It is pretty generally recognized in Europe that altogether our penal institutions are very far from being what they ought, and no better indeed than so many contradictions in action of the modern theory of the treatment of criminals. The principle of the lex talionis--of the right of the community to avenge itself on the criminal--is no longer admissible. We have come to an understanding that society at large is responsible for the vises that grow in it, as well as it has its share in the glory of its heroes; and we generally admit, at least in theory, that when we deprive a criminal of his liberty, it is to purify and improve him. But we know how hideously at variance with the ideal the reality is. The murderer is simply handed over to the hangman; and the man who is shut up in a prison is so far from being bettered by the change, that he comes out more resolutely the foe of society than he was when he went in. Subjection, on disgraceful terms, to humiliating wor...