Lynch law had hitherto prevailed only in the mines; but about this time it had been found necessary to introduce it also in San Francisco. The number of murders and robberies committed there had of late increased to an alarming extent; and from the laxity and corruption of those intrusted with the punishment and prevention of crime, the criminal part of the population carried on their operations with such a degree of audacity, and so much apparent confidence in the immunity which they enjoyed, that society, in the total inefficiency of the system which it had instituted for its defense and preservation, threatened to become a helpless prey to the well-organized gang of ruffians who were every day becoming more insolent in their career. At last human nature could stand it no longer, and the people saw the necessity of acting together in self-defence. A Committee of Vigilance was accordingly formed, composed chiefly of the most prominent and influential citizens, which had the cordial approval, and the active support, of nearly the entire population of the city. The first action of the Committee was to take two men out of jail who had already been convicted of murder and robbery, but for the execution of whose sentence the experience of the past afforded no guarantee. These two men, when taken out of the jail, were driven in a coach and four at full gallop through the town, and in half an hour they were swinging from the beams projecting over the windows of the store which was used as the committee rooms. The Committee, during their reign, hanged four or five men, all of whom, by their own confessions, deserved hanging half-a-dozen times over. Their confessions disclosed a most extensive and wealthy organization of villainy, in which several men of comparatively respectable position were implicated. These were the projectors and designers of elaborate schemes of wholesale robbery, which the more practical members of the profession executed under their superintendence; and in the possession of some of these men there were found exact plans of the stores of many of the wealthiest merchants, along with programs of robberies to come off. The operations of the Committee were not confined to hanging alone; their object was to purge the city of the whole herd of malefactors which infested it. Most of them, however, were panic-struck at the first alarm of Lynch law, and fled to the mines; but many of those who were denounced in the confessions of their brethren were seized by the Committee, and shipped out of the country. Several of the most distinguished scoundrels were graduates from our penal colonies; and to put a stop, if possible, to the further immigration of such characters, the Committee boarded every ship from New South Wales as she arrived, and satisfied themselves of the respectability of each passenger before allowing him to land.