It is of the highest importance to observe that such pieces of copper and iron are not weighed, but are appraised by measurement. We shall find that it is only at a period long subsequent to the weighing of gold that the inferior metals are estimated by weight. The custom of capturing wives which prevails among the lowest savages is succeeded by the custom of purchasing wives. The woman is only a chattel on the same footing as the cow or the sheep, and she is accordingly appraised in terms of the ordinary media of exchange employed in her community, whether it be in cows, horses, beads, skins or blankets. Presently male captives are found useful both to tend flocks and, as in the East and in the modern Soudan, to guard the harem. With the discovery of gold, ornaments made at first out of the rough nuggets supersede other ornaments, and presently either such ornaments or portions of gold in plates or lumps are added to the list of media, and the same follows with the discovery of silver. Such ornaments or pieces of gold and silver are estimated in terms of cattle, and the standard unit of the bars or ingots naturally is adjusted to the unit by which it is appraised. Thus we found the Homeric talent, the silver bar of Annam, the Irish _unga_ all equated to the cow, and the Welsh _libra_, Anglo-Saxon _libra_, similarly equated to the slave. With the discovery of the art of weaving, cloths of a definite size everywhere become a medium, as the silk cloth of ancient China, the woollen cloths of the old Norsemen, the _toukkiyeh_ of the Soudan, and the blanket of North America. This fact once more recalls Homer and makes us believe that the robes and blankets and coverlets which Priam brought along with the talents of gold to be the ransom of Hector’s body all had a definite place in the Homeric monetary system[81].