ADAMS, GEORGE, the Younger. Essays on the Microscope. Mezzotint allegorical frontispiece. xxiii, [1], 724 pages, including half-title. With atlas containing 36 engraved plates on 32 leaves, lacking the letterpress title. Together, 2 volumes. Text volume 4to, 270x207 mm, contemporary calf, rebacked, contents toned toward end, frontispiece foxed and dampstained; plate volume oblong folio, 285x424 mm, modern cloth with original board covers laid down, contents foxed and dampstained, plate 1 trimmed in blank lower margin, repaired clean tear in plate 18. Bookplates of Francis F. Lucas and William McGrath in text volume. first edition. London: Robert Hindmarsh for the Author, 1787