FLUDD, ROBERT. Tomus secundus de supernaturali, naturali, praeternaturali et contranaturali Microcosmi historia. Double-page engraved plate in part 3; engraved and woodcut illustrations and diagrams throughout. 277, [3]; 191, [13]; [12], 199 pages, including general half-title ("Microcosmi Historia"), engraved title, and blanks 2M4 and 2b6. 3 parts in one volume * Veritatis proscenium . . . seu Demonstratio quaedam analytica, in qua cuilibet comparationis particulae . . . à Joanne Kepplero . . . factae inter Harmoniam suam mundanam, & illam Roberti Fludd . . . respondetur. 54 pages; lacks final blank. Together, 2 volumes in one. Folio, 315x200 mm, contemporary vellum boards, soiled, ties lacking; contents severely browned, paper brittle, later 19th-century owner's occasional blue pencil underscoring (and note "nihil intellexi"), top line of engraved title and text passages on m3 in first work imperfectly inked over, with oxidation causing paper cracks and slight text loss, half-title loose, rear free endpaper lacking. Oppenheim: Johann Theodore de Bry for Hieronymus Galler, 1619-21; Erasmus Kempffer for Johann Theodore de Bry, 1621