Ordinarily erotic paranoia manifests itself by the patient imagining himself or herself to be beloved by some one of superior station. This love is of rather a platonic character and the "lover" cranks are prone to pick out as the object of their attention and annoyance some young woman rather prominently in the public eye, but whose reputation is of the very highest. Mary Anderson was the subject of a good deal of this sort of persecution. At the present moment the well and favourably known daughter of a great millionaire is the subject of many such attentions. These paranoiacs are apt to become dangerous if they are prevented from paying what they consider suitable attention to the object of their affection. In hospitals they have to be carefully watched, and more than one accident has taken place as the result of relaxation of vigilance on the part of their attendants. If kept from the object of his affection, delusions of persecution become prominent in the amorous paranoiac, and he may become a persecutor in turn and thus a dangerous lunatic. He can not be made to understand that the sending of flowers and photographs and letters is entirely distasteful to the chosen one. Fortunately, after a time, in many of these cases, a state of dementia sets in, and then the patients become mild-mannered imbeciles whom it is not at all difficult to manage. As a rule where the patient has passed through the various stages of paranoia, dementia, with symptoms of imbecility, closes the scene. The paranoia may not always follow the course mapped out for it. Stages may be skipped, several forms of delusions may become prominent in the life of the individual at about the same time. The main feature of the disease is its progressive character, and its diagnosis depends on the queerness exhibited all during the course of life, as well as on the presence of hereditary neurotic influences.