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 that darkened the prairie. The air was filled with frosty flakes, the snow was deep and clinging, but all day and until after dark the exciting hunt held them to the saddle, and only when they came to the fire did the participants realise that their hands and feet were frostbitten.

Cold and colder grew the days. Two suns shone in the sky, prognosticator of still deeper frost. Brilliant northern lights glowed along the Arctic, but still they chased the buffalo until the morning of December 13, when Dr. Saugrain's thermometer stood twenty degrees below zero at sunrise. In fur caps, coats, mittens, and double moccasins they brought home horseload after horseload of juicy beef to hang in the winter storehouse. And fortunately, too, for one day they awoke to find the buffalo gone.

Some winters there was great suffering for food among the Mandans, but this was destined to be a year of plenty. Out of their abundance the chiefs, also, came to the fort with their dog sleds loaded with meat for their friends at the garrison.

X

THE FIRST DAKOTA CHRISTMAS

On Christmas eve the stockade was finished and the gate was shut. With forty-five men and a blunderbuss Fort Mandan stood impregnable to any force the northern savages could bring against it.

But there was no hostility,—far from it. From curiosity or for trade the Indians came in throngs, until on Christmas eve Captain Lewis sent out the announcement: "Let no one visit us to-morrow. It is our great medicine day."

Before daylight the wondering redmen were aroused from their buffalo couches by three volleys fired from the fort. Awe-struck they sat up and whispered: "White