British Library MS. Sloane 3832. Paper. Folio. 337 folios. 17th Century. 1. A treatise of the vegetable stone, in two parts; by Johannes Isaacus Hollandus; [in Dutch - with a few notes in Latin by Herman Boerhaave (f.87)]. ff.3-93. Printed in German, with some omissions, under the title of Johannes Isaci Opera vegetabilia; oder Vegetabilischer Schrifften und Tractaten, so viel bisz dato von seinem grossen und in ganz Europa verlangetem opere vegetabili hat mogen erforschet werden, with other works of the same author, Frankfort, Octave, 1667, p.182. 2. A treatise of the mineral stone, by Johannes Isaacus Hollandus [In Dutch with a few notes in Latin, by Herman Boerhaave (f.177)]. ff.94-272. Printed in Latin; ed. in Octavo Arnhemii, 1616. 3. 'Het boeck van her Handt der Philosophen, van Meester Isaack Philosophe, gheboren in Hollande', etc. ff.273-295. Compare the German translation, printed under the Title of Die Hand der Philosophen, mit ihrren verborgenen zeichen, with other works of the same author; ed. in Octavo, Francofort, 1667. p.14. 4. Three works of the great Elixir, by Johannes Isaacus Hollandus [In Dutch]. ff.296-310. Printed, with omissions, in German as above, p.96. 5. 'Eine preparatie van [Sign for urine], om die tincturen vuyt vel mineraelen mede vuyt te trechen, ghelych men voorenzien mach int Boeck van der handt; ende is van Meester Isaacq van Hollandt'. ff.311-313. Compare the printed work referred to under article 3, p.88. 6. Alchemical Processes [In Dutch]. f.314-320. 7. 'De Cabula van de Philosophe Isaacq den Hollander mit Corte'. ff.321-337. Printed, in German, with the third part of the Mineralia of the same author; ed. in octavo, Francofort, 1666, p.157.