He had a violin there which he had made himself, his tools being a knife made out of a nail hammered flat and the edge sharpened, and a piece of broken glass. It was admirably fashioned, and except that it was not varnished, would have been taken for such an instrument as you buy in a shop; its tone, too, was pleasing, and Billy could discourse excellent music on it. It was in the manufacture of these fiddles that his time was passed; the fact that he had but one hand to work with did not embarrass him. His contrivance for playing on the instrument was as remarkable as the instrument itself; he had rigged up a sort of jury arm of wood and metal, with an elbow to it, and a grip to lay hold of the bow. Persons who play on violins will doubtless be more puzzled than I was to conceive how he could do it; but he did it. And for aught I could see, he was content with his singular industry; it gave him constant occupation and enabled him, I suppose, to keep thoughts of other things out of the way. Otherwise, he was utterly unobtrusive, almost invisible, and the guards let him alone. But the government of the United States had kept him there for fifteen years, as a menace to society. You can see him in fancy, had he been set free for doing what most human beings must have done, ranging up and down the country, dealing out terror and slaughter. Such wild beasts must be restrained. They must be disciplined and reformed, and jail is the way to do it. Just before I left the jail, I spoke to Billy about his parole. "You and I will get out almost together," I said. "No, no," he replied, with his curious little humorous smile, "they can't get rid of me as easy as that; I've got three months yet, and I'm going to stick it out to the end." I have not heard the sequel; but I can hardly believe that the authorities mean to play the cat-and-mouse game with him.