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Lehrbuch der Botanik für Hochschulen (German)
A. F. W. Schimper, Eduard Strasburger, Fritz Noll, and H. Schenck
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New Zealand Moths and Butterflies (Macro-Lepidoptera)
G. V. Hudson
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The Mechanism of Life
Stéphane Leduc
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Birds of the Indian Hills
Douglas Dewar
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The Descent of Man and Selection in Relation to Sex, Vol. I
Charles Darwin
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Insect life: Souvenirs of a naturalist
Jean-Henri Fabre
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Darwin and Modern Science
A. C. Seward
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Fungi: Their Nature and Uses
M. C. Cooke
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The Kallikak Family: A Study in the Heredity of Feeble-Mindedness
Henry Herbert Goddard
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Darwinism (1889)
Alfred Russel Wallace
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The Elements of Botany, For Beginners and For Schools
Asa Gray
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De Wereld vóór de schepping van den mensch (Dutch)
Camille Flammarion
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The Life-Story of Insects
George H. Carpenter
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The Variation of Animals and Plants Under Domestication, Vol. I.
Charles Darwin
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A Synopsis of the North American Lagomorpha
E. Raymond Hall
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Lamarck, the Founder of Evolution: His Life and Work
A. S. Packard
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Response in the Living and Non-Living
Jagadis Chandra Bose
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Natural History of the Brush Mouse (Peromyscus boylii) in Kansas With Description of a New Subspecies
Charles Alan Long
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The Evolution Theory, Vol. 1 of 2
August Weismann
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The Power of Movement in Plants
Charles Darwin and Sir Francis Darwin
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Special Report on Diseases of the Horse
United States. Bureau of Animal Industry, Leonard Pearson, Rush Shippen Huidekoper, Charles B. Michener, and W. H. Harbaugh
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Animals of the Past
Frederic A. Lucas
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Studies in Spermatogenesis (Part 1 of 2)
N. M. Stevens
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Text Book of Biology, Part 1: Vertebrata
H. G. Wells
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Botany: The Science of Plant Life
Norman Taylor
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