Leiden MS. Vossianus Chym. F. 4. 349 folios. Paper. 310x195mm. 16th Century. 1. f1-72 M. Balcorinus, Summa alchimiae. 2. f74-120v Albumasar, Flores astrologiae. 3. f121-170 Harmonia oder concordantia etlicher sprachen. 4. f171-181v Haymo, Decem secreta artis alchimiae. 5. f182v-187 Magister Joannes Claudianus Olomucensis, Einn sonderlich secret. 6. f187v-191 De subtili medicina omnium rerum per quoddam sal ignotum. 7. f192-200 Haymo, decem secreta artis chimiae [in Latin.] 8. f200-204v Joannes Claudianus Olumucensis, Secretum peculiare [in Latin.] 9. f205-222v De subtili medicina omnium rerum per quoddam sal ignotum [In Latin.] 10. f223-232v Bibliotheca [in Latin.] 11. f233-238 De tribus lapidibus philosophorum. 12. f239-246v Joannes Swiduvas [Ouroscopion - Gr.] [In German and Latin.] 13. f247-272 [Various short notes on magic, etc.] 14. f273-275v Joannes Trithemius, Epistula de Steganographia. 15. f280-321 [Various pieces of legal and diplomatic correspondence.]