Restored and enlarged:

Most faithfully instructing all Disciples of the Sopho-Spagyric Art how that Greatest and Truest Medicine of the Philosopher's Stone may be found and held. Now first done into English from the Latin original published at Frankfort in the year 1678.

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This work represents a distinctive school of alchemy – it belonged to a period that had inherited a bitter experience of the failures, impostures, and misery surrounding the "Magnum Opus" and its mystical quest. The treatises contained in this volume are by the authors of historical legend: John de Mehung, Nicholas Flamel, Basil Valentine, Eirenaeus Philalethes, Helvetius, Michael Maier, Michael Sendivogius, Nicholas Barnaud Delphinas, and Basilius Valentinus. Illustrated.