British Library MS. Sloane 2101. Paper. Folio. 107 folios. 17th Century. 2. De alchymia tractatulus. ff.10-12. 3. De generatione sulphure vulgi et mercuriae, etc. ff.13-15. 4. 'An admonition wherein the author declareth his erronious experiments', in verse. f.16. Begins: 'After all this I will thou understand.' 5. 'The Epistle by the same author written to King Edward the 4th', in verse. f17b. Begins: 'O honorable lord and most victorious Knight.' 6. Various Alchymical observations, in French. ff.19-31.