JOANNES ISAACUS (called Hollandus). Die Hand der Philosophen mit ihren verborgenen Zeichen. Wie auch desselben Opus Saturni mit annotationibus. Item: Opera Vegatabilia... Frankfurt: Götzens, MDCLXIVI [i.e. 1667]. 12 engravings and 16 text woodcuts -- Das Dritte Theil des Mineral-Werks Johannis Isaci Hollandi... Frankfurt: Götzens, 1666. 4 engraved plates -- Tractatus de Lapide Philosophico. Frankfurt: Goekens, 1669. Several small text woodcuts. Together 3 works/parts in one, 8vo, contemporary vellum; title of first work with 2 small rectangular portions excised (not affecting text), some margins trimmed close (affecting some shoulder notes). Ferguson I, 413.