Books in Category: Science - Earth/Agricultural/Farming (sorted alphabetically)
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Pig: Breeding, Rearing, and Marketing
Sanders Spencer
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Pig Raising: A Manual for Pig Clubs
Aretas Wilbur Nolan and James Henry Greene
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Pioneer Saturn Encounter
United States. National Aeronautics and Space Administration
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Plain Concrete for Farm Use
T. A. H. Miller
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Plants Poisonous to Live Stock
Harold Cecil Long
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Plato's Doctrine Respecting the Rotation of the Earth and Aristotle's Comment Upon That Doctrine
George Grote
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Pleasant Ways in Science
Richard A. Proctor
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Pleasures of the telescope
Garrett Putman Serviss
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Pleistocene of North America
Oliver Perry Hay
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plums of New York
U. P. Hedrick
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Polarforskningen (Swedish)
A. G. Nathorst
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Polar World
G. Hartwig
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Political and commercial geology and the world's mineral resources
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Popular Books on Natural Science
Aaron David Bernstein
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Popular Science Monthly, August, 1900
Various
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Popular Science Monthly, July, 1900
Various
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Popular Scientific Recreations
Gaston Tissandier
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Popular Superstitions, and the Truths Contained Therein
Herbert Mayo
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Possible Solution of the Number Series on Pages 51 to 58 of the Dresden Codex
Carl E. Guthe
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Poultry
Hugh Piper
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Poultry diseases
E. J. Wortley
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Poultry for profit
R. A. Power
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Practical Angora Goat Raising
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Practical Astronomer
Thomas Dick
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Practical Exercises in Elementary Meteorology
Robert DeCourcy Ward