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CASSINI DE THURY, César François (1714-1784). La meridienne de l'Observatoire Royal de Paris vérifiée dans toue l'étendue du royaune par nouvelle observations. Paris: Hippolyte-Louis Guerin & Jacques Guerin, 1744.
4o (244 x 184 mm). Half-title. Engraved headpieces by Moreau. 14 folding engraved plates, including 5 maps (plate X with 2-inch tear at inner margin). Contemporary marbled calf, spine gilt with red morocco lettering-piece, edges stained red (some light wear at spine ends, small wormhole on back cover, joints tender). Provenance: early ownership signature on half-title; Joachim Faucher (bookplate).
FIRST EDITION. In this present treatise, Cassini de Thury disproves his father, Jacques Cassini's, view that the earth is elongated at the poles, instead believing the Newtonian theory that the earth was flattened at the poles. This treatise is published as the Suite des Mémoires de l'Académie Royale des Sciences for the year 1740. Norman 413.
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FIRST EDITION. In this present treatise, Cassini de Thury disproves his father, Jacques Cassini's, view that the earth is elongated at the poles, instead believing the Newtonian theory that the earth was flattened at the poles. This treatise is published as the Suite des Mémoires de l'Académie Royale des Sciences for the year 1740. Norman 413.