An occasional phenomenon of magnetic sleep is the improvement of the language of patients; this appears not only in the case of well-educated persons, whose diction assumes often a high poetical form, but far more strikingly in unlettered and ignorant patients, who suddenly manifest an unexpected familiarity with the more refined form of their native tongue, and not unfrequently even with idioms of which they have previously had no knowledge whatever. All these different symptoms have been authenticated by numerous and trustworthy witnesses. Humble peasant-women have used the most elegant forms of their native language; travelers have unexpectedly recovered the use of idioms once known to them, but long since forgotten; and, finally, a real gift of languages has unmistakably enabled patients to use idioms with which they had previously never come in contact. This phenomenon develops itself occasionally into poetical improvisations of considerable merit, and the beautiful music which many hear in magnetic sleep, or just before dying, as if coming from another world, is, in like manner, nothing but a product of their own mental exaltation. Thus persons who spoke merely a local dialect, and were acquainted with no other form of their mother-tongue, when placed in magnetic sleep would speak the best English or German, as if their mind, freed from all fetters, resumed once more the original task of forming the language in accordance with their heightened capacities. Little children, whose education had scarcely begun, have been known to recite verses or to compose speeches, of which they would have been utterly incapable in a healthy state, and of which they had afterwards no recollection. Macnish mentions a young girl who, when magnetized, always fell back into Welsh, which she had spoken as a child, but long since forgotten, and Lausanne mentions one of his patients, a Creole, who came at the age of five to France, and late in life, when magnetized, spoke no longer French but the miserable patois of her early years. A young tanner in England, also, though utterly uneducated, like the peasant-boy of Puységur, was able in magnetic sleep to speak German. Whenever another person, at such a time, spoke to him in English, his lips began at once to move, and he translated what he heard into fair German verses. (Morin, _Journ. du Magn._ 1854, No. 199.) It must not be overlooked that the gift of singing and of using poetical language, often of great beauty, is not unfrequently developed in fever-patients also, and in insane persons.