Academia Del Cimento & Magalotti, Lorenzo; Saggi Di Naturali Esperienze Fatte nell'Accademia Del Cimento. Sotto la Protezione dl Serenissimo Principe Leopoldo di Toscana e descritte dal segretario di essa accademia. Seconda Edizione. In Firenze, Nella Nuova Stamperia di Gio: Flippo Cecchi, 1691. Small folio, pp. half title, engraved title page in red and black with engraved vignette, frontispiece portrait, 11, CCLXIX, 1 blank, 2, 12, 1 blank, 1, errata before index, license with register at end, engraved head and tail-piece vignettes, large historiated woodcut initials, 75 full page engravings of experimental apparatus, .In later full panelled calf with six decorative gilt spine panels and titles, smudging on first endsheet and lower edge of half title sheet, also at a few lower page edges,. A very good copy of the very rare second edition.

The second edition of "Saggi Di Naturali" is essentially unchanged from the first edition, was published in a very limited printing and is just as rare as the first edition.