Hahn, who was born in Silesia, in 1714, wrote an excellent work upon the curative agency of water in all complaints, a copy was lately found upon a book-stall, and purchased by Professor Oertel, for little more than one penny, and has been re-published; it is interesting to all who regard with attention that great moral change which the Water-cure is calculated to effect. In Dr. Hahn's work, it is stated that Pater Bernardo, a Capuchin monk from Sicily, went in the year 1724 to Malta, and there made some most astonishing water-cures, the fame of which spread throughout Europe: he used iced water internally and externally, and allowed his patients to eat but very little. He made a proposition that the doctors should take 100 patients, and said if they, by their mode of treating them, could cure forty, then would he undertake to cure sixty more easily and securely, and in a shorter time. His remedy of iced water, was just as effectual in winter as in summer. A case is cited of a man, ninety-two years of age, who was at the point of death from the virulence of a fever, and was cured with cold water only. Evan Hahnemann, father of Homeopathy, in a work published at Leipsic, 1784, recommends fresh water, without which, he says, ulcers of any long standing cannot be cured, and adds, if there be any general remedy for disease, "it is water." The Rev. John Wesley, A.M., published a work in 1747 (about a century ago), which went through thirty-four editions, called "Primitive Physic, or an Easy and Natural Method of Curing most Diseases." After deprecating the manner in which drugs were imposed upon mankind, the mysteries with which the science of medicine is surrounded, and the interested conduct of medical men, the Rev. gentleman proceeds to shew, that he was fully aware of the healing powers of water; and from the long list which he has given, and which follows, it will be evident that he thought water capable of curing almost every disease to which human nature is exposed. He writes:-- "The common method of compounding and decompounding medicines, can never be reconciled to common sense. Experience shews, that one thing will cure most disorders, at least as well as twenty put together. Then why do you add the other nineteen? Only to swell the apothecary's bill! nay, possibly on purpose to prolong the distemper, that the doctor and he may divide the spoil. "How often, by thus compounding medicines of opposite qualities, is the virtue of both utterly destroyed? "Nay, how often do those joined together destroy life, which singly they might have preserved?