Books in Category: Science - Earth/Agricultural/Farming (sorted by popularity)
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Pioneer Saturn Encounter
United States. National Aeronautics and Space Administration
423 downloads
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Madam How and Lady Why; Or, First Lessons in Earth Lore for Children
Charles Kingsley
419 downloads
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Astronomy of To-day: A Popular Introduction in Non-Technical Language
Cecil Goodrich Julius Dolmage
419 downloads
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Practical Angora Goat Raising
416 downloads
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The Book of Husbandry
Anthony Fitzherbert
416 downloads
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My experiments with volcanoes
Thomas Augustus Jaggar
413 downloads
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Guide to Rocks and Minerals of Illinois
Illinois State Geological Survey
412 downloads
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Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia)
Ernst Haeckel
412 downloads
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Vestiges of the Natural History of Creation
Robert Chambers
410 downloads
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Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1
Alexander von Humboldt and Aimé Bonpland
410 downloads
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Guidebook of Palo Duro Canyon
West Texas State University. Geological Society
408 downloads
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Prairie, Peak, and Plateau: A Guide to the Geology of Colorado
John Chronic and Halka Chronic
407 downloads
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El Mar (Spanish)
Jules Michelet
406 downloads
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The Land of Midian (Revisited) — Volume 1
Sir Richard Francis Burton
404 downloads
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The Philippine Agricultural Review. Vol. VIII, First Quarter, 1915 No. 1
Various
399 downloads
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Useful Knowledge: Volume 1. Minerals
William Bingley
398 downloads
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Coral Reefs
Charles Darwin
395 downloads
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Man and the Glacial Period
G. Frederick Wright
395 downloads
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The music of the spheres : A nature lover's astronomy
Florence Armstrong Grondal
394 downloads
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Gem-Stones and Their Distinctive Characters
George Frederick Herbert Smith
392 downloads
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A start in life. A journey across America. Fruit farming in California
C. F. Dowsett
391 downloads
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The A B C of Mining: A Handbook for Prospectors
Charles A. Bramble
391 downloads
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Scientific American Supplement, No. 365, December 30, 1882
Various
390 downloads
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The Formation of Vegetable Mould Through the Action of Worms
Charles Darwin
389 downloads
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The Medals of Creation, Volumes 1 and 2
Gideon Algernon Mantell
386 downloads