tember 14, Capt. James JJoyie. . .Important Archaeological .Discovery.fFrom the Prairie du Cliieti Union.]I ‘ - r*J. W* Emmert, a gentleman who is exploring for the benefit of the Smithsonian Institute of Washington, made a remarkable discovery in a mound at Sans Coulie, about seven miles from the city. At a depth of nine feet he took out .pieces of skeleton that had undoubtedly been buried many years, possibly hundreds of years, i The bones that were not too much de-' cayed indicated a man at least seven feet tall. Near him were some of the best- implements and ornaments that have ever been unearthed in the West —a copper ax, weighing one and a half pounds, copper heads, copper awls or needles, copper breastplate of curious construction, and copper ornaments, evidently for the ears, with flint spear-heads and arrow-heads, andtwo large spear-heads of obsideon, a material which, in the natural state, is found only in Mexico, are a part only of the curious things found in this mound. A fine lot of bears’ teeth were also found, with holes drilled through them; these teeth were finely polished, and in good condition.