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Latin: "Letter" (here referring to the Dedicatory Epistle)
Trevisan’s Apostolic Creed, very neatly and properly compared with the great miracle stone of the ancient sages and clearly explained: He Bernard Trevisan (1406–1490), a famous Italian alchemist who spent decades searching for the Stone flourished around the year of Christ 1453 and thereafter in his old age; before his passing, according to his own confession, he prepared the blessed stone of the wise four more times.
The third small treatise—in which the matter of the Philosopher’s Stone Philosopher’s Stone: Lapis Philosophorum, the legendary substance believed to transmute base metals into gold and act as a universal medicine together with the very root of the first tincture Tincture: In alchemy, a concentrated essence or "dye" capable of transforming the inner nature of a substance is most excellently and heartily indicated—is by Brother Vincentius Koffskhi of Poznań, of the Order of Preachers in Danzig in Prussia, who passed away in the year of Christ 1488. He left this work behind, walled up in a cloister walkway original: Creutzgang in a wall in the Black Monks' monastery The Dominicans were often called "Black Friars" or "Black Monks" due to their black mantles, written with golden letters.
These three excellent and well-founded small treatises, together with the second part of this Golden Olympic Little Treasury original Latin: Thesaurinellæ Olympicæ aureæ, etc., I have thus compiled into a small book and wished to bring into the public light original Latin: in publicam lucem edirn in such a form under Your Imperial Majesty’s most praiseworthy and mighty patronage original Latin: Patrocinio, against all enemies, persecutors, mockers, and blasphemers of this art and its lovers, and to communicate them to the Sons of Learning original Latin: Filiis doctrinæ; a traditional term for students of alchemy and hermetic philosophy.
With most humble prayer and in undoubted, comforting hope, that Your Imperial Majesty will not only most graciously accept and receive this my insignificant dedication in all mercy, but also [receive] me, as a lover of chemistry original Latin: Philochemicum and one devoted to both medicines This likely refers to the "twofold medicine": the medicine for the human body and the "medicine" for base metals (transmutation), with most gracious—