We owe the survival of the Moallakat to the capricious taste of some self-appointed critic, who selected them from a number of poems with which he was familiar; and, through his arbitrary choice, we are deprived of the opportunity of forming an opinion of the others which his rejection has tacitly pronounced inferior. We know nothing of his qualifications for such a task, and are even ignorant of his name; but, from the remaining fragments of these productions, we may safely conclude that some of them, at least, were as fully entitled to preservation as the seven more fortunate ones which have descended to posterity. It is a remarkable fact that no Arabic poem shows traces of Hebrew influence or contains ideas borrowed from either the Scriptures or the Talmud. The wealth and political power of the Jews; their intimate association with the nomadic tribes of the Peninsula; a close similarity of traditions, customs, and language, produced no perceptible effect upon the prehistoric literature of the Arabs. The Hebrews of Arabia, nevertheless, had their poets, whose productions, on the other hand, exhibit a marked coincidence of thought and style with those of their Arab kinsmen. Their sentiments are lofty and admirable, their language pure, and their merit, while inferior to that of the Moallakat, is still far from contemptible. The Book of Job, which has no apparent connection with the rest of the Scriptures, has been pronounced by competent critics a translation of an Arabic poem. Improvisation, a talent possessed only by those endowed with unusual readiness of perception, a lively imagination, and an inexhaustible command of language, was practised with great success by the itinerant poets of Arabia. From their auditors, a couplet happily applied, by the inspiration of the moment, to some well-known event, elicited far more applause than efforts, however meritorious, which had cost days of arduous labor. This art of extemporaneous composition, which, when thoroughly developed, implies the possession of extraordinary mental ability, carried into Europe by the Moslems, and long employed by the troubadours, now survives only among the lowest class of the Italian peasantry. It is, in our day, most difficult to determine what degree of authenticity may properly be ascribed to the poetry of the ancient Arabs, none of which ascends to a higher antiquity than two hundred years before the Hegira. The unreliability of oral tradition, the variety of dialects, the frequent substitutions of modern phraseology, the bad faith, interpolations, and mistakes of unscrupulous commentators, the corruption and suppression of passages through tribal prejudice--all of these causes have had their share in effecting the gradual deterioration of the grand and stirring poems of Arabia.