Physiology at the farm in aid of rearing and feeding the live stock - Stephens, Henry, 1795 -1874 (W. Blackwood, 1867)

Physiology at the farm in aid of rearing and feeding the live stock - Seller, William, 1798 -1869 (W. Blackwood and sons, 1867)

Phytogeographic survey of North America. A consideration of the phytogeography of the North American continent, including Mexico, Central America and the West Indies, together with the evolution of North American plant distribution - Harshberger, John W. (John William), 1869 -1929 (W. Engelmann, 1911)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1968)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1981)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1983)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1992)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 2010)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1855)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1857)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1858)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1860)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1861)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1862)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1841)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1847)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1850)

The Phytologist: a popular botanical miscellany - Newman, Edward, 1801 -1876 (John van Voorst, 1854)

Phytoneuron (Guy L. Nesom, 2011)

Phytoneuron (Guy L. Nesom, 2013)

Phytoneuron (Guy L. Nesom, 2015)

Phytoneuron (Guy L. Nesom, 2016)

Phytoneuron (Guy L. Nesom, 2019)

Le piante fanerogame della Svissera insubrica : enumerate seconde il metodo decandolliano - Favrat, Louis, 1827 -1893 (H. Georg, 1890)

Le piante fanerogame della Svizzera insubrica : enumerate secondo il methodo decandolliano - Favrat, Louis, 1827 -1893 (H. Georg, 1890)

Pierre Pena et Mathias de Lobel - Legré, Ludovic, 1838 -1904 (H. Aubertin & G. Rolle, 1899)

Pine Nut Mountains proposed plan amendment and environmental assessment - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, Carson City Field Office, 1998)

Pittier, correspondence and notes - Pittier, Henri, 1857 -1950 (1931)

Pittier, notes, plant lists - Pittier, Henri, 1857 -1950 (1937)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1934)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1966)

Plant life of Alabama, an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown printing co, 1901)

Plant life of Alabama. An account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state. Prepared in cooperationwith the Geological Survey of Alabama - Mohr, Charles (Charles Theodore), 1824 -1901 (Govt. Print. Off, 1901)

Plant list of Waterloo County - Montgomery, F. H. (Frederick Howard), 1902 - (1943)

Plant lists - Watson, Sereno, 1826 -1892 (1867)

Plant lists : Colombia, Chile, Peru, and Brazil - Smith, Albert C. (Albert Charles), 1906 Apr 5 - (1922)

Plant lists : Colombia, Costa Rica, and Venezuela - Pittier, Henri, 1857 -1950 (1888)

The Plant world - Plant World Association. (Plant World Association [etc.], 1909)

The Plant world - Plant World Association. (Plant World Association [etc.], 1913)

Plantae Bequaertianae; études sur les récoltes botaniques du Dr. J. Bequaert, chargé de missions au Congo Belge (1913-1915) - Wildeman, E. de (Emile), 1866 -1947 (A. Hoste; [etc., etc.], 1921)

Plantae Brasiliae centralis a Glaziou lectae = Liste des plantes du Bre´sil central recueillies en 1861-1895 - Glaziou, A. F. M. (Auguste Franois Marie), 1828 -1906 (Au sige de la Socit, 1905)

Plantas Romaniae hucusque cognitas - Kanitz, Ágost, 1843 -1896 (Apud E. Demjén, 1879)

Les plantes médicinales - Losch, Friedrich. (Vigot Frères, 1906)

Les plantes - Faideau, Ferdinand, 1862 -1930? (Larousse, 1922)

Les plantes utiles des colonies françaises - Lanessan, J.-L. de Jean Louis 1843 -1919 (Impr. nationale, 1886)

Plantes vasculaires des environs de Cherbourg - Le Jolis, Auguste, 1823 -1904 (J.B. Baillière, 1860)

Plantkundig woordenboek voor Nederlandsch Indië : met korte aanwijzingen van het geneeskundig- en huishoudelijk gebruik der planten, en vermelding der verschillende inlandsche wetenschappelijke benamingen - Filet, G. J., 1825 -1891 (J.H. de Bussy, 1888)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1972)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1983)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1985)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1989)

