=Partial Moral Mania.=--In the case of the unfortunate sufferers from this malady, one or two only of the moral powers are perverted. This division admits of several subdivisions:-- _Kleptomania._--A marked propensity to theft. “There are persons,” says Rush, “who are moral to the highest degree as to certain duties, but who, nevertheless, lie under the influence of some vice. In one instance, a woman was exemplary in her obedience to every command of the moral law except one--she could not refrain from stealing. What made this vice more remarkable was, that she was in easy circumstances, and not addicted to extravagance in anything. Such was the propensity to this vice that, when she could lay her hands on nothing more valuable, she would often, at the table of a friend, fill her pockets secretly with bread. She both confessed and lamented her crime.” _Pyromania._--This consists in an insane impulse to set fire to everything--houses, churches, and property of every kind and description. _Erotomania and Nymphomania._--This is known as amorous madness, and consists in an inordinate and uncontrollable desire for sexual intercourse. The unfortunate victims of this disease often express the greatest disgust and repugnance for their conduct. _Homicidal Mania_--In this form of madness the propensity to homicide is very great, and in most cases uncontrollable. In the case of the notorious Deeming, hanged in Australia in 1892 for the murder of his wife, an appeal was made from the finding of the Colonial Court by which he was tried to the Privy Council, on the ground of his being affected with homicidal mania. The plea was not sustained. (See the case of Henrietta Cornier, given by Pritchard, Ray, and others.) The following suggestions may be of assistance in forming a diagnosis as to the existence or non-existence of this form of madness:-- 1. Previous history of the individual.--_Melancholy, eccentric, morose, &c._ 2. Absence of motive.--_Gain, jealousy, revenge, hatred, &c._ 3. A number of victims are often sacrificed at one time.--_The murderer, on the other hand, seldom sheds more blood than is necessary for his success._ 4. Proceedings of the murderer before and after the crime.--_Absence of attempts at concealment or escape on the part of the madman._ 5. Character of the victims.--_Not infrequently, in the case of madmen, their victims are those whom, when sane, they loved most, and to whom they were most attached._ _Suicidal Monomania, or the Propensity to Suicide._--Much discussion has arisen on this subject. Suicide is not always the result of unsoundness of mind. Some, like M. Esquirol, are inclined to consider suicide as always a manifestation of insanity. In the present day, the dislike of coroners‘ juries to bring in any other verdict but that of “suicide whilst in a state of unsound mind” is proverbial. MELANCHOLIA