1. Harley MS 531, ff 4v-12r Reference (shelfmark): Harley MS 531, ff 4v-12r Title: Iohannes de Sacro Bosco, De sphera Scope & Content: Iohannes de Sacro Bosco, De sphera. Decoration: 4 diagrams in red ink of planetary spheres (f. 4v), and lunar and solar eclipses (f. 12r). Initials in red and blue. Collection Area: Western Manuscripts Languages: Latin Date Range: 1272 Extent: 9 folios.
