An army officer who recently arrived in Chicago f rom the Tellowstone Valley tells a story of what happened to a herd of buffaloes as they were migrating southward. The herd nurnbered two thousand five hundred head, and had been driven out of the Milk liiver country by the Indian hunters belonging to Sitting Buli's band. When they reached the river they ventured upon the ice with their customary coniidence. coming upon it with a solid front, and beginning the crossing with closed ranks. The stream at this point was very deep. When the front file, which was stretched out a quarter of a mile in length, had nearly gained the opposite shore, the ice suddenly gave way under them. Some trappers who were eye-witnesses of the scène said that it seemed as if a trench had been opened in the ice the whole length of the column. Some four or five hundred animáis tumbled into the opening all in a heap. Others feil in on top of them and sunk out of sight in a twinklig. By this time the rotten ice was breaking under the stilladvancing herd. The trappers say that in less than a minute the whole body of buffaloes had been precipitated into the river. They were wedged in so thickly that they could do nothing but struggle for a second and then disappear beneath the cakes of ice of the swift current. Not a beast in all that mighty herd tried to escape, but in a 3olid phalanx they marcued to their fatal bath in the "Big Muddy." In a minute from the time the first ice jroke not a buffalo's head or tail was ;o be seen.