Ernst Haeckel's Art Forms in Nature : A Visual Masterpiece of the Natural World
Ernst Haeckel
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The Evolution of Man : A Popular Exposition, Principal Points of Human Ontogeny and Phylogeny
Ernst Haeckel
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Monism as Connecting Religion and Science : The Confession of Faith of a Man of Science
Ernst Haeckel
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The Evolution of Man : A Popular Scientific Study of the Principal Points of Human Ontogeny and Phylogeny
Ernst Haeckel
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The Riddle of the Universe : At the Close of the Nineteenth Century
Ernst Haeckel
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