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Aimé Dupont - Public Domain
anonymous - Public Domain
Eugène Pirou - Public Domain
USA - Public Domain
Public Domain
Westinghouse Electric -
Małgorzata Skibińska - CC BY-SA 4.0
Roman Winterleitner - CC BY-SA 4.0
user at project - Public Domain
unknown - Public Domain
Perry, William Stevens - Public Domain
Medical Research Council - CC BY 4.0
Alephalpha -
Marcel Baschet - Public Domain
George Parker, after J. Moore - Public Domain
Jacob G. Ullery - Public Domain
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Aimé Dupont - Public Domain
Rehan, Ada, 1857-1916
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anonymous - Public Domain
Courcelle, Francisco, 1705-1778
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Eugène Pirou - Public Domain
Fouqué, F. (Ferdinand), 1828-1904
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USA - Public Domain
Lê, Đức Thọ, 1911-1990
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Public Domain
Dodge, Augustus C. (Augustus Caesar), 1812-1883
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Westinghouse Electric -
Daché, Lily
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Popova, Li︠u︡bovʹ Sergeevna, 1889-1924
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Astley, John Dugdale, Sir, 1828-1894
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Laughlin, Irwin B. (Irwin Boyle), 1871-1941
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Małgorzata Skibińska - CC BY-SA 4.0
McKennitt, Loreena, 1957-...
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Morritt, John B. S. (John Bacon Sawrey), 1772?-1843
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Roman Winterleitner - CC BY-SA 4.0
Fasching, Bernd
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Fréron, Stanislas, 1754-1802
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user at project - Public Domain
Sim, Dave, 1956-....
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Kessler, J. C. (Joseph Christoph), 1800-1872
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unknown - Public Domain
Hoke, Robert F. (Robert Frederick)
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Perry, William Stevens - Public Domain
Doane, George Washington, 1799-1859
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Beach, Thomas, 1738-1806
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Lurton, Horace H. (Horace Harmon), 1844-1914
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Medical Research Council - CC BY 4.0
Medvedev, Zhores A., 1925-
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Alephalpha -
Khan, Ali Akbar, 1922-2009
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Marcel Baschet - Public Domain
Broglie, Maurice de, 1875-1960
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Hills, Arnold Frank, 1857-1927
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George Parker, after J. Moore - Public Domain
Monk, James Henry, 1784-1856
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Bosanquet, Day Hort, Sir, 1843-1923
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Anderssen, Karl Ernst Adolf, 1818-1879
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Smith, Margaret Bayard, 1778-1844
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Blackburn, Robert Hamilton, 1920-
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Rathbone, Ouida Bergere, 1887-1974
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Jacob G. Ullery - Public Domain
Langdon, Chauncy, 1763-1830