Books in Volume Stockholm, K. Bibl. RAR 106 A Fol. (previous R. 3.3, VI. 20) Volumes Annotations Home Search AuthorTitle 1. Sacrobosco, Iohannes de; 2. Theodosius; 3. Michael Scotus; 4. Petrus de Aliaco; 5. Prolemaeus; 6: Iohannes Cremonensis. 1. Sphera mundi; 2. De spheris; 3. Questiones; 4. Quaestiones; 5. De speculis; 6. Theorica Planetarum. Volume Annotations