Parasitology - British Society for Parasitology. (Cambridge University Press, 1911)

Parasitology - British Society for Parasitology. (Cambridge University Press, 1915)

Parsons' national register of pacing horses : record of pedigrees and a full summary of pacing performaces for the year 1890 - Parsons, Thomas C. (National Standard Pacing Horse Breeders, 1891)

Passional zoology; or, Spirit of the beasts of France - Toussenel, A. (Alphonse), 1803 -1885 (Fowlers and Wells, 1852)

Pater mundi, or, Doctrine of evolution : being in substance lectures delivered in various colleges and theological seminaries - Burr, E. F. (Enoch Fitch), 1818 -1907 (Noyes, Holmes, 1873)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1846)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1849)

Pearls & parasites - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (Murray, 1908)

Pedigrees of English Short-horn bulls, to which American Short-horns trace - Allen, Lewis F. (Lewis Falley), 1800 -1890 (Warren, Johnson, 1874)

The Penycuik experiments - Ewart, J. C. (James Cossar), 1851 -1933 (A. and C. Black, 1899)

Die Perlmuscheln und ihre Perlen. Naturwissenschaftlich und geschichtlich mit Berücksichtigung der Perlengewässer Bayerns - Hessling, Theodor von, 1816 -1899 (W. Engelmann, 1859)

Perry's seeds, 1935 : lawn, vegetable and flower seeds, bulbs, plants, garden and poultry supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Seed Company, 1935)

Perry's seeds, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Seed Company, 1936)

Perry's seeds and garden requisites, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perry Seed Company, 1934)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Petites nouvelles entomologiques (E. Deyrolle, 1869)

Philosophiae natvralis sive Physicae dogmaticae tomvs I[-IV] continens ... continvationem systematis philosophici Christiani L.B. de Wolff - Hanov, M. C. (Michael Christoph), 1695 -1773 (Prostat in officina libraria rengeriana, 1762)

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)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1993)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1994)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1995)

Pickings on the sea-shore; or, Cliffs, sands, plants, and animals: a hand-book for Brighton, Ramsgate, Folkestone, Dover, Hastings, the Isle of Wight, Scarborough, and other parts of the coast, and for the vivarium at home - Williams, Charles, 1796 -1866 (Judd and Glass, 1857)

The pictorial gallery of English race horses : containing portraits of all the winners of the Derby, Oaks and St. Leger Stakes, during the last twenty years ; and a history of the principal operations of the turf - Cooper, Abraham, 1787 -1868 (Henry G. Bohn, 1850)

The pictorial museum of animated nature - Knight, Charles, 1791 -1873 (C. Cox, 1844)

The pictorial museum of animated nature ... - Knight, Charles, 1791 -1873 (C. Knight, 1844)

The pictorial museum of animated nature - William Clowes; Sons, (George Cox, 18 King Street, Covent Garden, 1844)

A plea for the horse, in a few remarks and suggestions upon his treatment and management ([s.n.], 1847)

Pliny's natural history in thirty-seven books - Pliny, the Elder, 23 or 24 -79 (Barclay, 1847)

Pliny's Natural history. In thirty-seven books - Pliny, the Elder, 23 or 24 -79 (Printed for the Club by G. Barclay, 1847)

The Plough, the loom, and the anvil (J.S. Skinner & Son], 1848)

Points of the horse : a treatise on the conformation, movements, breeds and evolution of the horse - Hayes, M. Horace (Matthew Horace), 1842 -1904 (Hurst and Blackett, limited, 1904)

Points of the horse; a treatise on the conformation, movements, breeds and evolution of the horse - Hayes, M. Horace (Matthew Horace), 1842 -1904 (Hurst and Blackett, limited, 1904)

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 Science Review (1875)

Portraits of celebrated racehorses of the past and present centuries : in strictly chronological order, commencing in 1702 and ending in 1870 together with their respective pedigrees and performance recorded in full - Taunton, Thomas Henry. (S. Low, Marston, Searle & Rivington, 1887)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1999)

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1921)

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1924)

Practical horsemanship - Kerr, W. A. (William Alexander), 1831 -1919 (F.A. Stokes, 1891)

Practical horsemanship - Kerr, W. A. (William Alexander), 1831 -1919 (George Bell & Sons, 1891)

Prairie and forest : a description of the game of North America : with personal adventures in their pursuit - Gillmore, Parker, 1835 -1900 (Chapman and Hall, 1874)

Prairie and forest: a description of the game of North America, with personal adventures in their pursuit - Gillmore, Parker, 1835 -1900 (Harper, 1874)

Prairie and forest a description of the game of North America, with personal adventures in their pursuit - Gillmore, Parker, 1835 -1900 (Harper, 1874)

Prairie and forest; a guide to the field sports of North America - Gillmore, Parker, 1835 -1900 (Allen, 1881)

Praktikum der Fischkrankheiten - Plehn, Marianne, 1863 -1946 (Schweizerbart (E. Nägele) g.m.b.h, 1924)

Praktische Studien an der Familie der Orchideen, nebst Kulturanweisungen und Beschreibung aller schönblühenden tropischen Orchideen - Beer, Johann Georg, 1803 -1873 (Gerold & Sohn, 1854)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1902)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1909)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1910)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1912)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings and transactions of the Liverpool Biological Society - Liverpool Biological Society. (The Society, 1905)

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, 1846)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1852)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1857)

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 Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1886)

Proceedings of the Asiatic Society of Bengal - Asiatic Society of Bengal ([The Society], 1866)

Proceedings of the Asiatic Society of Bengal - Asiatic Society of Bengal ([The Society], 1867)

Proceedings of the Asiatic Society of Bengal - Asiatic Society of Bengal ([The Society], 1868)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1992)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1993)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1874)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2018)

Proceedings of the Canadian Institute. New series - Royal Canadian Institute (1897)

Proceedings of the Florida Academy of Sciences - Florida Academy of Sciences. (Rose Printing Co., etc, 1940)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1886)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1903)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1902)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1911)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1913)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1933)

Proceedings of the Literary and Philosophical Society of Liverpool - Literary; Philosophical Society of Liverpool. (1845)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1954)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1956)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1959)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1961)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1966)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1967)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1968)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1971)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1930)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1974)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1975)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1884)