Plants and their uses; an introduction to botany - Sargent, Frederick Leroy, 1863 -1928 (H. Holt and company, 1913)

Plants indigenous to the colony of Victoria. Vol. 1 : Thalamiflorae - Mueller, Ferdinand von, 1825 -1896 (Government Printer, 1860)

Plants of Mississippi : a list of flowering plants and ferns - Lowe, E. N. (Ephraim Noble), 1864 -1933 (Mississippi State Geological Survey, 1921)

Plants of Monroe County, New York, and adjacent territory - Beckwith, Florence. (1896)

The plants of Prince Edward Island - Erskine, D. S. (David Sterling) (Research Branch, Agriculture Canada, 1985)

The plants of Prince Edward Island - Erskine, D. S. (David Sterling) (Plant Research Institute, Research Branch, Canada Dept. of Agriculture, 1960)

Plants of the Punjab; a descriptive key to the flora of the Punjab, North-west Frontier Province and Kashmir - Bamber, Charles James, 1855 - (Printed by The Superintendent Government Printing, 1916)

Plants, their natural growth and ornamental treatment - Hulme, F. Edward (Frederick Edward), 1841 -1909 (Marcus Ward & Co, 1874)

Poisons; their effects and detection - Blyth, Meredith Wynter. (C. Griffin & company, limited, 1920)

A popular California flora, or, Manual of botany for beginners : with illustrated introductory lessons especially adapted to the Pacific coast : to which is added an analytical key to West Coast botany, containing brief descriptions of over 1600 species of Pacific coast plants - Rattan, Volney, 1840 -1915 (Bancroft, 1887)

A popular California flora : or, manual of botany for beginners ... : to which is added an analytical key to West Coast botany ... - Rattan, Volney, 1840 -1915 (Bancroft, 1888)

Popular field botany; containing a familiar and technical description of the plants most common to the various localities of the British Isles, adapted to the study of either the artificial or natural systems - Catlow, Agnes, 1807? -1889 (Reeve, Benham, and Reeve, 1848)

A popular flora of Denver, Colorado - Eastwood, Alice, 1859 -1953 (Zoe Publishing Company, 1893)

Popular garden flowers : anemones, asters, begonias ... [et al.] - Wright, Walter P. (Walter Page), 1864 -1940 (Doubleday Page, 1911)

Popular geography of plants; or, A botanical excursion round the world - Daubeny, Charles, 1795 -1867 (L. Reeve, 1855)

Popular geography of plants; or, A botanical excursion round the world - Daubeny, Charles, 1795 -1867 (1855)

Populäre Botanik oder gemeinfassliche Anleitung zum Studium der Pflanze und des Pflanzenreiches. Zugleich ein Handbuch zum Bestimmen der Pflanzen auf Excursionen - Schmidlin, Eduard, 1808? -1890 (Krais & Hoffmann, 1857)

Potential impact of proposed noxious weed treatment at Bluewater Fish Hatchery (MDFWP) on plant species of special concern - Montana Natural Heritage Program. ([Montana Natural Heritage Program], 1994)

A practical flora for schools and colleges - Willis, Oliver R. (Oliver Rivington), 1815 -1902 (American Book Co, 1894)

The practical gardener, and modern horticulturist - McIntosh, Charles, 1794 -1864 (T. Kelly, 1836)

A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conifers; hardy ferns; hardy bamboos and other ornamental grasses. Also the best kinds of fruits and vegetables that may be grown in the open air in the British Isles with full and practical instruction as to culture and propagation - Weathers, John, 1867 -1928 (Longmans, Green, 1901)

Practical guide to the wild flowers and fruits - Walton, George Lincoln, 1854 -1941 (J.B. Lippincott company, 1909)

Practical guide to the wild flowers and fruits - Walton, George Lincoln, 1854 -1941 (Lippincott, 1909)

