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C B1 The Complete Herbal The Complete Herbal Nicholas Culpeper R B1 Reise in die Aequinoctial-Gegenden des neuen Continents. Band 2. (German) Reise in die Aequinoctial-Gegenden des neuen Continents. Band 2. (German) Alexander von Humboldt O B2 The Origin of Species by Means of Natural Selection The Origin of Species by Means of Natural Selection Charles Darwin M B2 Man and Nature; Or, Physical Geography as Modified by Human Action Man and Nature; Or, Physical Geography as Modified by Human Action George P. Marsh N B1 The Natural History of Pliny, Volume 6 (of 6) The Natural History of Pliny, Volume 6 (of 6) the Elder Pliny G C1 Georgicon (Latin) Georgicon (Latin) Virgil W B1 Walking Walking Henry David Thoreau V B2 Village Improvements and Farm Villages Village Improvements and Farm Villages George E. Waring C B2 Cosmos: A Sketch of the Physical Description of the Universe, Vol. 1 Cosmos: A Sketch of the Physical Description of the Universe, Vol. 1 Alexander von Humboldt W B1 Wealth of the World's Waste Places and Oceania Wealth of the World's Waste Places and Oceania Jewett C. Gilson I B2 Influences of Geographic Environment Influences of Geographic Environment Ellen Churchill Semple C B1 Cape Cod Cape Cod Henry David Thoreau