We give a cut of a copper ax found in one of the Ohio mounds. Copper axes have lately been found quite frequently in mounds near Davenport, Iowa, and in most cases before being deposited in the mounds, they had been wrapped in cloth. Copper ornaments are a more common find. Bracelets, beads, and ear ornaments are numerous. Our next cut represents some very fine bracelets found in a mound near Chillicothe, Ohio, Copper tools and weapons have been found quite frequently on the surface, but we are not sure in this case whether they are not the work of recent Indians. The early explorers noticed the presence of copper ornaments among the Indians. “When Henry Hudson discovered, in 1609, the magnificent river that bears his name, he noticed among the Indians of that region pipes and ornaments of copper.” The account says: “They had red copper tobacco pipes, and other things of copper they did wear about their necks.”88 De Soto also noticed among the Southern Indians axes of copper. Other accounts could be quoted showing that the Indians were well acquainted with copper.89 The fact is, in this matter also, it is impossible to draw a dividing line between relics of the Mound Building tribes and the Indians. However, the Mound Builders were certainly acquainted with copper, but to their minds it was only a singular stone, one that they could hammer, into a desired shape. Copper Bracelets. Where did they obtain their copper? We are all aware that in this country great supplies of pure copper exist near the southern shore of Lake Superior, and there is a peculiarity about the copper found there, that is, the presence of small pieces of silver with the copper. This is a very singular mixture, and we are not aware of its occurrence elsewhere. It would trouble the best chemists to explain it. From this fact we are enabled to identify articles of copper derived from that source, and to that region we can trace the copper from which are formed most of the copper implements and ornaments found in this country. It is also noticeable that the nearer we get to this region the more numerous are the finds of articles of copper. More are reported from Wisconsin than the rest of the United States put together.