[Alchemy] Hollandus, J.I. Geheimer und biss Dato verborgen gehaltener trefflicher Tractat,

von ihm genant: Die Hand der Philosophen, mit ihren verborgenen Zeichen. Wie auch desselben Opus Saturni mit annotationibus. Item: Opera vegetabilia, so viel davon biss dato hat können erforschet werden. (...) auss erforscheten Niederländischen Manuscriptis verhochdeutschet (...). Frankfurt, Th.M. Götzen, MDCLXIVI (=1667), 384 (=382) p., w. 12 engr. ills. (2x full-p.) and 16 woodcut ills., cont. overlapping vellum w. remnants of ties.

Pagination skipping p. 317-318 as always, browned throughout, title-p. loosening, a few other imperfections. Provenance: From the library of the Franciscan Friars of Misericordiae in Graz (Austria), w. stamp 'F.F.M. Graz' on title-p. and 'Ex libris Biblioth: Fr: Fr: Misericordiae Graecii' (and shelf details) in pen on upper pastedown. The very rare first edition. On the author, see Van der Aa, Biografisch Woordenboek der Nederlanden, vol. 8, part 2, p. 987. Isaäc and his son Johan Isaäc (the author of the present work) were both famous 15th century Dutch chemists, greatly influencing the later chemists Stahl, Paracelsus and Boyle, and mentioned by Boerhaave and Lenglet du Fresnoy.