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My grandfather's son : a memoir
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The immeasurable world : journeys in desert places
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Tip of the iceberg : my 3,000-mile journey around wild Alaska, the last great American frontier
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Silvopasture : a guide to managing grazing animals, forage crops, and trees in a temperate farm ecosystem
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The bastard brigade : the true story of the renegade scientists and spies who sabotaged the Nazi atomic bomb
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The mosquito : a human history of our deadliest predator
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The positive dog : a story about the power of positivity
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Ten innings at Wrigley : the wildest ballgame ever, with baseball on the brink
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Food rules : an eater's manual
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The trouble with gravity : solving the mystery beneath our feet
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Charles Darwin's On the origin of species
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I'm staying with my boys : the heroic life of Sgt. John Basilone, USMC
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The outlaw ocean : journeys across the last untamed frontier
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The weather machine : a journey inside the forecast
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Underland : a deep time journey
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Underground : a human history of the worlds beneath our feet
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The railroad that never was: Vanderbilt, Morgan and the Southern Pennsylvania Railroad
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Hawking
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Beyond the map : unruly enclaves, ghostly places, emerging lands and our search for new utopias
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Buzz, sting, bite : why we need insects
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Lands of lost borders : a journey on the Silk Road
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Searching for black Confederates : the Civil War's most persistent myth
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Village of secrets : defying the Nazis in Vichy France
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Landmarks
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The making of Pennsylvania; an analysis of the elements of the population and the formative influences that created one of the greatest of the American States
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If America were a village : a book about the people of the United States
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Sixth census of the United States : Pennsylvania, 1840
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Tenth census of the United States : Lancaster County, Pa., 1880
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Third census of the United States : Pennsylvania, 1810
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Second census of the United States : Pennsylvania, 1800
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Fourth census of the United States : Pennsylvania, 1820
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Fifth census of the United States : Pennsylvania, 1830
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Thirteenth census of the United States taken in the year 1910
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Seventh census of the United States : Blair County, Pa., 1850
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28 weeks later
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Our patchwork nation : the surprising truth about the "real" America
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A century of population growth : from the first census of the United States to the twelfth, 1790-1900
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Human footprint : everything you will eat, use, wear, buy, and throw out in your lifetime
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If the world were a village : a book about the world's people
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I am legend
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Eighth census of the United States : Berks County, Pa., 1860
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Snyder township federal census 1850 : from microfilmed records
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Immigrants to the middle colonies : a consolidation of ship passenger lists and associated data from the New York genealogical and biographical record
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I am legend
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If ... : a mind-bending new way of looking at big ideas and numbers
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Bernie
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Population infographics
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Empty planet : the shock of global population decline
