The physiology of earthworms - Laverack, M. S. (Macmillan, 1963)

The physiology of the Invertebrata - Griffiths, A. B. (Arthur Bower), 1859 - (D. Appleton and Company, 1892)

The physiology of the invertebrata - Griffiths, A. B. (Arthur Bower), 1859 - (L. Reeve, 1892)

The physiology of twinning - Newman, Horatio Hackett, 1875 -1957 (The University of Chicago Press, 1923)

Pond life - Ash, Edward C. (Edward Cecil), 1888 - (T.C. & E.C. Jack, 1913)

Pond life - Ash, Edward C. (Edward Cecil), 1888 - (T.C. & E. Jack, 1913)

The popular encyclopedia; being a general dictionary of arts, sciences, literature, biography, history, and political economy, reprinted from the American edition of the "Conversations lexicon" ... with dissertations on the rise and progress of literature (Blackie, 1900)

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, 1887)

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

Popular Science Review (1863)

A popular zoology - Jenks, J. W. P. 1819 -1894 (A.S. Barnes & Company, 1887)

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 zoology for medical & junior students - Bonde, Cecil von, 1895 -1983 (W. Wood, 1922)

Preliminary draft, Josephine timber management environmental statement - United States. Bureau of Land Management. Oregon State Office. (U.S. Department of the Interior, Bureau of Land Management, Oregon State Office, 1977)

The principles and practice of veterinary medicine - Williams, William, 1832 -1900 (John Menzies, 1897)

Principles of animal biology - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (McGraw-Hill, 1920)

Principles of animal biology - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (McGraw-Hill book company, inc, 1946)

Principles of soil microbiology - Waksman, Selman A. (Selman Abraham), 1888 -1973 (Williams & Wilkins, 1927)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings - University of Illinois at Urbana-Champaign. College of Agricultural, Consumer; Environmental Sciences. (University of Illinois at Urbana-Champaign, College of Agricultural, Consumer and Environmental Sciences, University of Illinois Extension, 2002)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1881)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1889)

Proceedings and transactions of the Liverpool Biological Society - Liverpool Biological Society. (The Society, 1914)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1886)

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

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1959)

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, 1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1885)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1890)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1912)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1913)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1897)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1962)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1966)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1969)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1976)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1856)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1949)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1959)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1962)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2016)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1969)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1974)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1987)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1933)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1918)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1920)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1922)

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 Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1894)

Proceedings of the Liverpool Biological Society - Liverpool Biological Society. (The Society, 1886)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1891)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1907)

Proceedings of the Royal Physical Society of Edinburgh - Royal Physical Society of Edinburgh. (The Society, 1883)

Proceedings of the Royal Physical Society of Edinburgh - Royal Physical Society of Edinburgh. (The Society, 1888)

Proceedings of the Royal Physical Society of Edinburgh - Royal Physical Society of Edinburgh. (The Society, 1909)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1886)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1887)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1890)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1856)

Proceedings of the Royal Society of London. Series B, Containing papers of a Biological character - Royal Society (Great Britain) (Printed for the Royal Society and sold by Harrison & Sons, 1912)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1879)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1893)

Proceedings of the Society for Experimental Biology and Medicine - Society for Experimental Biology; Medicine (New York, N.Y.) ([Society for Experimental Biology and Medicine], 1920)

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

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1893)

Prodromo della storia naturale generale e comparata d'Italia ... - Marmocchi, Francesco Constantino, 1805 -1858 (Società editrice fiorentina, 1844)

The protection of pome fruits, March 1985-May 1992 : citations from AGRICOLA concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (National Agricultural Library, 1992)

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

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (C. C. Thomas, 1954)

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (C.C. Thomas, 1946)

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (Thomas, 1939)

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

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1966)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1975)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1985)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1863)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1864)

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

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.], 1878)

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

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1889)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1890)

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.], 1900)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1904)