On the other hand, it is not to be denied that the working classes, maddened by sufferings which their ignorance often led them to impute to wrong causes, committed many deplorable and guilty actions. At the direct incentive of the Trades-Unions, the factory hands sent threatening letters to the masters, fired the mills, made murderous attacks on such of their fellow-workmen as were willing to serve for lower wages, destroyed valuable machinery, and kept a large part of England, Scotland, and Ireland in perpetual terror. Chartism, by its assertion of political principles, whether right or wrong, did a certain amount of good, by giving another direction to all this turbulent socialism. Yet Chartism itself had its excesses, and, after the riots at Birmingham and elsewhere, the Government became alarmed. There were physical-force Chartists as well as moral-force Chartists; and at first the former were the more prevailing. The manufacturing districts were almost in a state of rebellion when, in the autumn of 1839, Henry Vincent was imprisoned at Newport, Monmouthshire, for delivering seditious speeches. There was at that time in Newport a respectable tradesman named John Frost, who had until recently been a magistrate of the borough, but whose use of intemperate language at a public meeting had caused his removal from the post. This dangerous egotist, or enthusiast, whichever he may have been, determined on making a bold attempt to rescue Vincent. He collected a vast body of armed men, marched seven thousand into the town on the 4th of November, while a great many more remained on the surrounding hills, and proceeded to the Westgate Hotel, where the magistrates were sitting.