soon his steady, ivory stride was heard, as to and fro he paced his old rounds, upon planks so familiar to his tread, that they were all over dented, like geological stones, with the peculiar mark of his walk. did you fixedly gaze, too, upon that ribbed and dented brow; there also, you would see still stranger foot-prints—the foot-prints of his one unsleeping, ever-pacing thought.