Editing 1878 in science (section)

==Chemistry==
* The [[rare earth element]] [[holmium]] is identified in [[erbium]] by [[Marc Delafontaine]] and [[Jacques-Louis Soret]] in Geneva<ref>{{cite journal|title=Sur les spectres d'absorption ultra-violets des terres de la gadolinite|first=Jacques-Louis|last=Soret|journal=[[Comptes rendus de l'Académie des sciences]]|volume=87|page=1062|year=1878|url=https://gallica.bnf.fr/ark:/12148/bpt6k3043m/f1124.table}}</ref> and by [[Per Teodor Cleve]] in Sweden.<ref>{{cite journal|title=Sur deux nouveaux éléments dans l'erbine|first=Per Teodor|last=Cleve|journal=Comptes Rendus de l'Académie des Sciences|volume=89|page=478|year=1879|url=https://gallica.bnf.fr/ark:/12148/bpt6k3046j/f499.table}}</ref>