in the middle of the room, sat the medicine-man, with a wooden dish of water before him; twelve or fifteen other men were sitting round the lodge. The object in view was to cure the girl of a disease affecting her side. As soon as my presence was noticed, a space was cleared for me to sit down.

“The officiating medicine-man appeared in a state of profuse perspiration, from the exertions he had used, and soon took his seat among the rest, as if quite exhausted; a younger medicine-man then took his place in front of the bowl, and close beside the patient.

“Throwing off his blanket, he commenced singing and gesticulating in the most violent manner, whilst the others kept time by beating with little sticks in hollow wooden bowls and drums, singing continually. After exercising himself in this manner for about half an hour, until the perspiration ran down his body, he darted suddenly upon the young woman, catching hold of her side with his teeth, and shaking her for a few minutes, while the patient seemed to suffer great agony. He then relinquished his hold, and cried out he had got it, at the same time holding his hands to his mouth; after which he plunged them in the water and pretended to hold down with great difficulty the disease which he had extracted, lest it might spring out and return to its victim.

“At length, having obtained the mastery over it, he turned round to me in an exulting manner, and held up something between the finger and thumb of each hand, which had the appearance of a piece of cartilage; whereupon one of the Indians sharpened his knife, and divided it in two, having one in each hand. One of the pieces he threw into the water and the other into the fire, accompanying the action with a diabolical noise which none but a medicine-man can make. After which he got up perfectly satisfied with himself, although the poor patient seemed to me anything but relieved by the violent treatment she had undergone.”