Bodleian Library MS. Marsh 144. 111/435. "Perseus (barshawush, or hamil ra's al-ghul), the bearer of the demon's head. (Constellations of the northern hemisphere). | Al-Sufi's Book of the Fixed Stars, a revision of Ptolemy's Almagest with Arabic star names and drawings of the constellations. Dated 1009-10 (A.H. 400)"