This condition is associated with mental depression and delusions. In its simple form, marked depression of spirits, apprehension of evil, sleeplessness, loss of appetite, and impaired alimentation with constipation are evident. Delusions of ruin, of the committal of acts contrary to the laws of God and man--“_the unpardonable sin_”--a marked inaptitude to carry on the ordinary duties of life, indecision, and often unutterable misery, are commonly exhibited. The delusions are fixed and may be multiple. They may comprise persecution, by friends or others; that things are happening which powerfully influence the person‘s life and body, or, as is often the case, concern religious matters, and everlasting punishment. Suicidal tendencies are often present, and depend largely upon the misery associated with the condition. Melancholics often conceal this tendency, or may exhibit it in varied ways so as to hide the method which has been definitely decided upon. Thus a person so afflicted may be found in possession of poison at one time, a pistol at another, a knife at another, when the real intention is that of drowning. Thus it is necessary to keep an extremely careful watch on melancholics. Homicidal tendencies are not common. In some cases the melancholia is combined with _marked agitation._ The face depicts misery, the eyebrows raised, and the person moves about incessantly, picking up objects and replacing them, moaning and uttering the same phrases expressive of misery and hopelessness, wringing the hands, and rocking the body to and fro. In other cases _stupor_ is predominant, and the person sits in silence and in the same attitude. Some resent interference, others are easily persuaded by their attendants to do certain acts, but when done relapse again into stupor. They manifest extreme apathy. Suicidal tendencies are a pronounced feature of such cases. Melancholia and mania may alternate periodically, with lucid intervals intervening. The term _circular insanity_ has been applied to this alternate character of the disease. DEMENTIA OR FATUITY