The faculty of conversing in a state of somnambulism is too well authenticated to be doubted, although in many instances it may have been a fraudulent trick of animal magnetism. This singular power has been recorded by several of the ancient writers, many of whom pretended that divine inspiration illumined the sleepers. Cicero tells us that when the Lacedaemonian magistrates were embarrassed in their administration, they went to sleep in the temple of Pasiphae, thus named from _Pasi phainein_, or "communicative to all." Strabo mentions a cavern, sacred to Pluto and Juno, where the sick came to consult sleeping priests. Aristides is said to have delivered his opinion while fast asleep in the temple of Aesculapius. It would be endless to quote all the authorities on this subject. Modern magnetisers, however, outstrip the ancients in the wonders they relate in regard to somnambulent faculties developed by magnetism. In 1829, Cloquet, a very distinguished Parisian surgeon, assisted by Dr. Chapelain, removed the cancerous breast of a lady in her magnetic sleep, during which she continued her conversation, unconscious of the operation, which lasted twelve minutes. The faculty of seeing through the closed eyelids was fully substantiated in the presence of a commission of investigation appointed by the Academy of Medicine of Paris, and in the presence of fifteen persons. They found a somnambulist, of the name of Paul, to all appearance fast asleep. On being requested to rise and approach the window, he complied immediately. His eyes were then covered in such a manner as not to awaken him, and a pack of cards having been shuffled by several persons, he recognised them without the slightest hesitation. Watches were then shown him, and he named the hour and minute, though the hands were repeatedly altered. A book was then presented to him,--it happened to be a collection of operas,--and he read _Cantor et Pollux_ instead of _Castor et Pollux, Tragedie Lyrique_: a volume of Horace was then submitted to him, but not knowing Latin, he returned it, saying, "This is some church-book." The celebrated Dr. Broussais laid before the same somnambulist a letter he had drawn from his pocket; to his utter surprise he read the first lines: the doctor then wrote a few words on a piece of paper in very small characters, which the somnambulist also read with the utmost facility; but, what was still more singular, when letters or books were applied to his breast, or between the shoulders, he also perused them with equal accuracy and ease. In one instance the queen of clubs was presented to his back; after a moment's hesitation he said, "This a club--the nine;" he was informed that he was in error, when he recovered himself and said, "No, 'tis the queen:" a ten of spades was then applied, when he hastily exclaimed, "At any rate this is not a court-card; it is--the ten of spades."