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N B1 The Notebooks of Leonardo Da Vinci — Complete The Notebooks of Leonardo Da Vinci — Complete da Vinci Leonardo B B1 The book of wonders : gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer... The book of wonders : gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer... S B1 Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. George Francis Atkinson O B2 On Growth and Form On Growth and Form D'Arcy Wentworth Thompson L B1 Life and Letters of Charles Darwin — Volume 1 Life and Letters of Charles Darwin — Volume 1 Charles Darwin O B2 The Origin of Species by Means of Natural Selection The Origin of Species by Means of Natural Selection Charles Darwin P B1 Pharmacographia Pharmacographia Friedrich A. Flückiger and Daniel Hanbury H B1 Herbal simples approved for modern uses of cure Herbal simples approved for modern uses of cure William Thomas Fernie V B2 Vegetable Teratology Vegetable Teratology Maxwell T. Masters O B2 On the Origin of Species By Means of Natural Selection On the Origin of Species By Means of Natural Selection Charles Darwin E B1 Explanation of Terms Used in Entomology Explanation of Terms Used in Entomology John Bernhard Smith M B1 More Letters of Charles Darwin — Volume 1 More Letters of Charles Darwin — Volume 1 Charles Darwin E B1 The elements of bacteriological technique : a laboratory guide for medical, dental, and technical students The elements of bacteriological technique : a laboratory guide for medical, dental, and technical students J. W. H. Eyre V B1 The Voyage of the Beagle The Voyage of the Beagle Charles Darwin E B2 The Expression of the Emotions in Man and Animals The Expression of the Emotions in Man and Animals Charles Darwin D B2 Darwin, and After Darwin, Volumes 1 and 3 Darwin, and After Darwin, Volumes 1 and 3 George John Romanes O B2 On the Origin of Species by Means of Natural Selection On the Origin of Species by Means of Natural Selection Charles Darwin A B1 The Animal Parasites of Man The Animal Parasites of Man Harold Benjamin Fantham, J. W. W. Stephens, Fred. V. Theobald, and Max Braun O B1 Origin of Cultivated Plants Origin of Cultivated Plants Alphonse de Candolle L B1 Letters of Asa Gray; Vol. 2 Letters of Asa Gray; Vol. 2 Asa Gray D B1 The Descent of Man, and Selection in Relation to Sex The Descent of Man, and Selection in Relation to Sex Charles Darwin N B1 The Natural History of Pliny, Volume 5 (of 6) The Natural History of Pliny, Volume 5 (of 6) the Elder Pliny N B1 The Natural History of Pliny, Volume 3 (of 6) The Natural History of Pliny, Volume 3 (of 6) the Elder Pliny I Identification of the Larger Fungi Identification of the Larger Fungi Roy Watling C The Common Spiders of the United States The Common Spiders of the United States J. H. Emerton