"1844Z"^^ . . "1930Z"^^ . "John Howard Appleton"@en . "1930-02-18Z"^^ . . "Appleton, John Howard"@en . . . "John Howard Appleton (February 3, 1844 \u2013 February 18, 1930) was an American chemist."@en . "1844-02-03Z"^^ . . "American chemist" . .