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Environmental Protection Agency of U.S. - Public Domain
Not specified -
Abernethy - Public Domain
Woshidaixiao - CC BY-SA 3.0
Sherwin Carlquist - CC BY-SA 3.0
Bull-Doser - Public Domain
SRI International - CC BY-SA 3.0
Jacobs, Konrad - CC BY-SA 2.0
Foto: Silvio Tanaka - CC BY-SA 2.0
anonymous -
unknown - Public Domain
פרס א.מ.ת - CC BY-SA 3.0
Kippelboy - CC BY-SA 3.0
«Marylandstater - Public Domain
zh-hant -
Colmer, Montagu, and Charles Erskine Scott Wood - Public Domain
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Environmental Protection Agency of U.S. - Public Domain
Burford, Anne M. (Anne McGill), 1942-
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Olson, Culbert L. (Culbert Levy), 1876-1962
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Tille, Alexander, 1866-1912
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Not specified -
Duncan, Patrick, 1870-1943
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Hawkins, John J., 1855-1935
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Heym, Georg, 1887-1912
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Shubert, Sam S., 1875-1905
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Shaw, Wini 1900?-....
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Abernethy - Public Domain
Hall, John, 1829-1898
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Burney, Fanny, 1752-1840
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Woshidaixiao - CC BY-SA 3.0
Ayala, Francisco José, 1934-
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Sherwin Carlquist - CC BY-SA 3.0
Carlquist, Sherwin John, 1930-....
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Bull-Doser - Public Domain
Haimovitz, Matt, 1970-....
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De Paris, Sidney
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MacRae, William, 1834-1882
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SRI International - CC BY-SA 3.0
Gibson, Weldon B., 1917-
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Jacobs, Konrad - CC BY-SA 2.0
Shannon, Claude Elwood, 1916-2001
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Foto: Silvio Tanaka - CC BY-SA 2.0
Evora, Cesaria
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anonymous -
Kraus, Oskar, 1872-1942
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Seidman, Lewis William, 1921-2009
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unknown - Public Domain
Joy, James F. (James Frederick), 1810-1896
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Lister, Timothy R.
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פרס א.מ.ת - CC BY-SA 3.0
Talmi, Igal, 1925-....
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unknown - Public Domain
Pemán, José María, 1897-1981
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Kippelboy - CC BY-SA 3.0
Muntadas, 1942-....
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«Marylandstater - Public Domain
Robinson, Brooks, 1937-
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Sigismund III, King of Poland and Sweden, 1566-1632
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zh-hant -
Huang, Jie, 1902-
Image from Wikimedia Commons
Colmer, Montagu, and Charles Erskine Scott Wood - Public Domain
Rand, John L. (John Langdon), 1861-1942
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Baldwin, Frank Dwight, 1842-1923