VISCONTI (Sigismond) - DUFOUR (Auguste-Henri). Tableaux du système planétaire. Paris : Ch. Simonneau, F. Delamarche, 1830. - In-folio, gray half cloth with corners, publisher's blue printed label on front cover, smooth spine decorated (period binding). First edition of the atlas alone, which is almost always found like this, but which must originally have been accompanied by an in-12 précis, as indicated on the title. It comprises 7 superb double-page plates, engraved by A. Gianni after drawings by Sigismond Visconti for the first 5, by Visconti revised by Auguste-Henri Dufour for the 6th and by Dufour for the last. These 7 plates are titled: Système solaire. - Orbit of the Earth's annual revolution around the Sun, with indication of the Seasons. - Phases of the Moon. - Eclipses of the Sun and Moon. - Flux and Reflux. - Cross-section of the Earth taken on the Equator and seen from the side of the Arctic Pole. - Planisphere. Printed copy with all plates in black except the last one. Wear and wetness to binding and endpapers, one corner recessed, stains and soiling. Scattered foxing on the title leaf and in the margins of the plates.