Psellus De Lapidum Virtutibus Graece Ac Latine Cum Notis Phil. Jac. Maussaci Et Joan. Steph. Bernard. Accedit Fragmentum De Colore Sanguinis Ex Doctrina Medica Persarum Nunc Primum Ex Codice Ms.

This book is a bilingual edition of Psellus's treatise on the virtues and properties of stones, updated and annotated by Michel Psellos, Phil Jac Maussac, and Joan Steph Bernard. It also includes a new fragment on the color of blood in Persian medicine, published for the first time from a manuscript in the Library of Leiden.

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