And he would, doubtless, know that steel is softened by simple exposure to gradual heating. _Síderos_ is common wrought iron; so we find σιδήρεον for the Iron Age[733] and σίδηρος πολιός,[734] which should be translated, not ‘hoary,’ but ‘iron-grey.’ The ‘black’ (dark-blue) ‘Cyanus’ κύανος mentioned by the ‘Iliad,’[735] would be a fusible or artificial steel made to imitate the true blue-stone or lazulite (Theophrastus, 55).[736] The adamas (ἀδάμας) of Hesiod,[737] who specifies the iron of the Cretan Idæi Dactyli, would be a white and tempered metal; while χάλυψ (steel in general) either named or was named by the well-known Chalybes. That the harder substance was not rare, we see by the injunction,[738] ‘Do not, at a festive banquet of the gods, pare from the five-pointed branch (hand) with bright steel, the dry from the fresh’: i.e. don’t cut your nails at dinner. So at the Battle of the Ships,[739] Homer studs a great sea-fighting Xyston (pole), twenty-two cubits long, with spikes of iron; and elsewhere speaks of a ‘cyanus-footed table.’[740] Yet copper was _the_ metal for arms and armour. While the shield of Hercules was made of alabaster (not ‘gypsum’), ivory, elektron (the mixed metal) and (pure) gold, the hero is armed with a ‘short spear tipped with gleaming copper’;[741] and he fastens around his shoulders a ‘Sword, the averter of destruction,’ which the context suggests to be of the same material. The ‘fair-haired Danaë’s son, equestrian Perseus,’[742] bears a Sword of copper with iron sheath hanging by a felt-thong (μελάνδετον ἄορ).[743] The seven-hide shield of Ajax[744] was χάλκεος, of copper—not ‘brass-bound’ as Lord Derby has it. The lambs’ throats are cut with the ‘cruel copper’ (χαλκός),[745] and Diomede pursues Venus with the same weapon.[746] Hephaistos makes for Achilles a shield of gold and silver, copper and tin;[747] and canny Diomede’s armour[748] is of copper, which he changes for gold, ‘the value of a hundred beeves for the value of nine.’ In the ‘Iliad’ close-handed combat succeeds to missile-using. As Strabo remarks,[749] Homer makes his warriors begin their duellos by weapon-throwing and then take to their Swords. But the latter is _the_ weapon, rivalled only by the hand-spear. Hence the Egyptian-taught Argives are insulted as arrow-throwers;[750] and Diomede reviles his foe as ‘an archer and woman’s man.’[751] The taunts are still known to savage tribes of modern day.