Rosarium philosophorum

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The Rosarium philosophorum sive pretiosissimum donum Dei ('Rose-garden of the philosophers, or most valuable gift of God') is an illuminated manuscript containing an alchemic treatise dated to 1578. It contains a Czech translation of an earlier medieval Latin alchemic tract titled Rosarium philosophorum. Its author is Jaroš Griemiller z Trebska. It is notable for the high artistic value of its miniatures, which is unusual for manuscripts of its type. It is kept in the National Library of Prague, Czech Republic.