"German chemist" . . . . . . . . "1910Z"^^ . . "Volhard, Jacob"@en . "Jacob Volhard (4 June 1834 \u2013 14 January 1910) was the German chemist who discovered, together with his student Hugo Erdmann, the Volhard-Erdmann cyclization reaction. He was also responsible for the improvement of the Hell-Volhard-Zelinsky halogenation."@en . . . "1910-01-14Z"^^ . . . . . "1834Z"^^ . . "1834-06-04Z"^^ . . "Jacob Volhard"@en . .