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CHVentures - CC BY-SA 3.0
R. Baumbach - Public Domain
William Faithorne - Public Domain
Public Domain
Cactus And Succulent Society Of America - CC BY-SA 2.5
United States Office of Humanities - Public Domain
Unknown - Public Domain
William James Topley - Public Domain
tom.beetz - CC BY 2.0
S. C. Smith - Public Domain
Project Gutenberg. - Public Domain
Nightscream -
Eva Rinaldi - CC BY-SA 2.0
Field Artillery Central Officers Training School Association, authors. Knickerbocker Press (New York, NY), publisher. - Public Domain
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CHVentures - CC BY-SA 3.0
Renaldo, Duncan
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Rhodes, Daniel, 1911-1989
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R. Baumbach - Public Domain
Baumbach, Rudolf, 1840-1905
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Sanger, Frederick, 1918-2013
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William Faithorne - Public Domain
Glanvill, Joseph, 1636-1680
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Yearsley, Ann, 1753-1806
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Hellens, Franz
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Cesnola, Luigi Palma di 1832-1904
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Hays, Wayne L. (Wayne Levere), 1911-1989
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Public Domain
Hartness, James, 1861-1934
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Cactus And Succulent Society Of America - CC BY-SA 2.5
Pittier, Henri, 1857-1950
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United States Office of Humanities - Public Domain
Leach, James, 1942-
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Ascher, Kenny
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Steele, Frederick, 1819-1868
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Britto, Romero, 1963-
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Unknown - Public Domain
Quiroga, Horácio, 1878-1937
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Thomson, Virgil
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Stockton, Robert Field, 1795-1866
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William James Topley - Public Domain
Mackenzie, William, Sir, 1849-1923
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tom.beetz - CC BY 2.0
Hall, Jim, 1930-2013
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S. C. Smith - Public Domain
Hunter, Joseph, 1783-1861
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Bernabei, Ercole, 1622-1687
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Robinson, Bill, 1878-1949
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Project Gutenberg. - Public Domain
Cooke, Bates, 1787-1841
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Sargant, William Walters
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Nightscream -
Thompson, Maggie
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Eva Rinaldi - CC BY-SA 2.0
Batchelor, John Calvin
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Field Artillery Central Officers Training School Association, authors. Knickerbocker Press (New York, NY), publisher. - Public Domain
Goodyear, A. Conger (Anson Conger), 1877-1964
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Stone, Frederick, 1820-1899
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Kidd, Benjamin, 1858-1916