With respect to his authorities, and the use he made of their writings, there has been more difference of opinion. Since his narrative covers the same ground as the "Aethiopis" ("Coming of Memnon") and the "Iliupersis" ("Destruction of Troy") of Arctinus (circ. 776 B.C.), and the "Little Iliad" of Lesches (circ. 700 B.C.), it has been assumed that the work of Quintus "is little more than an amplification or remodelling of the works of these two Cyclic Poets." This, however, must needs be pure conjecture, as the only remains of these poets consist of fragments amounting to no more than a very few lines from each, and of the "summaries of contents" made by the grammarian Proclus (circ. 140 A.D.), which, again, we but get at second-hand through the "Bibliotheca" of Photius (ninth century). Now, not merely do the only descriptions of incident that are found in the fragments differ essentially from the corresponding incidents as described by Quintus, but even in the summaries, meagre as they are, we find, as German critics have shown by exhaustive investigation, serious discrepancies enough to justify us in the conclusion that, even if Quintus had the works of the Cyclic poets before him, which is far from certain, his poem was no mere remodelling of theirs, but an independent and practically original work. Not that this conclusion disposes by any means of all difficulties. If Quintus did not follow the Cyclic poets, from what source did he draw his materials? The German critic unhesitatingly answers, "from Homer." As regards language, versification, and general spirit, the matter is beyond controversy; but when we come to consider the incidents of the story, we find deviations from Homer even more serious than any of those from the Cyclic poets. And the strange thing is, that each of these deviations is a manifest detriment to the perfection of his poem; in each of them the writer has missed, or has rejected, a magnificent opportunity. With regard to the slaying of Achilles by the hand of Apollo only, and not by those of Apollo and Paris, he might have pleaded that Homer himself here speaks with an uncertain voice (cf. "Iliad" xv. 416-17, xxii. 355-60, and xxi. 277-78). But, in describing the fight for the body of Achilles ("Odyssey" xxiv. 36 sqq.), Homer makes Agamemnon say: "So we grappled the livelong day, and we had not refrained us then, But Zeus sent a hurricane, stilling the storm of the battle of men."