CASSINI, J. - DISCOVERY OF THE INCLINATION OF A SATELITTE.

Nouvelles Decouvertes sur les Mouvements des Satellites de Saturne.

(Paris, L'Imprimerie Royale, 1717). 4to. Without wrappers. Extracted from "Mémoires de l'Academie des Sciences. Année 1714". Pp.361-378 and 1 folded engraved plate.

First printing of the paper in which Cassini describes his discovery of the inclination of the orbit of Saturn's fifth satellite.

Order-nr.: 45962