Glasgow University Library MS. Ferguson 209. 107 folios, on vellum. 194x140mm. 15th/16th Century. 1. f3-39 Tractatus urinarum Isaac translatus a quonstantino africano [Constantinus Africanus] in latinam linguam. [Isaac Judeus [Ishak ibn Sulaiman al-Israil], 'Omnia Opera Ysaac', 1515.] 2. f39v Incipiunt uersus Egidii de urinis. [Various recipes and medical notes.] [Old armorial bookstamp 'Comes donatus silvat' stamped on flyleaf.]