If we should set about making such a comparison, the principal difference to be noticed would be that arising out of the prohibitions of the Koran. The Persian potter had to content himself with the resources of pure ornament, resources upon which he drew with an exquisite skill that forbids us to regret the absence of men and animals from his work. The coloured surfaces of the Babylonian buildings must have had more variety than those of the great mosque at Ispahan or the green mosque at Broussa. But the same groups and the same personages were constantly repeated in the same attitudes and tints, so that their general character must have been purely decorative. Even when they were combined into something approaching a scene, care was taken to guard, by conventionality of treatment and the frequent repetition of familiar types and groups, against its attracting to itself the attention that properly belonged to the composition of which it formed a part. The artist was chiefly occupied with the general effect. His aim was to give a certain rhythm to a succession of traditional forms whose order and arrangement never greatly varied, to fill the wide surfaces of his architecture with contrasts and harmonies of colour that should delight the eye and prevent its fatigue. Were the colours as soft and harmonious as we now see them in those buildings of Persia and Asia Minor that will themselves soon be little more than ruins? It is difficult to answer this question from the very small fragments we possess of the coloured decorations of the Babylonian temples and palaces, but the conditions have remained the same; the wants to be satisfied and the processes employed a century ago were identical with those of Babylon and Nineveh; architect and painter were confronted by the same dazzling sun, and, so far as we can tell, taste has not sensibly changed over the whole of the vast extent of country that stretches from the frontiers of Syria to the eastern boundaries of the plateau of Iran. New peoples, new religions, and new territorial divisions have been introduced, but industrial habits have remained; in spite of political revolutions the workman has transmitted the secrets of his trade to his sons and grandsons. Oriental art is now threatened with death at the hands of Western competition. Thanks to its machines Europe floods the most distant markets with productions cheaper than those turned out by the native workman, and the native workman, discouraged and doubtful of himself, turns to the clumsy imitation of the West, and loses his hold of the art he understood so well. Traditions have become greatly weakened during the last half century, but in the few places where they still preserve their old vitality they may surely be taken as representative of the arts and industries of many centuries ago, and as the lineal descendants of those early products of civilization on which we are attempting to cast new light.