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First edition of the scientific account of an expedition to the equator

CONDAMINE, Charles Marie de la.
Journal du voyage fait par l'ordre du roi, a l'équateur, servant d'introduction historique a la mesure des trois premiers degre's du me'ridien.- Mesure des trois premier degre's du me'ridien dans l'hemisphere Austral, tirée des observations de Mrs. de l'académie royale des sciences, envoyés par le roi pour l'équateur.

With 5 foldings plans, views and maps, including one large map of the Quito province, folding woodcut table, full-page engraving, engraving in text; engraved vignette of a globe on title, 2 engravings in text, several woodcut tables, and 3 engraved plates depicting several measurement results and a measuring instrument.

With 5 foldings plans, views and maps, including one large map of the Quito province, folding woodcut table, full-page engraving, engraving in text; engraved vignette of a globe on title, 2 engravings in text, several woodcut tables, and 3 engraved plates depicting several measurement results and a measuring instrument.

With 5 foldings plans, views and maps, including one large map of the Quito province, folding woodcut table, full-page engraving, engraving in text; engraved vignette of a globe on title, 2 engravings in text, several woodcut tables, and 3 engraved plates depicting several measurement results and a measuring instrument.

With 5 foldings plans, views and maps, including one large map of the Quito province, folding woodcut table, full-page engraving, engraving in text; engraved vignette of a globe on title, 2 engravings in text, several woodcut tables, and 3 engraved plates depicting several measurement results and a measuring instrument.

With 5 foldings plans, views and maps, including one large map of the Quito province, folding woodcut table, full-page engraving, engraving in text; engraved vignette of a globe on title, 2 engravings in text, several woodcut tables, and 3 engraved plates depicting several measurement results and a measuring instrument.



Paris, de l'imprimerie royale, 1751. 4 parts in 2 vols. 4to. Contemporary marbled calf, spine gilt, with red and green title labels, small central inlaid morocco ornament on front covers, decorated with a gilt border of small flowers and a sailing ship in centre, sprinkled edges. With 5 foldings plans, views and maps, including one large map of the Quito province, folding woodcut table, full-page engraving, engraving in text; engraved vignette of a globe on title, 2 engravings in text, several woodcut tables, and 3 engraved plates depicting several measurement results and a measuring instrument. (12), 266, X; XXXVI, 280, XV, (1 blank) pp.

With:
IDEM. Supplément au journal historique du voyage a l'equateur, et au livre de la mesure des trois premiers degrés du meridien: servant de réponse à quelques objections.- Supplément au journal historique (...): pour servir de réponse aux objections de M.B. Paris, Durand, Pissot, 1752, 1754. (4), VIII, 52; (8), 222 (=220), XXVIII, (2) pp.

First edition of the scientific account of the expedition to the equator by Charles Marie de la Condamine. The French Academy sent two expeditions in 1735, one to the Arctic region, the other to the Equator. Purpose of these expeditions was to take measurements of an area of the meridian to determine the dimensions and figure of the earth more accurately. The principal members of the French group were La Condamine, Bouger, and Godin. Quito was chosen as the place to take the actual measurements, because of its location near the equator. A major conclusion of the expedition, together with the results from the Polar region, was that the earth was flatter around the Poles. After the expedition's return to France, a controversy arised between Bouger and La Condamine. Part of this discussion can be found in the two supplements, which were intended to answer the objections made by Bouguer in his Justification, published in 1752.

Fine copy.- (Very few small brown stains).
Ad 1: Borba de Moraes p. 447; JCB 946; Sabin 38479; Bosch 201 I; ad 2: Borba de Moraes, p. 447; JCB 947; Sabin 38483; Bosch 201 II; on pp. 219-271 cf.: Leclerc 1477 (Histoire des pyramides de Quito, 1751); ad 3: Borba de Moraes, p. 447; Sabin 38490; Ad 4: Sabin 48490.

Related Subjects: America [South]  Cartography 

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