Cambridge, University Library MS. Ii. iii. 17. 137 folios. Parchment. Small Folio. 15th Century. [A collection of tracts and recipes in alchemy and astrology. From original defects of the material as well as from dirt the first two leaves are nearly illegible. Among the tracts are some by Theodoric, Avicenna, and Rhasis. The volume is incomplete at the end. An old title of the volume is given at the beginning 'Rosarium Medicum'.]