resting_place death_date death_place birth_place influences nationality field work_institutions birth_date signature image article_title name alma_mater
alter friedhof , bonn , germany june 11 , 1912 bonn , prussia -lrb- now germany -rrb- bonn , prussia -lrb- now germany -rrb- henry clifton sorby german geology university of leipzig may 20 , 1838 ferdinand zirkel 1838-1912 signature.jpg ferdinand zirkel 1838-1912 . jpg ferdinand zirkel
 ferdinand zirkel university of bonn
ferdinand zirkel

ferdinand zirkel -lrb- may 20 , 1838 -- june 11 , 1912 -rrb- was a german geologist and petrographer .
