that lay waiting to receive him. In the sixteenth century, the same system was pursued, as will be shewn more fully in the life of Seton the Cosmopolite.
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 Alchymiæ, 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 abridgment 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.
