Why, then, did the late poetic interpolators, who knew that the spears and swords of the old warriors were of bronze, and who describe them as of bronze, not know that their knives and axes were also of bronze? Why did they describe the old knives and axes as of iron, while Hesiod knew, and could have told them--did tell them, in fact--that they were of bronze? Clearly the theory that Homeric poets were archaeological precisians is impossible. They describe arms as of bronze, tools usually as of iron, because they see them to be such in practice.
The poems, in fact, depict a very extraordinary condition of affairs, such as no poets could invent and adhere to with uniformity. We are accustomed in archaeology to seeing the bronze sword pass by a gradual transition into the iron sword; but, in Homer, people with abundance of iron never, in any one specified case, use iron sword blades or spears. The greatest chiefs, men said to be rich in gold and iron, always use swords and spears of _bronze_ in _Iliad_ and _Odyssey_.
The usual process of transition from bronze to iron swords, in a prehistoric European age, is traced by Mr. Ridgeway at Hallstatt, "in the heart of the Austrian Alps," where a thousand old graves have been explored. The swords pass from bronze to iron with bronze hilts, and, finally, are wholly of iron. Weapons of bronze are fitted with iron edges. Axes of iron were much more common than axes of bronze. [Footnote: _Early Age of Greece_, i. 413-416.] The axes were fashioned in the old shapes of the age of bronze, were not of the _bipennis_ Mycenaean model--the double axe--nor of the shape of the letter D, very thick, with two round apertures in the blade, like the bronze axe of Vaphio. [Footnote: Monro, Odyssey, vol. ii. 176.] Probably the axes through which Odysseus shot an arrow were of this kind, as Mr. Monro, and, much earlier, Mr. Butcher and I have argued. [Footnote: _Ibid_. (1901), vol. ii. Book XIX. line 572. Note. Butcher and Lang, Odyssey, Appendix (1891).]
At Hallstatt there was the _normal_ evolution from bronze swords and axes to iron swords and axes. Why, then, had Homer's men in his time not made this step, seeing that they were familiar with the use of iron? Why do they use bronze for swords and spears, iron for tools? The obvious answer is that they could temper bronze for military purposes much better than they could temper iron. Now Mr. Ridgeway quotes Polybius (ii. 30; ii. 33) for the truly execrable quality of the iron of the Celtic invaders of Italy as late as 225 B.C. Their swords were as bad as, or worse than, British bayonets; they _always_ "doubled up." "Their long iron swords were easily bent, and could only give one downward stroke with any effect; but after this the edges got so turned and the blades so bent that, unless they had time to straighten them with the foot against the ground, they could not deliver a second blow." [Footnote: _Early Age of Greece_, vol. i. 408.] If the heroes in Homer's time possessed iron as badly tempered as that of the Celts of 225 B.C., they had every reason to prefer, as they did, excellent bronze for all their military weapons, while reserving iron for pacific purposes. A woodcutter's axe might have any amount of weight and thickness of iron behind the edge; not so a sword blade or a spear point. [Footnote: Monsieur Salomon Reinach suggests to me that the story of Polybius may be a myth. Swords and spear-heads in graves are often found doubled up; possibly they are thus made dead, like the owner, and their spirits are thus set free to be of use to his spirit. Finding doubled up iron swords in Celtic graves, the Romans, M. Beinach suggests, may have explained their useless condition by the theory that they doubled up in battle, leaving their owners easy victims, and this myth was accepted as fact by Polybius. But he was not addicted to myth, nor very remote from the events which he chronicles. Again, though bronze grave-weapons in our Museum are often doubled up, the myth is not told of the warriors of the age of bronze. We later give examples of the doubling up, in battle, of Scandinavian iron swords as late as 1000 A.D.]