A lady, with whom we are acquainted, was walking early one morning in a lonely and unfrequented path, which was open to the eye for some distance. On approaching its termination, she was surprised to see a lady advancing towards her, dressed in deep mourning, and reading a book. Struck by the peculiar beauty of the lady's face, she turned round to gaze upon her as she passed; but, to her surprise, the figure vanished. Startled and alarmed, she hurried home, and almost immediately afterwards was seized with shiverings, and suffered from a violent attack of fever, characterised by severe cerebral disturbance. The hallucination in this case was caused by the changes induced in the nervous system by the initiatory stages of the disease.

A young lady recovering from a severe attack of fever, was left in charge of the house during a fine Sunday evening in autumn, the remainder of the family having gone to church. A thunder-storm came on, with heavy rain, and she became very anxious about her aged father. On going into the room generally occupied by the family, there, to her great astonishment, she beheld, as she thought, her father sitting in his usual position. Supposing that he must have returned from church unwell, she advanced, placed her hand upon the semblance, and found nothing. Although startled, she attributed the vision to its proper cause, anxiety and weakness; but though she went in and out of the room several times, the spectre persisted for a considerable period.

A merchant, while sitting in his counting-house, was annoyed by hearing voices outside the door conversing freely respecting his character, and speaking of him as a dishonoured man. Thinking it was some trick of his friends, he quietly opened the door, and was astonished to find no one. On closing it the voices again began in a similar strain; and on re-opening the door he still found no one. Alarmed, he left his office, and proceeded home, but the voices followed him, threatening punishment for imaginary crimes. This hallucination was accompanied by other signs of a disordered state of the brain, and it was not until after a period of entire relaxation from business, and a daily game at cricket, that the phantom-voices ceased.

There are certain formidable disorders of the nervous system in which hallucinations affect all the senses.

The following is an example of the diseases of this class, and it will show the influence which they are liable to exert in the development of certain forms of superstition.

A maiden lady, aged forty years, who from early youth had been of a very susceptible and restless disposition, suffered from hallucinations which persisted for many years.

At first the sight alone was affected, and she saw numerous persons of singular and fantastic form. Subsequently she heard voices, which professed to have taken up their abode in her stomach, and addressed her from thence. These voices tormented her; commanded all her actions; informed her of what took place within the body; gave her instructions upon diseases, and even prescribed for them. The voices gave her information respecting the characters of divers persons, and occasionally endowed her with the power of expressing herself in terms more florid and fluent than she was accustomed to. Often the voices conversed on geography, grammar, rhetoric, &c.; and they would reprove her when she had done amiss. They told her that she was possessed, and although she was not superstitious, and fully recognized the hallucinations she suffered from, she at this time sought a priest to exorcise her, thought much of eternity, and sometimes gave herself up to despair. At one time the voices told her she would become queen; often they conversed with her upon strange, and sometimes even abominable subjects; then they would say things extremely comical, and make her laugh. They would please, and then mock her, and then assail her more violently than ever, and spoil like harpies everything she touched or did. If she took a glass of water, the voices would call out that it was poisoned; and frequently they urged her to destroy herself. When she walked out, if she passed a female, the voices would cry out that she carried musk (the odour of which the lady abominated) and immediately she smelt this odour; if a man passed her, she was affected with the smell of tobacco. The voices often gave her no rest until she did what they liked, and they even ordered her to Paris, to place herself under the care of physicians there.

The visions she suffered from were very singular. Her apartment was filled with persons of all characters and descriptions; numerous processions defiled before her, and some of the figures had but one half the body, a profile, or one eye; they were large or small, and occasionally underwent singular and fantastic changes of form.

The food she took did not possess its natural taste, and the voices often gave unpleasant savours, to prevent her eating.