Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1881)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1906)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1907)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1926)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1841)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1846)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1859)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1864)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1928)

Proceedings of the California Academy of Natural Sciences - California Academy of Natural Sciences (The Academy, 1854)

Proceedings of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1876)

Proceedings of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1896)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1927)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1930)

Proceedings of the Canadian Institute - Glenny, George, 1793 -1874 (Canadian Institute, 1883)

Proceedings of the Canadian Institute - Glenny, George, 1793 -1874 (Canadian Institute, 1884)

Proceedings of the Cleveland Academy of Natural Science - Cleveland Academy of Natural Science. (Published by a Gentleman of Cleveland, 1874)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1925)

Proceedings of the Essex Institute - Essex Institute. (Essex Institute Press, 1848)

Proceedings of the Essex Institute - Essex Institute. (Essex Institute Press, 1856)

Proceedings of the Essex Institute - Essex Institute. (Essex Institute Press, 1866)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1910)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1908)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1848)

Proceedings of the Literary and Philosophical Society of Liverpool - Literary; Philosophical Society of Liverpool. (1854)

Proceedings of the Lyceum of Natural History in the City of New York - Lyceum of Natural History (New York, N.Y.) (The Society, 1870)

Proceedings of the National Academy of Sciences of the United States of America - National Academy of Sciences (U.S.) (National Academy of Sciences [etc.], 1918)

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1846)

Proceedings of the Natural history society of Dublin for the session ... - Natural History Society of Dublin. (Printed for the Society, 1862)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1832)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1857)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1866)

Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1923)

Proceedings of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (South London Entomological and Natural history Society, 1901)

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.], 1880)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1881)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1882)

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.], 1884)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1885)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1888)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1892)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1895)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1897)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1898)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1901)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1903)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1906)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1907)

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.], 1910)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1911)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1912)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1925)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1942)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1952)

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

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1833)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1837)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1875)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1879)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1899)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1910)

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

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1913)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1922)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1923)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1830)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1901)

Procès-verbaux - Société Linnéenne de Bordeaux. (1962)

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)

Prose halieutics, or, Ancient and modern fish tattle - Badham, David, 1806 -1857 (John W. Parker, 1854)

Prose halieutics; or, Ancient and modern fish tattle - Badham, David, 1806 -1857 (J.W. Parker, 1854)

Protoplasmic theory of life - Drysdale, J. G. S. (Bailliere, Tindall & Cox, 1874)

Protozoa - Schwager, Conrad. (C.F. Winter, 1880)

Die Protozoen als Krankheitserreger : Nachtraege - Pfeiffer, L. (Ludwig), 1842 -1921 (G. Fischer, 1895)

Protozoology : a manual for medical men, veterinarians and zoologists - Wenyon, C. M. (Charles Morley), 1878 -1948 (W. Wood, 1926)

Provincial Museum of Natural History and Enthnology - British Columbia Provincial Museum. (Printed by Richard Wolfenden, 1909)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1880)

Publications in zoology = Publications en zoologie - National Museum of Natural Sciences (Canada) (National Museums of Canada, National Museum of Natural Sciences, 1970)

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)

Quadro elementar da historia natural dos animaes - Cuvier, Georges, baron, 1769 -1832 (impresso por H. Bryer, 1815)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1859)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1867)

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

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1876)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1878)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1883)

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

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1901)