March 30 – American physician and pharmacist Crawford Long administers an inhaled anesthetic (diethyl ether) to facilitate a surgical procedure (removal of a neck tumor).[4][5]
Edwin Chadwick's critical Report on an inquiry into the Sanitary Condition of the Labouring Population of Great Britain is published by the Poor Law Commission.[7]
^Hershey, David (1996). "Doctor Ward's Accidental Terrarium". The American Biology Teacher. 58 (5): 276–281. doi:10.2307/4450151. JSTOR4450151.
^Coleman, E. C. (2006). The Royal Navy in Polar Exploration, from Frobisher to Ross. Stroud: Tempus Publishing. p. 335. ISBN978-0-7524-3660-9.
^Lyman, H. M. (1881). "History of anaesthesia". Artificial anaesthesia and anaesthetics. New York: William Wood and Company. p. 6. Retrieved 2010-09-13.
^Owen, R. (1842). "Report on British Fossil Reptiles." Part II. Report of the British Association for the Advancement of Science, Plymouth, England.
^"Über das farbige Licht der Doppelsterne und einiger anderer Gestirne des Himmels – Versuch einer das Bradley'sche Theorem als integrirenden Theil in sich schliessenden allgemeineren Theorie" ("On the coloured light of the binary refracted stars and other celestial bodies – Attempt of a more general theory including Bradley's theorem as an integral part"). Abhandlungen der kaiserlichen bõhm. Gesellschaft der Wissenschaften zu Prag (Prague) V Folge 2. 25 May 1842.
^"Vacuum & Sewing Hall of Fame". Archived from the original on 12 December 2007. Retrieved 2007-12-29. See section: "Contributors to the invention of the sewing machine".
^Haines, Catharine M C; Stevens, Helen M (2001). International Women in Science: A Biographical Dictionary to 1950. Santa Barbara: ABC-CLIO. p. 66. ISBN978-1-57607-090-1.
^Bernce, Arvid (1981). Efter 1809 en Krönika i ord och bild om Finlandssvenskarna (in Swedish). Helsingfors: Bernces förlag. p. 2003. ISBN978-9-15000-408-3.
