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Genre Manuscripts Remove constraint Genre: Manuscripts Creator Bonus, Petrus, active 1323-1330 Remove constraint Creator: Bonus, Petrus, active 1323-1330

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    • The Precious New Pearl
    • circa 1450 – 1480

    This is one of only six known complete manuscripts of a 14th-century alchemical treatise; all the extant manuscripts date from the 15th century or later. This copy includes lengthy contemporary glosses, possibly…