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Josef Donnerer, Pharmakologisches Institut Graz - CC BY-SA 3.0
Gaddum, J. H. (John Henry), 1900-1965
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Keate, George, 1729-1797
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Schreyvogel, Charles, 1861-1912
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FFVO - Public Domain
Rosse, Herman, 1887-1965
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John Raphael Smith Engraver: :en:George Thomas Doo - Public Domain
Reynolds, Frederick, 1764-1841
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Bonald, Louis-Gabriel-Ambroise, vicomte de, 1754-1840
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Polanyi, Michael, 1891-1976
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Bostwick, Arthur E. (Arthur Elmore), 1860-1942
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Labadie, Jo, 1850-1933
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Lebourg, Albert, 1849-1928
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Matthew, William Diller, 1871-1930
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Duff, Thomas
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Kjell Bloch Sandved - Public Domain
Calderón, Cleofé E.
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Tovar, Lupita
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Collodi, Carlo, 1826-1890
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Boeselager, Philipp Leopold Antonius Hubertus, Freiherr von, 1917-2008
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Keith Allison - CC BY-SA 2.0
Reed, Ed, 1978-
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Burge, Hubert Murray, 1862-1925
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Daly, Dominick, Sir, 1798-1868
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Dorothy Darnell - CC BY-SA 4.0
Daymond, Emily Rosa, 1866-1949
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Gilbert, John, 1897-1936
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Nobel Foundation - Public Domain
Raman, 1888-1970
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Le Maistre de Sacy, Isaac-Louis, 1613-1684
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Zhu, Xi, 1130-1200
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Ilustración de Historia general de España por Modesto Lafuente. - Public Domain
Lafuente, Modesto, 1806-1866
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Zurada, Jacek M.
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Lowell, Josephine Shaw, 1843-1905
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Elliott & Fry - Public Domain
Noel, Baptist Wriothesley, 1798-1873
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Magnus, Gustav, 1802-1870
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Schopenhauer, Arthur, 1788-1860