109. MAUPERTUIS (Pierre-Louis Moreau de). Œuvres. Lyon, J.-M - Lot 109

109. MAUPERTUIS (Pierre-Louis Moreau de). Œuvres. Lyon, J.-M. Bruyset, 1768. 4 volumes in-8, xxxvi, 309 p., [3] p. ; iv, 431 p., [6] f. ; iv, 468 p., [4] f. ; viii, [6] f., 346 p., [3] p., bound in blue paste paper boards. New edition of Maupertuis' scientific works: the parallax of the moon, nautical astronomy (illustrated with numerous sketches), the measurement of the earth at the polar circle, cosmology and the figure of the stars, etc. The text is illustrated with a frontispiece portrait and a map of the meridian arc measured at the Arctic Circle for the Relation d'un voyage au fond de la Lapponie pour trouver un ancien monument. An untrimmed copy with wide margins, but a modest copy with some foxing, scorched pages, a torn title page with no missing parts, and other minor defects (DSB, IX, 189a for the first ed. of 1756).