1. Harley MS 3814 A, ff 23r-43r Reference (shelfmark): Harley MS 3814 A, ff 23r-43r Title: Johannes de Sacro Bosco, Tractatus de sphaera Scope & Content: Decoration: Large puzzle initial 'T'(ractatus) in blue and red. Smaller initials in blue with red pen-flourishing, or in red with blue pen-flourishing. Paraphs in red or blue. 1 circular diagram of the planetary spheres around the Earth (f. 23v). Collection Area: Western Manuscripts Languages: Latin Date Range: Mid 13th century Extent: 21 folios.
