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Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage Round the World of H.M.S. Beagle Under the Command of Captain Fitz Roy, R.N.
Charles Darwin
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Zoonomia; Or, the Laws of Organic Life, Vol. I
Erasmus Darwin
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More Letters of Charles Darwin — Volume 2
Charles Darwin
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Sex-linked Inheritance in Drosophila
Thomas Hunt Morgan and Calvin B. Bridges
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Ways of Nature
John Burroughs
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The Descent of Man and Selection in Relation to Sex, Vol. I
Charles Darwin
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The Life of Crustacea
W. T. Calman
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The Minds and Manners of Wild Animals: A Book of Personal Observations
William T. Hornaday
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Metabolic Adaptation to Climate and Distribution of the Raccoon Procyon Lotor and Other Procyonidae
John N. Mugaas, John Seidensticker, and Kathleen P. Mahlke-Johnson
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An Elementary Study of Insects
Leonard Haseman
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Lamarck, the Founder of Evolution: His Life and Work
A. S. Packard
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Animal Parasites and Messmates
P. J. van Beneden
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The Antiquity of Man
Sir Charles Lyell
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What is Darwinism?
Charles Hodge
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Ideen zu einer Physiognomik der Gewächse (German)
Alexander von Humboldt
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North American Recent Soft-Shelled Turtles (Family Trionychidae)
Robert G. Webb
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The History of Creation, Vol. 1 (of 2)
Ernst Haeckel
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Genera of Leptodactylid Frogs in México
John D. Lynch
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Evolution, Old & New
Samuel Butler
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The Manual of the Botany of the Northern United States
Asa Gray
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Life Movements in Plants, Volume I
Jagadis Chandra Bose
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Hints towards the formation of a more comprehensive theory of life.
Samuel Taylor Coleridge
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Mammals Obtained by Dr. Curt von Wedel from the Barrier Beach of Tamaulipas, Mexico
E. Raymond Hall
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The History of Creation, Vol. 2 (of 2)
Ernst Haeckel
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Fungi: Their Nature and Uses
M. C. Cooke
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