The foundations of the circular dwellings are formed of blocks of granite, sometimes set vertically and sometimes placed in horizontal layers, enclosing a space from eight to thirty feet in diameter. The roof rested on the circular wall, which was never over four feet high, and was doubtless of wood covered with rushes, heather, or skins; a low doorway facing south or south-west gave access to the interior; and a hole in the apex of the roof served as chimney. The thorough exploration of the floors of these huts has resulted in the discovery of fire-places, cooking-holes, and raised platforms of stones forming seats by day and beds at night, not so uncomfortable as it sounds, when covered with rushes and dry fragrant heather.
That the inmates played games is probable, from the number of small rounded quartz pebbles found that may have served for a game. Cooking-pots rudely made by hand of coarse earthenware, imperfectly baked, have been found, standing in the cooking-holes made in the floor, with the "cooking-stones" in and around them. These are river pebbles of dense, hard granite, which were placed in a fire and heated to such a pitch that dropped into the pot containing water they brought it to the boiling-point, and maintained it, by fresh additions, until the cooking operation was complete. These pots were fragile, and like modern crockery ware got broken; in one prehistoric cooking-vessel it took the form of a fracture in the bottom—perhaps due to the careless dropping in of the cooking-stones by some inexperienced or impatient cook—but some-
