If the best possible building material was thus plentiful in Assyria, and its conveyance thus easy to manage, to what are we to ascribe the decided preference shown for so inferior a substance as brick? No considerable difficulty can have been experienced in quarrying the stone of the country, which is seldom very hard, and which was, in fact, cut by the Assyrians, whenever they had any sufficient motive for removing or making use of it. One answer only can be reasonably given to the question. The Assyrians had learnt a certain style of architecture in the alluvial Babylonia, and having brought it with them into A country far less fitted for it, maintained it from habit, not withstanding its unsuitableness. In some few respects, indeed, they made a slight change. The abundance of stone in the country induced them to substitute it in several places where in Babylonia it was necessary to use burnt brick, as in the facings of platforms and of temples, in dams across streams, in pavements sometimes, and universally in the ornamentation of the lover portions of palace and temple walls. But otherwise they remained faithful to their architectural traditions, and raised in the comparatively hilly Assyria the exact type of building which nature and necessity had led them to invent and use in the flat and stoneless alluvium where they had had their primitive abode. As platforms were required both for security and for comfort in the lower region, they retained them, instead of choosing natural elevations in the upper one. As clay was the only possible material in the one place, clay was still employed, notwithstanding the abundance of stone, in the other. Being devoid of any great inventive genius, the Assyrians found it easier to maintain and slightly modify a system with which they had been familiar in their original country than to devise a new one more adapted to the land of their adoption. Next to the architecture of the Assyrians, their mimetic art seems to deserve attention. Though the representations in the works of Layard and Botta, combined with the presence of so many specimens in the great national museums of London and Paris, have produced a general familiarity with the subject, still, as a connected view of it in its several stages and branches is up to the present time a desideratum in our literature, it may not be superfluous here to attempt a brief account of the different classes into which their productions in this kind of art fall, and the different eras and styles under which they naturally range themselves. Assyrian mimetic art consists of statues, bas-reliefs, metal-castings, carvings in ivory, statuettes in clay, enamellings on brick, and intaglios on stones and gems. [Illustration: PLATE 63]