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)

La piscicoltura - Vogt, Karl Christoph, 1817 -1895 (Tip. di Carlo Franchi, 1865)

Placentaranlage des Lutung (Semnopithecus pruinosus von Borneo) - Selenka, Emil, 1842 -1902 (1901)

Plant disease Fungi - Stevens, Frank Lincoln, 1871 -1934 (The Macmillan company, 1925)

Les poissons des côtes de Belgique : leurs parasites et leurs commensaux - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (M. Hayez, Imprimeur de l'academie royale de Belgique, 1870)

Les poissons des eaux douces de l'Afrique occidentale : du Sénégal au Niger - Pellegrin, Jacques, 1873 -1944 (E. Larose, 1923)

Les poissons des eaux douces de la France : anatomie, physiologie, description des espèces, murs, instincts, industrie, commerce, ressources alimentaires, pisciculture, législation concernant la pêche - Blanchard, Emile, 1819 -1900 (Baillière, 1866)

Les poissons des eaux douces de la France : anatomie, physiologie, description des espèces, mŒurs, instincts, industrie, commerce, ressources alimentaires, pisciculture, législation concernant la pêche - Blanchard, Emile, 1819 -1900 (Bailli©·re, 1866)

Les poissons des eaux douces de la France; anatomie–physiologie–description des espèces–moeurs–instincts–industrie–commerce–resources alimentaires–pisciculture–législation concernant la pêche - Blanchard, Emile, 1819 -1900 (J. B. Baillière et fils, 1880)

Les poissons : synonymie–description–mœurs–frai–pêche–iconographie, des espèces composant plus particulièrement la faune française - Boulart, R. (Raoul), 1849 -1901 (J. Rothschild, 1876)

Popular natural history : a description of animal life, from the lowest forms up to man - Kingsley, J. S. (John Sterling), 1854 -1929 (Estes & Lauriat, 1890)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1877)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1888)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1892)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1903)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1910)

Popular Science Review (1868)

Popular Science Review (1878)

Popular Science Review (1881)

The practical fisherman : dealing with the natural history, the legendary lore, the capture of British freshwater fish, and tackle and tackle making - Keene, John Harrington. (The Bazaar Office, 1881)

Practical zoölogy : an elementary text-book treating of the structure, life, history, and relations of animals - Davison, Alvin, 1868 -1915 (American Book Company, 1906)

Praecedunt observationes nonnullae de ovorum Ranarum segmentatione, quae "Furchungsprocess" dicitur : tabulis duabus illustratae / legitime indicit Max. Schultze - Schultze, Max Johann Sigismund, 1825 -1874 (Formis Caroli Georgi, 1863)

Preliminary report on the fish and fisheries of Ontario - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (s.n, 1892)

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Die preussische expedition nach Ost-Asien : nach amtlichen quellen V. 1 Zoologischer theil - Martens, Eduard von, 1831 -1904 (R. v. Decker, 1876)

The primitive streak and notochordal canal in Chelonia - Davenport, Gertrude Anna Crotty, 1866 - (Ginn, 1896)

Primitivstreifen und Neurula der Wirbelthiere, in normaler und pathologischer Beziehung - Royal College of Physicians of Edinburgh. (W. Engelmann, 1877)

Primordial-Cranium und Kieferbogen von Rana fusca : Eine entwicklungsgeschichtliche und vergleichend-anatomische Untersuchung - Gaupp, Ernst Wilhelm Theodor, 1865 -1916 (G. Pätz'sche (Lippert & Co.)], 1893)

The principles of biology, by J. I. Hamaker - Hamaker, John Irvin, 1869 - (P. Blakiston, 1913)

The principles of biology - Hamaker, J. I. (John Irvin), 1869 - (P. Blakiston's Sons & Co, 1913)

Principles of embryology - Waddington, C. H. (Conrad Hal), 1905 -1975 (Macmillan, 1956)

Prize essay on the natural and economical history of the fishes marine, fluviatile, and lacustrine, of the river district of the Firth of Forth - Parnell, Richard, 1810 -1882 (A. and C. Black, 1838)

Un problème de l'évolution; la théorie de la récapitulation des formes ancestrales au cours du développement embryonnaire (loi biogénétique fondamentale de Haeckel) - Vialleton, L. (Louis), 1859 -1929 (Coulet et fils, 1908)

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Proceedings and papers of the National fishery congress, held at Tampa, Florida, January 19-24, 1898 (Govt. print. off, 1898)

Proceedings and transactions of the Liverpool Biological Society - Liverpool Biological Society. (The Society, 1891)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1892)

Proceedings and transactions of the Nova Scotian Institute of Natural Science - Nova Scotian Institute of Natural Science. (Nova Scotian Institute of Natural Science, 1879)

Proceedings - Cambridge Philosophical Society Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1883)

Proceedings - Cambridge Philosophical Society Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1886)

Proceedings - Cambridge Philosophical Society Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1889)

Proceedings - Cambridge Philosophical Society Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1895)

Proceedings - Cambridge Philosophical Society Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1904)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1850)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1861)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1864)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1876)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1882)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1886)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1892)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1902)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1904)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1907)