1798 in science

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The year 1798 in science and technology involved some significant events.

Astronomy

The element beryllium is discovered by Louis Vauquelin as the oxide in beryl and in emeralds. Friedrich Wöhler and A. A. Bussy independently isolate the metal in 1828 by reacting potassium and beryllium chloride.

Lagrange publishes his Résolution des équations numériques, including the method of approximating to the real roots of an equation by means of continued fractions.
Carl Friedrich Gauss (born 1777) completes his magnum opus, Disquisitiones Arithmeticae (published 1801).

Edward Jenner publishes An Inquiry into the Causes and Effects of the Variolæ Vaccinæ, a disease discovered in some of the western counties of England, particularly Gloucestershire, and known by the name of the Cow Pox, describing the smallpox vaccine, in London.
Charles Bell publishes A System of Dissection Explaining the Anatomy of the Human Body in collaboration with his brother John.^[2]
Alexander Crichton publishes An inquiry into the nature and origin of mental derangement; comprehending a concise system of the physiology and pathology of the human mind and a history of the passions and their effects, including a description of a condition resembling the inattentive subtype of attention deficit hyperactivity disorder.
John Dalton publishes "Extraordinary Facts Relating to the Vision of Colours", describing colour blindness for the first time in print.^[3]
Philippe Pinel publishes Nosographie philosophique, ou méthode de l'analyse appliquée à la médecine, emphasising the importance of nosology (classification of diseases) to medicine. It goes through six editions in the next ten years.^[4]
Samuel Thomas von Sömmerring publishes Tabula sceleti feminini in Frankfurt am Main, the first accurate representation of the female skeleton.

The Philosophical Magazine is initiated by Alexander Tilloch to cover the field of natural philosophy; it will still be published more than two centuries later.^[5]

March 25 – Christoph Gudermann, German mathematician (died 1852)
April 3 – Charles Wilkes, American navigator (died 1877)
July 14 - François Mêlier, French physician (died 1866)^[7]
August 17 – Thomas Hodgkin, English physician (died 1866)
September 11 – Franz Ernst Neumann, German mineralogist, physicist and mathematician (died 1895)
September 19 – Caesar Hawkins, English surgeon (died 1884)
November 4 – Karl Kreil, Austrian astronomer (died 1862)
December 28 – Thomas Henderson, Scottish astronomer (died 1844)

^ Ogilvie, Marilyn Bailey (1986). Women in Science: Antiquity through the Nineteenth Century. Cambridge, Massachusetts: MIT Press. pp. 97–98. ISBN 0-262-65038-X.
^ Jacyna, L. S. (2004). "Bell, Sir Charles (1774–1842)". Oxford Dictionary of National Biography. Oxford University Press. doi:10.1093/ref:odnb/1999. Retrieved 2011-04-06. (subscription or UK public library membership required)
^ Dalton, J. (1798). "Extraordinary facts relating to the vision of colours; with observations". Memoirs of the Literary and Philosophical Society of Manchester. 5: 28–45. The original lecture was delivered in 1794.
^ Burke, James (1985). The Day the Universe Changed. London: BBC. p. 207. ISBN 0-563-20192-4.
^ Burnett, John (2004). "Tilloch, Alexander (1759–1825)". Oxford Dictionary of National Biography. Oxford University Press. Retrieved 2010-02-17.
^ "Copley Medal | British scientific award". Encyclopedia Britannica. Retrieved 21 July 2020.
^ Jules Bergeron, Alexandre Wauthier. "François Mêlier". cths.fr (in French). Comité des travaux historiques et scientifiques. Retrieved 2020-10-27.
^ "Luigi Galvani, Italian physician and physicist". Encyclopædia Britannica. Retrieved 2019-03-21.