Al-Farabi's Arabic-Latin writings on music : in the Ihsa al-'ulum (Escorial library, Madrid, no. 646), De scientiis (British museum, Cott. M.S. Vesp. B.X., and Bibi. Nat., Paris, no. 9335), and De ortu sciantiarum (Bibi. Nat., Paris, no. 6298 and Bodleian library, Oxford, no. 3623), etc. - Fārābī, (Collection of oriental writers on music ;)