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Urbain Jean Joseph le Verrier, "Premier Memoire sur la theorie d'Uranus", in "Comptes Rendus hebdomadaires des seances de l'Academie des Sciences", Paris, Bachelier, volume 21, 1845, with Le Verrier's paper on pp 1050-1055, and offered in the full bound volume of 1502pp. Bound in a modern standard blue library cloth; old German university rubber stamp on rear title page. Very crisp and bright. [++] This is the first publication of Le Verrier's prediction for the planet beyond Uranus, the discovery of which was made the next year (1846) to 1-degree of where he predicted it to be. [++]"The planet Neptune was mathematically predicted before it was directly observed. With a prediction by Urbain Le Verrier, telescopic observations confirming the existence of a major planet were made on the night of September 23 24, 1846, at the Berlin Observatory, by astronomer Johann Gottfried Galle (assisted by Heinrich Louis d'Arrest), working from Le Verrier's calculations. It was a sensational moment of 19th century science and dramatic confirmation of Newtonian gravitational theory. In François Arago's apt phrase, Le Verrier had discovered a planet 'with the point of his pen'.--Wiki [++] There are numerous papers presented in this volume on the electric telegraph, including one short mention by Arago of the Morse telegraph's exhibition in 1844 of the successful (and revolutionary) demonstration of nearly-simultaneous Washington-Baltimore communication. [++] Also: FIZEAU and FOUCAULT, "Sur le phenomenes des interferences entre deux rayons de lumiere dans le cas de grandes differences de marche" pp 1155-1157. [++] Also in this volume are papers by Flourens, Faraday, Dufour, Brongnart, Cauchy, Biot, Bory de St.-Vincent, Arago, Magendie, Lioville, Pelouze, and many others. FNCH 004 FNCH 007.
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