Home Scientists Ferdinand Zirkel Ferdinand Zirkel Scientist Ferdinand Zirkel (May 20, 1838 – June 11, 1912) was a German geologist and petrographer. Personal facts Birth dateMay 20, 1838 Birth placeBonn NationalityGermany Date of deathJune 11, 1912 EducationUniversity of Bonn facebook tumblr linkedin twitter reddit google+ Search Scientist Field of studyGeology influenced byHenry Clifton Sorby Topical connections Albert of SaxonyRoyalty Albert Prince ConsortRoyalty Adolphe-Théodore BrongniartScientist Adam SedgwickScientist August Detlev Christian TwestenScientist Adolf EnglerScientist Ahmet SağlamFootball player Adolph StrümpellScientist Abraham Gotthelf KästnerScientist Abraham Gottlob WernerScientist Élie MetchnikoffScientist Élie CartanScientist Ferdinand Zirkel on Wikipedia Ferdinand Zirkel External resources http://books.google.com/books?id=pNRBAAAAIAAJ