368 MEDICAL JURISPRUDENCE ordinary schools. Feeble-minded individuals do not, as a rule, present "bodily deformities and stigmata of degeneration, and are often capable of making their own living although they lack in initiative and ability for any work of responsibility. Such persons, however, develop vicious or criminal propensities, especially of a sexual nature, and are apt to commit assaults or even murders, as they are incapable of restraining their impulses. Under the Mental Deficiency Act of 1927 moral defectives are defined as persons in whose case there exists mental defectiveness coupled with strongly vicious or criminal propensities and who require care, supervision and control for the protection of others. Mental defectiveness is a condition of arrested or incomplete deve- lopment of mind existing before the age of eighteen years, whether arising from inherent causes or induced by disease or injury. Moral defectives are usually endowed with an ave- rage degree of intellect, but cannot control their immoral conduct, instincts and emotions and cannot be made to understand that they are doing a wrong act. They are dangerous to the community, inasmuch as they are lack- ing in moral sense and have no regard for the rights or feelings of others. Punishment has little or no deterrent effect on them. Cretinism. — This is endemic, and is preva- lent in the hilly districts. It is usually asso- ciated with goitre and other affections of the thyroid gland. Development of the body is generally arrested. The figure is squat and dwarfish with short thick limbs and clumsy movements. The complexion is sallow, the Fi9* 256.—A cretin— age 13 years. eyelids are swollen, and the lips and tongue (Fromr a ^ograph lent kindly are thickened. The skin is rough and pig- by **' N' J' Mod° mented Such children learn to speak very late and that too, imperfectly Some of them are deaf, and others blind. Mentally cretins may look dull and stupid, or may be perfect idiots. Ordinarily, they are slow in thought, and incapable of acquiring knowledge, but with some patience and perseverance they may be able to learn. 2. DEMENTIA ™ tfonVf ijjfanity, which is produced by the degeneration of mental faculties, after they have been fully developed. Hence it is not congenital but may occur at any period of life. The symptoms appear all of a sudden in a previously sane individual, or they may appear gradually. When the attack is sudden, the patient passes into a condition of stupor without any emotional feeling or without any depression or delusion and becomes an imbecile or idiot. In a slow Sec T * ,1 ^ad^ degeneration of the mental faculties. He becomes listless and apathetic, does not take any interest in his dress, food, family or ^JS™^^ ^ attention on ^ su^ect Memory becomes i Judgment is impaired, and his control over the emotional Very mu.ch w^^ed As the disease progresses from bad to c™°* ^fcts of volition are abolished. The patient becomes ^ "^ b^« to laugh or cry without rhVme or reason. He is mentally and morally depraved, and is unmindful of ordinary decencies at life. He sometimes resorts to masturbation in public.