The doorways into these habitations are usually cut so as to admit a wooden frame to which a door might be attached; and there are deep holes bored in the rock, very much as in our old churches and towers, for the cross-piece of timber that effectually fastened the door. The grottoes are cut square, the ceilings are always sensibly horizontal, and the walls always vertical. But where a natural hollow has been artificially deepened, there the opening is usually irregular. Moreover, in such case, the gaping mouth of the cave was in part walled up. The traces of the tool employed are everywhere observable, they indicate that the rock was cut by a pick having a triangular point. Small square holes in the sides, and long horizontal grooves indicate the position of shelves. Square hollows of considerable size served as cupboards, and oblong rectangular recesses, 18 inches above the floor, and from 3 feet 9 inches to 4 feet 6 inches high and a foot deep were benches. Bedplaces were also cut in the rock. There are also indications of a floor having been carried across in some of the loftier caves, and there are openings in the roofs through which ascent was made to the series of chambers on the upper storey. Holes pierced in the ceiling served for the suspension of articles liable to be injured by proximity to a damp rock. A string was attached to the middle of a short stick, that was thrust into the hole. The string was then pulled and it was fast. Another plan was that of boring holes at an angle into the rock at the side. Into these holes rods were thrust and what was required to be kept dry was suspended from them. [Illustration: Sketch Plan of Rock Stable, Commarques.] Some of the grottoes served at once for man and beast and fowl. Not only are there chambers for the former, but also mangers for cattle, and silos to contain the fodder; and there are nooks for pigeons in an adjoining cave. In many cases there are cisterns; in one is a well. The cisterns had to be filled laboriously. They are provided with bungholes for the purpose of occasional cleaning out. The walls are scored with concave grooves slanting downwards, uniting and leading into small basins. The moisture condensing on the sides trickled into these runnels and supplied the basins with drinking water. The mangers have holes bored in the stone through which passed the halters. There are indications that the cattle were hauled up by means of a windlass.