[163] _Rich heaps of brass_. “The halls of Alkinous and Menelaus glitter with gold, copper, and electrum; while large stocks of yet unemployed metal—gold, copper, and iron are stored up in the treasure-chamber of Odysseus and other chiefs. Coined money is unknown in the Homeric age—the trade carried on being one of barter. In reference also to the metals, it deserves to be remarked, that the Homeric descriptions universally suppose copper, and not iron, to be employed for arms, both offensive and defensive. By what process the copper was tempered and hardened, so as to serve the purpose of the warrior, we do not know; but the use of iron for these objects belongs to a later age.”—Grote, vol. ii. p. 142.