Wolfenbüttel, Herzog-August-Bibliothek MS. Extrav. 286.1. 180 folios. Paper. 165x110mm. 16th Century [1505-7.] [Alchemy book of Martin Vreter.] 1. f2r Thesaurus Philosophiae [Archelaus.] 2. 12r [Alchemical treatise.] 3. f67v Hermes Trismegistus. Tabula smaragdina. 4. 78r Hermes Trismegistus. Incipit epistola Hermetis facta de operacione lapidis... 5. f82r Hermes Trismegistus. Allegoriae sapientum. 6. f106r Arnaldus de Villanova. Epistula ad papam Bonifacium VIII. 7. f112v Liber Adae. 8. f116r Rosarius philosophorum omnium secretorum maximum secretum. 9. f148r Rosarius minor. 10. f168v Opus philosophicum perscripti operis [recipe.] 11. f170r Epistula. Cuiusdam phisici epistola responsiva super dubia artis. 12. 176r Epistola magistri Arnoldi de Villa Nova super Alkimia ad regem Nepolitanum. 13. f180 [Recipes and notes.]