1. Harley MS 13, ff 117r-119v Reference (shelfmark): Harley MS 13, ff 117r-119v Title: Thebit ben Corat, De motu octave spere Scope & Content: Thebit ben Corat, De motu octave spere (in the Latin translation). Decoration: An illuminated initial 'I'(n) in gold and colour at the beginning of the text (f 117r). Includes 1 diagram of the movements of the sphere (f 118r) and a table. Collection Area: Western Manuscripts Languages: Latin Date Range: c 1290-c 1310 Extent: 3 folios.