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Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1927)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1981)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1982)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1983)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1987)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1995)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1998)

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Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1977)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1979)

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The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1922)

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Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1989)

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

Proceedings of the Royal Physical Society of Edinburgh - Royal Physical Society of Edinburgh. (The Society, 1885)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1875)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1897)

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Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1875)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1936)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1937)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1961)

Proceedings of the Royal Society of Victoria. New series - Royal Society of Victoria (Melbourne, Vic.) (Stillwell and Co, 1975)

Proceedings of the second Endangered Species and Prairie Conservation Workshop, January 1989 at the Saskatchewan Museum of Natural History, Regina, Saskatchewan - Smith, Hugh C. (Natural History Section, Provincial Museum of Alberta, 1991)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1891)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1917)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1931)

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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)

Productive feeding of farm animals - Woll, F. W. (Fritz Wilhelm), 1865 -1922 (J. B. Lippincott Company, 1921)

Proteus; or Unity in nature - Radcliffe, Charles Bland, 1822 -1889 (Macmillan and co, 1877)

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

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1915)

Publication. Field Museum of Natural History. Anthropological series - Field Museum of Natural History. (The Museum, 1940)

Pussy wants a corner in this book, which reviews the delights of the World's fair and contains a series of articles depicting the pleasures of field sports - Leffingwell, William Bruce. (1894)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1979)

Quality of aquatic habitats in Alberta : Proceedings of the third annual applied aquatics studies workshop, Edmonton, Alberta, February 17-18, 1987 - Alberta Environmental Centre. (Alberta Environmental Centre, 1992)

Quality orchids at present day prices - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armacost & Royston, Inc, 1934)

Quality peonies and oriental poppies : 1930 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Auglaize Gardens, 1930)

Quality peonies and oriental poppies, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Auglaize Gardens, 1931)

Quality peonies and oriental poppies, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Auglaize Gardens, 1932)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1866)

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

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1868)

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