became acquainted with gold or silver before man cast away his necklets or bracelets of shells such as have been found along with the most ancient remains of the human race yet discovered in Europe, and put on his person in their stead similar ornaments beaten out of the gold from the brook. It is perfectly reasonable to assume that the primitive Aryan or primitive Semite, who wore ornaments of shells, used these as instruments of barter, or even currency, in the same way as we have found the peoples of Asia and Africa using their strings of cowries, the aborigines of North America their wampum belts, and the Fijians their whales' teeth.
In what particular region mankind first employed the precious metals to adorn his person, it is of course impossible for us to say. But beyond all doubt already in Egypt at the very dawn of history gold was playing an important part. The question of the relative dates at which the metals were first employed by man is one of great interest and importance in studying the history of human development. Of the four chief metals, gold, silver, copper and iron, we have no difficulty in deciding that iron is most certainly the latest to come into use. It is only within historical time that implements and weapons of iron have superseded those of copper and bronze, at least within the area occupied by the great civilized races. The reason for this is obvious: iron is not found native, but must be obtained by a difficult process of smelting, and even when obtained requires great skill to make it available for use. The Greeks of the Homeric Poems were still in the later bronze age, although iron was known and employed for weapons and implements. But as we have no immediate need to discuss the date of the introduction of iron, we may pass on to the three remaining metals.
It is obvious that if a metal is found naturally in such a condition that it can be immediately wrought into various forms for ornament or utility, such a metal is likely to have been employed at a much earlier period than one which is rarely if ever found in a native condition. Now silver is a metal which is rarely found pure, and considerable metallurgical skill is needed to render it fit for use. On the other hand gold
