A lover persuades the wife to get rid of her husband. For a whole year he instils the poison into her soul until she can struggle no longer against the obsession; he offers to do the deed, but she writes that she would rather suffer all the risks and consequences herself. "How many times," she writes, "have I wished to go away, leave home, but it meant leaving my children, losing them for ever.. that made my lover jealous, he believed that I could not bring myself to leave my husband. But if my husband were out of the way then I would keep my children, and my lover would see in my crime a striking proof of my devotion." A curious farrago of slavish passion, motherly love and murder.(6) (6) Case of Madame Weiss and the engineer Roques. If I may be permitted the reference, there is an account of this case and that of Barre and Lebiez in my book "French Criminals of the Nineteenth Century." There are some women such as Marie Boyer and Gabrielle Fenayrou, who may be described as passively criminal, chameleon-like, taking colour from their surroundings. By the force of a man's influence they commit a dreadful crime, in the one instance it is matricide, in the other the murder of a former lover, but neither of the women is profoundly vicious or criminal in her instincts. In prison they become exemplary, their crime a thing of the past. Gabrielle Fenayrou during her imprisonment, having won the confidence of the religious sisters in charge of the convicts, is appointed head of one of the workshops. Marie Boyer is so contrite, exemplary in her behaviour that she is released after fifteen years' imprisonment. In some ways, perhaps, these malleable types of women, "soft paste" as one authority has described them, "effacees" in the words of another, are the most dangerous material of all for the commission of crime, their obedience is so complete, so cold and relentless.