Books in Biology (sorted by popularity)
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Displaying results 1–25 | Next
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On the Origin of Species By Means of Natural Selection Charles Darwin 7295 downloads
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The Origin of Species by Means of Natural Selection Charles Darwin 2058 downloads
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On the Origin of Species by Means of Natural Selection Charles Darwin 810 downloads
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Explanation of Terms Used in Entomology John Bernhard Smith 739 downloads
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Our Vanishing Wild Life: Its Extermination and Preservation William T. Hornaday 622 downloads
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An Elementary Study of Insects Leonard Haseman 492 downloads
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The Human Side of Animals Royal Dixon 459 downloads
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Zoonomia; Or, the Laws of Organic Life, Vol. I Erasmus Darwin 452 downloads
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My Studio Neighbors W. Hamilton Gibson 358 downloads
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Anecdotes of the Habits and Instinct of Animals Mrs. R. Lee 338 downloads
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On the Origin of Species by Means of Natural Selection Charles Darwin 319 downloads
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Birds of the Indian Hills Douglas Dewar 308 downloads
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The Minds and Manners of Wild Animals: A Book of Personal Observations William T. Hornaday 306 downloads
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Form and Function: A Contribution to the History of Animal Morphology E. S. Russell 297 downloads
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The Life-Story of Insects George H. Carpenter 297 downloads
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Social Life in the Insect World Jean-Henri Fabre 282 downloads
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The Variation of Animals and Plants under Domestication Charles Darwin 280 downloads
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American Addresses, with a Lecture on the Study of Biology Thomas Henry Huxley 277 downloads
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Birds in Town & Village W. H. Hudson 276 downloads
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Ducks at a Distance: A Waterfowl Identification Guide Bob Hines 270 downloads
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The Foundations of the Origin of Species Charles Darwin 267 downloads
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What is Darwinism? Charles Hodge 263 downloads
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Lamarck, the Founder of Evolution: His Life and Work A. S. Packard 259 downloads
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Evolution, Old & New Samuel Butler 258 downloads
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Our Common Insects A. S. Packard 257 downloads
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Displaying results 1–25 | Next