1. De sphaera, etc. Creator: Askham, Anthony, fl. 1553Sacro Bosco, Joannes de, fl. 1230 Published / Created: 1526-27 Call Number: Beinecke MS 337 Image Count: 10 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > De sphaera, etc.
2. Tractatus de sphaera Creator: Sacro Bosco, Joannes de, fl. 1230 Published / Created: [between 1450 and 1500] Call Number: Beinecke MS 797 Image Count: 80 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > Tractatus de sphaera