Turba Philosophorum

The Turba Philosophorum, also known as Assembly of the Philosophers, is one of the oldest European alchemy texts, translated from the Arabic, like the Picatrix. It has been claimed that it was written as early as the 12th century.

In print, the title occurs in the Auriferae artis, quam chemiam vocant, antiquissimi authores, sive Turba philosophorum of 1572, and later works.