"1923-02-14Z"^^ . "Chemist, natural philosopher" . . . . "1923Z"^^ . "Hinrichs, Gustavus Detlef"@en . . . . . . "Gustavus Detlef Hinrichs (2 December 1836 \u2013 14 February 1923) was a chemist and natural philosopher most widely known for his findings on periodic laws within the chemical elements."@en . . . . . "1836-12-02Z"^^ . . "1836Z"^^ . "Gustavus Detlef Hinrichs"@en . .