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See also:PIERRE See also: Amongst the fruits of his See also:industry may be mentioned a laborious investigation of the disturbances of See also:Jupiter by See also:Saturn, the results of which were employed and confirmed by L . See also:Euler in his See also:prize See also:essay of 1748; a See also:series of lunar observations extending over fifty years; some interesting researches in terrestrial See also:magnetism and atmospheric See also:electricity, in the latter of which he detected a See also:regular diurnal See also:period; and the determination of the places of a See also:great number of stars, including twelve See also:separate observations of See also:Uranus, between 1765 and its See also:discovery as a See also:planet . In his lectures at the college de See also:France he first publicly expounded the See also:analytical theory of See also:gravitation, and his timely patronage secured the services of J . J . See also:Lalande for astronomy . His See also:temper was irritable, and his hasty utterances exposed him to retorts which he did not readily forgive . Against Lala nde, owing to some trifling pique, he closed his doors " during an entire revolution of the See also:moon's nodes." His career was arrested by See also:paralysis See also:late in 1791, and a repetition of the stroke terminated his See also:life . He died at Heril near See also:Bayeux on the 31st of May 1799 . By his See also:marriage with Mademoiselle de Cussy he See also:left three daughters, one of whom became the wife of J . L . See also:Lagrange . He was admitted in 1739 to the Royal Society, and was one of the one See also:hundred and See also:forty-four See also:original members of the See also:Institute . He wrote Histoire See also:celeste (1741) ; Theorie See also:des cometes (1743), a See also:translation, with additions of See also:Halley's Synopsis; Institutions astronomiques (1746), an improved translation of J . Keill's See also:text-See also:book; Nouveau zodiaque (1755); Observations de la tune, du soleil, et des etoiles fixes (1751—1775) ; Lois du magnetisme (1776—1778), &c, See J . J . Lalande, Bibl. astr., p . 819 (also in the See also:Journal des savants for 18o1); F . X. von See also:Zach, Allgemeine geog . Ephemeriden iii . 625; J . S . See also:Bailly, Hist. de l'astr. moderne, iii.; J . B . J . Dclambre . Hirt. de l'astr. au XVIII'. siecle, p . 179; J . Marilee, eschichte der Himmelskunde, ii . 6; R . See also:Wolf, Geschichte der Astronomic, p . 480 . |
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