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Keywords: Bismuth symbol by Torbern Bergman.png Alchemical symbol Torbern Bergman used for the element Bismuth in his 1775 Dissertation on Elective Affinities Dissertation on Elective Affinities page 385 Chemical Signs explained http //books google co uk/books id gP4JAAAAIAAJ and http //www meta-synthesis com/webbook/35_pt/pt_database php Button pre-1900+Formulations 1775 Torbern Bergman other versions PD-old-100 Alchemical symbols Bismuth |