But these matchless productions are not merely the ‘wood-notes wild’ of untrained inspiration. They imply a long course of free development under favourable conditions. The vehicle of expression used in them might alone well be the product of centuries of pre-literary culture. Greek hexameter verse was by no means an obvious contrivance. It is an exceedingly subtle structure, depending for its effect—nay, for its existence—upon unvarying obedience to a complex set of metrical rules. These could not have originated all at once, by the decree of some poetical law-giver. They must have been arrived at more or less tentatively by repeated experiments, the recognised success of which led, in the slow course of time, to their general adoption. Moreover, the legendary materials of the Epics were not dug straight out of the mine of popular fancy and tradition. They had doubtless been elaborated and manipulated, before Homer took them in hand, by generations of singers and reciters. The ‘tale of Troy divine’ was already a full-leaved tree when he plucked from it and planted the branches destined to flourish through the ages. His verses display or betray acquaintance with many ‘other stories’ of public notoriety besides those completely unfolded in them. The fate of Agamemnon, the death of Achilles, the madness of Ajax, the advent of Neoptolemus, the slaying of Memnon, son of the Morning, the ambush in the Wooden Horse, the mysterious wanderings of Helen, the last journey of Odysseus, furnished themes of surpassing interest, all or most of which had been made into songs for the pastime of lordly feasters and the solace of noble dames, before the wrath of Achilles suggested a more adventurous flight. Inexhaustible, indeed, was the store of romantic adventure furnished by the famous ten years’ siege. A castle built in cloudland, or at most A crumbling clay-fort on a windy hill, Where needy men might flee a robber-host, This, this was Troy! and yet she holds us still.[1] Footnote 1: Lang’s _Helen of Troy_, vi. 21. But the saga-literature of the Greeks did not begin with the mustering of the fleet at Aulis. The ‘ante-Troica’ were not neglected. Many a ballad was chanted about the doings of those ‘strong men’ who ‘lived before Agamemnon,’ although it was not their fortune to be commemorated by a supreme singer. That supreme singer, however, knew much concerning the Argonauts, the War of Thebes, the Calydonian Boar-hunt, the sorrows of Niobe, and the betrayal of Bellerophon; ante-Trojan lays served as parables for the instruction of Clytemnestra, and the recreation of Achilles in that disastrous interval when he doffed his armour and strung his lyre. And a small but privileged class of the community was devoted, under the presumed tuition of the Muses, to the perfecting and perpetuation of these treasures of poetic lore.