II. devoted much of their attention to it; and every inferior potentate within their dominions imitated their example. It was a common practice in Germany, among the nobles and petty sovereigns, to invite an alchymist to take up his residence among them, that they might confine him in a dungeon till he made gold enough to pay millions for his ransom. Many poor wretches suffered perpetual imprisonment in consequence. A similar fate appears to have been intended by Edward II. for Raymond Lulli, who, upon the pretence that he was thereby honoured, was accommodated with apartments in the Tower of London. He found out in time the trick that was about to be played him, and managed to make his escape, some of his biographers say, by jumping into the Thames, and swimming to a vessel that lay waiting to ceive him. In the sixteenth century, the same system was pursued, as will be shown more fully in the life of Seton the Cosmopolite, in the succeeding chapter.

The following is a catalogue of the chief authors upon alchymy, who flourished during this epoch, and whose lives and adventures are either unknown or are unworthy of more detailed notice. John Dowston, an Englishman, lived in 1315, and wrote two treatises on the philosopher’s stone. Richard, or, as some call him, Robert, also an Englishman, lived in 1330, and wrote a work entitled Correctorium Alchymi&oelig, which was much esteemed till the time of Paracelsus. In the same year lived Peter of Lombardy, who wrote what he called a Complete Treatise upon the Hermetic Science, an abridgement of which was afterwards published by Lacini, a monk of Calabria. In 1330 the most famous alchymist of Paris was one Odomare, whose work De Practica Magistri was, for a long time, a hand-book among the brethren of the science. John de Rupecissa, a French monk of the order of St. Francis, flourished in 1357, and pretended to be a prophet as well as an alchymist. Some of his prophecies were so disagreeable to Pope Innocent VI, that the Pontiff determined to put a stop to them, by locking up the prophet in the dungeons of the Vatican. It is generally believed that he died there, though there is no evidence of the fact. His chief works are the Book of Light, the Five Essences, the Heaven of Philosophers, and his grand work De Confectione Lapidis. He was not thought a shining light among the adepts. Ortholani was another pretender, of whom nothing is known, but that he exercised the arts of alchymy and astrology at Paris, shortly before the time of Nicholas Flamel. His work on the practice of alchymy was written in that city in 1358. Isaac of Holland wrote, it is supposed, about this time; and his son also devoted himself to the science. Nothing worth repeating is known of their lives. Boerhaave speaks with commendation of many passages in their works, and Paracelsus esteemed them highly: the chief are “De Triplici Ordine Elixiris et Lapidis Theoria,” printed at Berne in 1608; and “Mineralia Opera, seu de Lapide Philosophico,” printed at Middleburg in 1600. They also wrote eight other works upon the same subject. Koffstky, a Pole, wrote an alchymical treatise, entitled The Tincture of Minerals, about the year 1488. In this list of authors a royal name must not be forgotten. Charles VI. of France, one of the most credulous princes of the day, whose court absolutely swarmed with alchymists, conjurers, astrologers, and quacks of every description, made several attempts to discover the philosopher’s stone, and thought he knew so much about it, that he determined to enlighten the world with a treatise. It is called the Royal Work of Charles VI. of France, and the Treasure of Philosophy. It is said to be the original from which Nicholas Flamel took the idea of his Désir Désiré. Lenglet du Fresnoy says it is very allegorical, and utterly incomprehensible. For a more complete list of the hermetic philosophers of the fourteenth and fifteenth centuries, the reader is referred to the third volume of Lenglet’s History already quoted.

Progress of the Infatuation During the Sixteenth and Seventeenth Centuries—Present State of the Science

    During the sixteenth and seventeenth centuries, the search for the philosopher’s stone was continued by thousands of the enthusiastic and the credulous; but a great change was introduced during this period. The eminent men who devoted themselves to the study, totally changed its aspect, and referred to the possession of their wondrous stone and elixir, not only the conversion of the base into the precious metals, but the solution of all the difficulties of other sciences. They pretended that by its means man would be brought into closer communion with his Maker; that disease and sorrow would be banished from the world; and that “the millions of spiritual beings who walk the earth unseen” would be rendered visible, and become the friends, companions, and instructors of mankind. In the seventeenth century more especially, these poetical and fantastic doctrines excited the notice of Europe; and from Germany, where they had