1. Alchemical miscellany Creator: Johannes, de Rupescissa, ca. 1300-ca. 1365Llull, Ramon, 1232?-1316 Published / Created: 1528 Call Number: Mellon MS 30 Image Count: 327 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > Alchemical miscellany
2. De consideratione quinte essentie Creator: Johannes, de Rupescissa, ca. 1300-ca. 1365 Published / Created: [ca. 1475] Call Number: Mellon MS 16 Image Count: 85 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > De consideratione quinte essentie