The process of evolution of the huge Mycenaean shields, and of the Homeric shields covering the body from chin to ankles, can easily be traced. The nature of the attack expected may be inferred from the nature of the defence employed. Body-covering shields were, obviously, at first, _defences against showers of arrows_ tipped with stone. "In the earlier Mycenaean times the arrow-head of obsidian alone appears," as in Mycenaean Grave IV. In the upper strata of Mycenae and in the later tombs the arrow-head is usually of bronze. [Footnote: Tsountas and Manatt, p. 206.] No man going into battle naked, without body armour, like the Mycenaeans (if they had none), could protect himself with a small shield, or even with a round buckler of twenty-six inches in diameter, against the rain of shafts. In a fight, on the other hand, where man singled out man, and spears were the missiles, and when the warriors had body armour, or even when they had not, a small shield sufficed; as we see among the spear-throwing Zulus and the spear-throwing aborigines of Australia (unacquainted with bows and arrows), who mainly use shields scarcely broader than a bat. On the other hand, the archers of the Algonquins in their wars with the Iroquois, about 1610, used clubs and tomahawks but no spears, no missiles but arrows, and their leather shield was precisely the [Greek: amphibrotae aspis] of Homer, "covering the whole of a man." It is curious to see, in contemporary drawings (1620), Mycenaean shields on Red Indian shoulders!