1825 in science

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The year 1825 in science and technology involved some significant events, listed below.

Astronomy

Pierre-Simon Laplace completes his study of gravitation, the stability of the solar system, tides, the precession of the equinoxes, the libration of the Moon, and Saturn's rings in Mecanique Celeste.

Richard Harlan publishes Fauna Americana.
Charles Waterton publishes Wanderings in South America, the North-west of the United States, and the Antilles, in the years 1812, 1816, 1820, and 1824; with original instructions for the perfect preservation of birds, &c. for cabinets of natural history.

G. Poulett Scrope publishes Considerations on Volcanoes, the first systematic work on volcanology.^[1]

Augustin-Louis Cauchy presents the Cauchy integral theorem for general integration paths—he assumes the function being integrated has a continuous derivative.
Augustin-Louis Cauchy introduces the theory of residues in complex analysis.
Johann Peter Gustav Lejeune Dirichlet and Adrien-Marie Legendre prove Fermat's last theorem for n = 5.
André-Marie Ampère discovers Stokes' theorem.

Jean-Baptiste Sarlandière's Mémoires sur L'Électro-Puncture introduces Western medicine to electroacupuncture.^[2]

Georges Cuvier proposes his catastrophe theory as the cause of extinctions of large groups of animals.
Étienne Geoffroy Saint-Hilaire identifies Cuvier's fossil `crocodile´ as a teleosaurus.

August - The wire-cable suspension bridge between Tournon-sur-Rhône and Tain-l'Hermitage, designed by Marc Seguin, opens.^[3]
September 27 - The world's longest railway to be worked by steam locomotives at this date, the Stockton and Darlington Railway, opens.

^ "Scrope, George Julius Poulett". Encyclopædia Britannica Online. 2008. http://www.britannica.com/eb/article-9066399. Retrieved 2008.
^ Gwei-Djen, Lu; Needham, Joseph (1980). Celestial Lancets: a history and rationale of acupuncture and moxa. Cambridge University Press. pp. 295–7. ISBN 0-521-21513-7.
^ Drewry, Charles Stewart (1832). A Memoir of Suspension Bridges, comprising the history of their origin and progress. London: Longman, Rees, Orme, Brown, Green & Longman. pp. 110–114. http://books.google.com/books?id=Hw8LAAAAIAAJ&pg=PA110. Retrieved 2011-04-18.