AMENTIA 387 cleft or highly arched palate, irregularly set teeth, enlarged tonsils, adenoids, curved "bones, etc. Imbecility.—This is a minor form of idiocy, and may or may not be congenital. Imbeciles are " incapable of managing themselves or their affairs or in the case of children, of being taught to do so ". They are able to speak, though their command of language is very poor. Their memory is very feeble. In some cases it is highly developed, though not the intellect. They can mechanically repeat without any mistake "what is taught to them, but cannot understand its meaning. They are easily roused to passion, and may consequently become dangerous. They may commit theft or even murder. Owing to their repulsive manners and habits it is not possible to associate with them, but with a little patience and perseverance they can be taught to dress decently, to eat properly and to control their animal instincts. Fig. 155.— Microcephalic Imbeciles: Note the characteristic facial expression with the small head, low and flat forehead and prominent ears. (By permission of Dr. N. J. Modi and the Editor of the Indian Journal of Pediatrics.) A peculiar type of microcephalic imbeciles, commonly known as " Shah Daula's chuha (mice) " is prevalent in the Punjab. They are so named from their fanciful resemblance to mice owing to their flattened skull, and prominent ears. They are dedicated to the shrine of Shah Daula, whose tomb is in Gujarat (Punjab).4 They have no other deformity except the peculiar shape of the head, though most of them are deaf-mute, and have a squint in the eye. They are capable of learning simple employments, and are usually modest and decent. Feeble-mindedness. — Under the Mental Deficiency (England) Act, 1913, feeble-minded persons or morons are defined as persons in whose case there exists from birth or from an early age mental defectiveness not amoixatJBg to imbecility, yet so pronounced that they require care, supervision and control for their own protection, or for the protection of others, or* in the case of children, that they by reason, of such defectiveness appear t^ fe permanently incapable of receiving proper benefit from insteietioii M 4. Overbeck-Wrigttt, 322.