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JACQUES DOMINIQUE CASSINI

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Originally appearing in Volume V05, Page 459 of the 1911 Encyclopedia Britannica.
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JACQUES DOMINIQUE See also:

CASSINI , See also:Count (1748-1845), son of Cesar See also:Francois Cassini, was See also:born at the See also:observatory of See also:Paris on the 3oth of See also:June 1748. He succeeded in 1784 to the directorate of the observatory; but his plans for its restoration and re-equipment were wrecked in 1793 by the animosity" of the See also:National See also:Assembly. His position having become intolerable, he resigned on the 6th of See also:September, and was thrown into See also:prison in 1794, but released after seven months. He then withdrew to Thury, where he died, aged ninety-seven, on the 18th of See also:October 1845. He published in 1770 an See also:account of a voyage to See also:America in 1768, undertaken as the See also:commissary of the See also:Academy of Sciences with a view to testing See also:Pierre Leroy's watches at See also:sea. A memoir in which he described the operations superintended by him in 1787 for connecting the observatories of Paris and See also:Greenwich by See also:longitude-determinations appeared in 1791. He visited See also:England for the purposes of the See also:work, and saw See also:William See also:Herschel at See also:Slough. He completed his See also:father's See also:map of See also:France, which was published by the Academy of Sciences in 1793. It served as the basis for the See also:Atlas National (179,), showing France in departments. Count Cassini's Memoires pour servir a l'histoire de l'observatoire de Paris (181o) embodied portions of an extensive work, the See also:prospectus of which he had submitted to the Academy of Sciences in 1774. The See also:volume included his 'Doges of several academicians, and the autobiography of his See also:great-grandfather, the first Cassini. See J.

F. S. Devic, Histoire de la See also:

vie et See also:des travaux de J. D. Cassini (1851); J. See also:Delambre, Histoire de l'astronomie au XVIII' siecle, pp. 309-313; Phil. Mag. 3rd See also:series, vol. See also:xxviii. p. 412; C. See also:Wolf, Histoire de l'observatoire de Paris (1902), p. 234 et passim.

(A. M.

End of Article: JACQUES DOMINIQUE CASSINI

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