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H.S. Raper; - Public Domain
Eustache-Hyacinthe Langlois - Public Domain
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Library of the London School of Economics and Political Science -
Self, Peter.
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Galton, Francis, 1822-1911
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Bean, L. L. (Leon Leonwood), 1872-1966
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Calatrava Y Peinado, Jose Maria
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Aitken, Robert Grant, 1864-1951
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Jones, Thomas Wharton, 1808-1891
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Balabanov, Alekseĭ, 1959-2013
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Holloway, Sterling
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Eversley, G. Shaw-Lefevre (George Shaw-Lefevre), Baron, 1832-1928
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Beccaria, Cesare, marchese di, 1738-1794
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Zeller, P. C. (Philipp Christoph), 1808-1883
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Thomas, J. Parnell (John Parnell), 1895-1970
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Tuckwell, Barry
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Corbino, O. M. (Orso Mario) 1876-
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Ouida, 1839-1908
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Miyazaki, Hayao, 1941-....
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McLean, Jackie
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Ross, John, 1790-1866
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Woodsworth, J. S. (James Shaver), 1874-1942
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H.S. Raper; - Public Domain
Starling, Ernest Henry, 1866-1927
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Eustache-Hyacinthe Langlois - Public Domain
Alavoine, Jean Antoine 1778-1834
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Parny, Évariste, 1753-1814
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Petit Pierre (1832-1909) photographe - Public Domain
Becquerel, M. (Antoine César), 1788-1878
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Fox, William, 1812-1893
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User Primetime - Public Domain
Clauberg, Johann, 1622-1665
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Georg Meisenbach - Public Domain
Blatchford, Robert, 1851-1943
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Gaines, Steve
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Byers, Horace Robert, 1906-...
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Farmer, Philip José
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Beale, Calvin L. (Calvin Lunsford), 1923-2008