Books in Browsing: Science - General (sorted by popularity)
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A Book of Natural History 550 downloads
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Opportunities in Aviation Arthur Sweetser and Gordon Lamont 548 downloads
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Principles of Geology Sir Charles Lyell 547 downloads
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The Mathematical Theory of Relativity Sir Arthur Stanley Eddington 547 downloads
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Buchanan's Journal of Man, August 1887 545 downloads
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Food Adulteration and Its Detection Jesse P. Battershall 543 downloads
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Foods and Their Adulteration Harvey Washington Wiley 541 downloads
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Space—Time—Matter Hermann Weyl 539 downloads
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The International Monthly, Volume 3, No. 2, May, 1851 Various 539 downloads
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The history of steam navigation John Kennedy 537 downloads
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The Natural History of Pliny, Volume 6 (of 6) the Elder Pliny 535 downloads
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Die Welt auf Schienen (German) Artur Fürst 532 downloads
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Film: Set of 4 Atomic Bomb Test Films 531 downloads
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The Principles of Biology, Volume 1 (of 2) Herbert Spencer 530 downloads
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The First Airplane Diesel Engine: Packard Model DR-980 of 1928 Robert B. Meyer 529 downloads
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Recuerdos de mi vida (tomo 2 de 2) (Spanish) Santiago Ramón y Cajal 527 downloads
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A History of Mathematics Florian Cajori 526 downloads
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Occult Chemistry: Clairvoyant Observations on the Chemical Elements Annie Besant and C. W. Leadbeater 526 downloads
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Spherical Trigonometry: For the Use of Colleges and Schools I. Todhunter 519 downloads
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A Field Book of the Stars William Tyler Olcott 514 downloads
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Views of nature: or Contemplations on the sublime phenomena of creation Alexander von Humboldt 514 downloads
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Our Vanishing Wild Life: Its Extermination and Preservation William T. Hornaday 514 downloads
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Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage Round the World of H.M.S. Beagle Under the Command of Captain Fitz Roy, R.N. Charles Darwin 513 downloads
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The Progress of Invention in the Nineteenth Century. Edward W. Byrn 510 downloads
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Inventions in the Century William Henry Doolittle 507 downloads