On a certain summer morning, about the middle of the present century, a big bluff man, of seafaring aspect, found himself sauntering in a certain street near London Bridge. He was a man of above fifty, but looked under forty in consequence of the healthful vigour of his frame, the freshness of his saltwater face, and the blackness of his shaggy hair. Although his gait, pilot-cloth coat, and pocketed hands proclaimed him a sailor, there were one or two contradictory points about him. A huge beard and moustache savoured more of the diggings than the deep, and a brown wide-awake with a prodigiously broad brim suggested the backwoods.