Proceedings of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (South London Entomological and Natural history Society, 1906)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1879)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1883)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1904)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1908)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1927)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1956)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1872)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1873)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1877)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1912)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1917)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1911)

Procès-verbaux - Société Linnéenne de Bordeaux. (1917)

Prodrome de paléontologie stratigraphique universelle des animaux mollusques & rayonnés, faisant suite au Cours élémentaire de paléontologie et de géologie stratigraphiques - Orbigny, Alcide Dessalines d', 1802 -1857 (V. Masson, 1849)

Prodromus faunae mediterraneae, sive Descriptio animalium maris Mediterranei incolarum, quam comparata silva rerum quatenus innotuit, adiectis locis et nominibus vulgaribus eorumque auctoribus - Carus, Julius Victor, 1823 -1903 (E. Schweizerbart, 1885)

Prodromus faunae mediterraneae, sive Descriptio animalium maris Mediterranei incolarum, quam comparata silva rerum quatenus innotuit, adiectis locis et nominibus vulgaribus eorumque auctoribus - Carus, Julius Victor, 1823 -1903 (E. Schweizerbart, 1889)

Programa de un curso de zoologia - Dugès, Alfredo (Imprenta del Estado a cargo de Justo Palencia, 1878)

Propriétés optiques des muscles - Vlès, Fred, 1885 - (A. Hermann, 1911)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1921)

Publications - Ontario Fisheries Research Laboratory. (University of Toronto Press, 1922)

Publications in zoology = Publications en zoologie - National Museum of Natural Sciences (Canada) (National Museums of Canada, National Museum of Natural Sciences, 1974)

The pygmy smelt, Osmerus spectrum, Cope, 1870 : a forgotten sibling species of eastern North American fish - McAllister, Don E. 1934 - (National Museum of Natural Sciences, National Museums of Canada, 1983)

Das Quadersandsteingebirge oder Kreidegebirge in Deutschland - Geinitz, Hanns Bruno, 1814 -1900 (Craz & Gerlach, 1849)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1865)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1869)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1870)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1875)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1877)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1880)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1881)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1885)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1887)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1891)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1892)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1894)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1899)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1900)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1906)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1907)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1913)

The Quarterly journal of science (J. Churchill and Sons, etc, 1869)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1856)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1857)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1858)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1877)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1897)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1895)

The Quarterly journal of the Geological Society of London - Geological Society of America. (1896)

Raboty Volzhskoĭ biologicheskoĭ stant͡sii = Arbeiten der Biologischen Wolga-Station - Volzhskai͡a biologicheskai͡a stant͡sii͡a (Stant͡sii͡a, 1912)

Raboty Volzhskoĭ biologicheskoĭ stant͡sii = Arbeiten der Biologischen Wolga-Station - Volzhskai͡a biologicheskai͡a stant͡sii͡a (Stant͡sii͡a, 1914)

Rambles and reveries of a naturalist - Spiers, William. (Kelly, 1890)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1830)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1829)

Readings in evolution, genetics, and eugenics - Newman, Horatio Hackett, 1875 -1957 (University of Chicago Press, 1921)

Readings in evolution, genetics and eugenics - Newman, Horatio Hackett, 1875 -1957 (University of Chicago Press, 1921)

The recapitulation theory and human infancy - Davidson, Percy Erwin, 1874 - (Teachers College, Columbia University, 1914)

The recapitulation theory and human infancy - Davidson, Percy E. (Percy Erwin), 1874 - (Teachers college, Columbia university, 1914)

Recherches anatomiques et histologiques sur le Cyclostoma elegans - Garnault, Paul. (s.n, 1887)

Recherches expérimentales sur les conditions physiques de la vie dans les eaux - Regnard, Paul, 1871 -1957 (Masson, 1891)

Recherches expérimentales sur les conditions physiques de la vie dans les eaux - Royal College of Physicians of Edinburgh. (G. Masson, 1891)

Recherches pour servir a l'histoire naturelle du littoral de la France, ou, Recueil de mémoires sur l'anatomie, la physiologie, la classification et les moeurs des animaux des nos côtes : ouvrage accompagné de planches faites d'après nature - Audouin, Jean Victor, 1797 -1841 (Crochard, libraire, 1832-1834, 1832)

Recherches sur la faune littorale de Belgique : crustacés - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (M. Hayez, Imprimeur de l'Academie royale de Belgique, 1861)

Recherches sur la faune littorale de Belgique : crustacés - Beneden, P.-J. van (Pierre Joseph), 1809 -1894 (Hayes, impr. de l'Académie, 1861)