As far as I have been able to detect, the upright posts are not found inside of the house, except, perhaps, on the rear wall of the outer chamber, as in one room of building _A_, to which I shall hereafter refer. If this is the room, then the skeleton of the wood-work (upright and transverse posts and beams) would present nearly the appearance shown in Pl. III., Fig. 3, when viewed from the side, and admitting the house to be four stories high. _a_, horizontal beams. _b_, upright posts, along the western wall, and in the three upper stories. These posts are hypothetical, and therefore only indicated by dotted lines. (It may be also that every cell had its front and its rear posts, but I have not been able to detect any except in the outer rooms.) With the exception of one chamber in building _A_, I nowhere met anything like a roof. This one appears to be nothing else than a ceiling-floor, but of nearly 0.75 m.--2 ft. 6 in.--in thickness. It is, as Pl. VIII. shows, much covered by fallen stones, and its original height may have been increased by _débris_; but at all events it was thoroughly impermeable, and such as would be required in a climate where, indeed, it seldom rains, but "whenever it rains it pours." There is a certain air of sameness cast over the entire structure which has strongly impressed me with the thought that not only was it used as a dwelling for a large number (as the reports, indeed, establish), but also that all its inhabitants lived on an equal footing,--as far as accommodations for living were concerned. There are no special quarters, no spacious halls. The few rooms of somewhat larger size are naturally explained by the mode of construction, adapting the house to the configuration of the rock, and not conversely as we do. It was, therefore, a large joint-tenement structure, harboring, perhaps, when fully occupied, several hundreds of families.