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Species and Varieties, Their Origin by Mutation
Hugo de Vries
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De l'origine des espèces (French)
Charles Darwin
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Freedom in Science and Teaching.
Ernst Haeckel
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More Letters of Charles Darwin — Volume 1
Charles Darwin
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Darwin, and After Darwin, Volume 2 of 3
George John Romanes
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Darwiniana; Essays and Reviews Pertaining to Darwinism
Asa Gray
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Facts and Arguments for Darwin
Fritz Müller
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The Making of Species
Douglas Dewar and Frank Finn
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The illustrated story of evolution
Marshall J. Gauvin
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Darwin, and After Darwin, Volumes 1 and 3
George John Romanes
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A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation'
Francis Bowen
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Canterbury Pieces
Samuel Butler
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The Story of Evolution
Joseph McCabe
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Degeneration: A Chapter in Darwinism
Sir E. Ray Lankester
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Evolution: Its nature, its evidence, and its relation to religious thought
Joseph LeConte
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A Critical Examination of the Position of Mr. Darwin's Work, "On the Origin of Species," in Relation to the Complete Theory of the Causes of the Phenomena of Organic Nature
Thomas Henry Huxley
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The Origin of Species
Thomas Henry Huxley
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Problems of Genetics
William Bateson
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Essays Upon Heredity and Kindred Biological Problems
August Weismann
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Note on the Resemblances and Differences in the Structure and the Development of the Brain in Man and Apes
Charles Darwin and Thomas Henry Huxley
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Lay Sermons, Addresses and Reviews
Thomas Henry Huxley
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Darwinism stated by Darwin himself
Charles Darwin
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Darwiniana : Essays — Volume 02
Thomas Henry Huxley
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The Conditions of Existence as Affecting the Perpetuation of Living Beings
Thomas Henry Huxley
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Criticisms on "The Origin of Species"
Thomas Henry Huxley
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