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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... O B2 On Growth and Form On Growth and Form D'Arcy Wentworth Thompson O B2 The Origin of Species by Means of Natural Selection The Origin of Species by Means of Natural Selection Charles Darwin O B2 On the Origin of Species By Means of Natural Selection On the Origin of Species By Means of Natural Selection Charles Darwin L B1 Life and Letters of Charles Darwin — Volume 1 Life and Letters of Charles Darwin — Volume 1 Charles Darwin V B2 Vegetable Teratology Vegetable Teratology Maxwell T. Masters M B1 The Medicinal Plants of the Philippines The Medicinal Plants of the Philippines T. H. Pardo de Tavera V B1 The Voyage of the Beagle The Voyage of the Beagle Charles Darwin M B1 More Letters of Charles Darwin — Volume 1 More Letters of Charles Darwin — Volume 1 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 L B2 Lehrbuch der Botanik für Hochschulen (German) Lehrbuch der Botanik für Hochschulen (German) A. F. W. Schimper, Eduard Strasburger, Fritz Noll, and H. Schenck O B1 Origin of Cultivated Plants Origin of Cultivated Plants Alphonse de Candolle I B1 An Introduction to Entomology: Vol. 3 An Introduction to Entomology: Vol. 3 William Kirby and William Spence 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 D B1 The Descent of Man, and Selection in Relation to Sex The Descent of Man, and Selection in Relation to Sex Charles Darwin F B1 Fossil plants, Vol. 2 : A text-book for students of botany and geology Fossil plants, Vol. 2 : A text-book for students of botany and geology A. C. Seward R B1 Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index Ernst Haeckel M C1 Micrographia Micrographia Robert Hooke R B1 Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) Ernst Haeckel G B1 Grundzüge der Paläontologie (Paläozoologie). 1. Abteilung: Invertebrata. (German) Grundzüge der Paläontologie (Paläozoologie). 1. Abteilung: Invertebrata. (German) Karl Alfred von Zittel M B1 The Manual of the Botany of the Northern United States The Manual of the Botany of the Northern United States Asa Gray