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Patterns and problems of development - Child, Charles Manning, 1869 -1954 (The University of Chicago Press, 1941)

Pesticides monitoring journal - United States. Chemical Information Division. (Technical Services Division, Office of Pesticide Programs, U.S. Environmental Protection Agency, 1974)

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Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1910)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1915)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1917)

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The pineal organ; the comparative anatomy of median and lateral eyes, with special reference to the origin of the pineal body; and a description of the human pineal organ considered from the clinical and surgical standpoints - Gladstone, Reginald John, 1865 - (Williams & Wilkins, 1940)

A plan for an educational exhibit of fishes - Miner, Roy Waldo, 1875 -1955 (Govt. print. off, 1910)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1901)

The population problem; a study in human evolution - Carr-Saunders, A. M. (Alexander Morris), 1886 -1966 (Clarendon Press, 1922)

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