1798 in science

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





  • Lagrange publishes his Résolution des équations numériques, including the method of approximating to the real roots of an equation by means of continued fractions.


  • Edward Jenner publishes An Inquiry into the Causes and Effects of the Variolae Vaccinae.
  • 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.[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.








  1. ^ Ogilvie, Marilyn Bailey (1986). Women in Science: Antiquity through the Nineteenth Century. Cambridge, Mass.: MIT Press. pp. 97–98. ISBN 0-262-65038-X. 
  2. ^ 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)
  3. ^ 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. 
  4. ^ Burke, James (1985). The Day the Universe Changed. London: BBC. p. 207. ISBN 0-563-20192-4. 
  5. ^ Burnett, John (2004). "Tilloch, Alexander (1759–1825)". Oxford Dictionary of National Biography. Oxford University Press. Retrieved 2010-02-17.