See also: 1893 in science, other events of 1894, 1895 in science and the list of years in science.
Chemistry Argon discovered by Lord Rayleigh and Sir William Ramsay. Medicine Patrick Manson develops the thesis that malaria is spread by mosquitoes Awards Copley Medal: Edward Frankland Wollaston Medal for Geology: Karl von Zittel Births February 11 - Isaac Kolthooff, chemist. Deaths November 26 - Pafnuty Chebyshev, mathematician (* 1821) Hermann von Helmholtz, physicist (* 1821)
