pillars.  M. Botta states that he made a careful search for bases, or for marks of pillars, on the pavement of the north-east hall (No.  VIII.) at Khorsabad, but that he entirely failed to discover any.  This negative evidence is the more noticeable as stone pillar-bases have been found in wide doorways, where they would have been less necessary than in the chambers, as pillars in doorways could have had but little weight to sustain.

M. Botta and Mr. Fergusson, who both suppose that in an Assyrian palace the entire edifice was roofed in, and only the courts left open to the sky, suggest two very different modes by which the buildings may have been lighted.  M. Botta brings light in from the roof by means of wooden louvres, such as are still employed for the purpose in Armenia and parts of India, whereof he gives the representation which is reproduced. [PLATE XLVII., Fig. 7.] Mr. Fergusson introduces light from the sides, by supposing that the roof did not rest directly on the walls, but on rows of wooden pillars placed along the edge of the walls both internally towards the apartments and externally towards the outer air.  The only ground for this supposition, which is of a very startling character, seems to be the occurrence in a single bas-relief, representing a city in Armenia, of what is regarded as a similar arrangement.  But it must be noted that the lower portion of the building, represented opposite, bears no resemblance at all to the same part of an Assyrian palace, since in it perpendicular lines prevail, whereas, in the Assyrian palaces, the lower hues were almost wholly horizontal; and that it is not even Certain that the upper portion, where the pillars occur, is an arrangement for admitting light, since it may be merely an ornamentation.

The difficulties attaching to every theory of roofing and lighting which places the whole of an Assyrian palace under covert, has led some to suggest that the system actually adopted in the larger apartments was that hypoethral one which is generally believed to have prevailed in the Greek temples, and which was undoubtedly followed in the ordinary Roman house.  Mr. Layard was the first to post forward the view that the larger halls, at any rate, were uncovered, a projecting ledge, sufficiently wide to afford shelter and shade, being carried round the four sides of the apartment while the centre remained open to the sky.  The objections taken to this view are—­first, that far too much heat and light would thereby have been admitted into the palace; secondly, that in the rainy season far too much rain would have come in for comfort; and, thirdly, that the pavement of the halls, being mere sun-dried brick, would, under such circumstances, have been turned into mud.  If these objections are not removed, they would be, at any rate, greatly lessened by supposing the roofing to have extended to two-thirds or three-fourths of the apartment, and the opening to have been comparatively narrow.  We may also suppose that on very bright and on very rainy days carpets or other awnings were stretched across the opening, which furnished a tolerable defence against the weather.