Practical physiology of plants - Darwin, Francis, Sir, 1848 -1925 (University Press, 1894)

Practical physiology of plants - Darwin, Francis, Sir, 1848 -1925 (University press, 1901)

Practical physiology of plants - Darwin, Francis, Sir, 1848 -1925 (University Press, 1907)

Practical physiology of plants - Darwin, Francis, Sir, 1848 -1925 (University Press, 1895)

Practical text-book of plant physiology - MacDougal, Daniel Trembly, 1865 -1958 (Longmans, 1908)

Practical text-book of plant physiology - MacDougal, Daniel Trembly, 1865 -1958 (Longmans, Green, and Co, 1901)

Preliminary catalog of Anthophyta and Pteridophyta, reported as growing spontaneously within one hundred miles of New York City - Torrey Botanical Club. (1888)

Preliminary catalogue of Anthophyta and Pteridophyta, reported as growing spontaneously within one hundred miles of New York City - Torrey Botanical Club. (1888)

A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the Survey, 1881)

... A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the survey, 1881)

A preliminary catalogue of the flowering plants and higher cryptogams growing without cultivation within thirty miles of Hanover, N.H., to which is appended a list of the vertebrates of the same region - Jesup, Henry G. (Henry Griswold), 1826 -1903 (N.A. McClary, 1882)

Preliminary inventory of Canadian weeds - Crompton, Clifford W. (Agriculture Canada, Research Branch, 1988)

Preliminary list of plants of Buffalo and its vicinity - Buffalo Society of Natural Sciences. (Young, Lockwood & Co's. steam press, 1864)

A preliminary list of the plants of New Brunswick - Fowler, James, 1829 -1923 (Ellis, Robertson & Co, 1885)

A preliminary list of the vascular flora of Allegheny County, Pennsylvania - Shafer, John Adolph, 1863 -1918 (Carnegie Institute Museum?, 1901)

A preliminary list of the vascular plants of the Lackawanna and Wyoming valleys - Dudley, William Russel, 1849 -1911 (The Republican Press, 1887)

Principal range plants of the central and southern Rocky Mountains : names and symbols - Nickerson, Mona F. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1976)

The principles and practice of land drainage - Klippart, John H. (John Hancock), 1823 -1878 (R. Clarke & co, 1861)

The principles and practice of land drainage: embracing a brief history of underdraining; a detailed examination of its operation and advantages: a description of various kinds of drains, with practical directions for their construction: the manufacture of drain-tile, etc - Klippart, John H. (John Hancock), 1823 -1878 (R. Clarke & co, 1862)

The principles of biology - Spencer, Herbert, 1820 -1903 (D. Appleton, 1899)

The principles of plant-teratology - Worsdell, Wilson Crosfield (The Ray Society, 1915)

The principles of vegetable-gardening - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1921)

The principles of vegetable-gardening - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company; [etc., etc.], 1901)

The principles of vegetable-gardening - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan Company, 1912)

Prirodoslovna istraživanja - Jugoslavenska akademija znanosti i umjetnosti. (1916)

Problems of cytology and evolution in the Pteridophyta - Manton, I. (University Press, 1950)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings - Essex Institute. (1856)

Proceedings (and Annual Report) of the Holmesdale Natural History Club, Reigate - Holmesdale Natural History Club. (1893)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1970)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1976)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1980)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1901)

Proceedings and transactions of the Croydon Natural History and Scientific Society - Croydon Natural History; Scientific Society. (Croydon Natural History and Scientific Society, 1903)

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, 1889)

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

Proceedings and transactions of the Nova Scotian Institute of Natural Science - Nova Scotian Institute of Natural Science. (Nova Scotian Institute of Natural Science, 1870)

The Proceedings and transactions of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1890)

Proceedings and transactions of the Nova Scotian Institute of Natural Science - Nova Scotian Institute of Natural Science. (Nova Scotian Institute of Natural Science, 1883)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1913)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1953)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1956)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)