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Our reptiles. A plain and easy account of the lizards, snakes, newts, toads, frogs, and tortoises indigenous to Great Britain - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (R. Hardwicke, 1865)

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Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Young J. Pentland, 1895)

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Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton & Co, 1895)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (H. Frowde and Hodder & Stoughton, 1899)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Appleton, 1916)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton & Co, 1892)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton, 1895)

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Die Pflanzenwelt Deutschlands; Lehrbuch der Formations- biologie. Eine Darstellung der Lebensgeschichte der wildwachsenden Pflanzenvereine und der Kulturflächen - Graebner, Paul, 1871 -1933 (Quelle & Meyer, 1909)

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Photoperiodism and related phenomena in plants and animals; proceedings - Withrow, Robert B. 1904 -1958 (1959)

Phylogenetic analysis and taxonomy of the Tropidurus group of lizards (Iguania, Tropiduridae) - Frost, Darrel R. (American Museum of Natural History, 1992)

Phylogenetic relationships of whiptail lizards of the genus Cnemidophorus (Squamata, Teiidae) : a test of monophyly, reevaluation of karyotypic evolution, and review of hybrid origins - Dessauer, Herbert C. (American Museum of Natural History, 2002)

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Phytoneuron (Guy L. Nesom, 2012)

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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)

Pisces, batrachia, and reptilia - Boulenger, George Albert 1858 -1937 (Zoological Society of London, 1909)

Piscium, serpentum, insectorum, aliorumque nonnullorum animalum nec non plantarum quarundam imagines :quas Marcus Catesby in posteriore parte splendidi illius operis quo Carolinae Floridae et Bahamensium Insularum traditit historiam naturalem eivsque appendice descripsit - Eisenberger, Nicolaus Friedrich, 1707 -1771 (Georgii Wolfgangi Knorrii, 1777)

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