is given to him, and he is told that it is vinegar, he persists in saying that he tastes water, and nothing else. This is almost the only experiment that fails upon him. B. is an intelligent man, upwards of thirty years of age, of nervous temperament. His honesty and veracity are quite beyond all rational doubt. The numerous spectators, who have known him well for many years, are quite sure that if he has any will in the matter, it is simply to defeat the lecturer's purpose. However, after he has submitted himself to the process, the experiments made upon him prove successful. He is naturally a fluent talker, but now cannot, without difficulty and stammering, pronounce his own name, an easy monosyllable--cannot strike the lecturer's hand--cannot rise from a chair, &c. We may add, that he cannot be made to mistake water for vinegar. One more case. C. is a tradesman, middle-aged, has no tendency to mysticism or imaginative reverie--knows nothing of 'mesmerism' or 'electro-biology'--was never suspected of falsehood or imposition. He proves, however, the most pliable of all the patients--the experiments succeed with him to the fullest extent--his imagination and his senses seem to be placed entirely under the control of the experimenter. Standing before a large audience, he is made to believe that he and the lecturer are alone in the room. He cannot recognise his own wife, who sits before him. He cannot step from the platform, which is about one foot higher than the floor. When informed that his limbs are too feeble to support him, he totters, and would fall if not held. Many of the experiments upon him, shewing an extreme state of mental and physical prostration, are rather painful to witness, others are ludicrous; for instance, he is made to believe that he is out amid the snow in the depth of winter--he shivers with cold, buttons up his coat, beats the floor with his feet, brushes away the imagined fast-falling flakes from his clothes, and almost imparts to the spectators a sympathetic feeling of cold by his wintry pantomime: then he is jocosely recommended not to stand thus shivering, but to make snow-balls, and pelt the lecturer. Heartily, and with apparent earnestness, he acts according to orders. Next, he is made to believe that the room has no roof.--'You see the sky and the stars, sir?'--'Yes.' 'And there, see, the moon is rising, very large and red, is it not?'--'Yes, sir.' 'Very well: now you see this cord in my hand; we will throw it over the moon, and pull her down.' He addresses himself to the task with perfect gravity, pulls heartily. 'Down she comes, sir! down she comes!' says the experimenter: 'mind your head, sir!'--and the deluded patient falls on the platform, as he imagines that the moon is coming down upon him.