. . "1895Z"^^ . . . "1813-02-12Z"^^ . . . . "James Dwight Dana (February 12, 1813 \u2013 April 14, 1895) was an American geologist, mineralogist, volcanologist, and zoologist. He made pioneering studies of mountain-building, volcanic activity, and the origin and structure of continents and oceans around the world."@en . "1895-04-14Z"^^ . "United States geologist, mineralogist and zoologist" . . "James Dwight Dana"@en . "1813Z"^^ . . "Dana, James Dwight"@en .