Phenology and production studies on semi-arid shrub types : annual progress report : 1981 results - United States. Bureau of Land Management. (Wyoming Agricultural Experiment Station, 1982)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1906)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1912)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1913)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1921)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1922)

Philosophia botanica - Linné, Carl von, 1707 -1778 (P. Marin, 1792)

Philosophia botanica : in qua explicantur fundamenta botanica cum definitionibus partium, exemplis terminorum, observationibus rariorum, adjectis figuris aeneis - Linné, Carl von, 1707 -1778 (apud Godofr. Kiesewetter, 1751)

Philosophia botanica : in qua explicantur fundamenta botanica cum definitionibus partium, exemplis terminorum, observationibus rariorum, adiectis figuris aeneis - Linné, Carl von, 1707 -1778 (Typis Joannis Thomae Trattner, 1755)

Philosophia botanica, in qua explicantur fundamenta botanica cum definitionibus partium, exemplis terminorum, observationibus rariorum, adjectis figuris aeneis - Linné, Carl von, 1707 -1778 (Typis J.T. Trattner, 1763)

Philosophia botanica in qua explicantur fundmenta botanica cum definitionibus partium, exemplis terminorum observationibus rariorum. Adiectis figuris aeneis - Linné, Carl von, 1707 -1778 (C.F. Himburgi, 1780)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1815)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1820)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1823)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1825)

The Philosophical magazine : comprehending the various branches of science, the liberal and fine arts, geology, agriculture, manufactures and commerce (Richard Taylor and Co, 1799)

The Philosophical magazine : or Annals of chemistry, mathematics, astronomy, natural history and general science (Richard Taylor and Co, 1827)

The Philosophical magazine : or Annals of chemistry, mathematics, astronomy, natural history and general science (Richard Taylor and Co, 1830)

The Philosophical magazine : or Annals of chemistry, mathematics, astronomy, natural history and general science (Richard Taylor and Co, 1831)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1771)

The philosophy of zoology, or, A general view of the structure, functions, and classification of animals - Fleming, John, 1785 -1857 (Hurst, Robinson & Co, 1822)

Phosphorus in butter - Cusick, James Thomas, 1882 - (1920)

Photo-micrographs and how to make them - Sternberg, George Miller, 1838 -1915 (J. R. Osgood and company, 1883)

Phylogeny of the Pelecypoda : the Aviculidae and their allies - Jackson, Robert Tracy, 1861 -1948 (Boston Society of Natural History, 1890)

Physica sacra - Scheuchzer, Johann Jakob, 1672 -1733 (Christian Ulrich Wagner], 1731)

The physical geography of the sea meteorology - Maury, Matthew Fontaine, 1806 -1873 (T. Nelson, 1873)

The physiography and geology of the coastal plain province of Virginia - Clark, William Bullock, 1860 -1917 (University of Virginia, 1912)

Physiologie - Richet, Charles Robert, 1850 -1935 (Alcan, 1893)

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)

Physis - Sociedad Argentina de Ciencias Naturales. (Asociación Argentina de Ciencias Naturales [etc.], 1915)

Physis - Sociedad Argentina de Ciencias Naturales. (Asociación Argentina de Ciencias Naturales [etc.], 1918)

Phytanthoza iconographia, sive, Conspectus aliquot millium : tam indigenarum quam exoticarum, ex quatuor mundi partibus longâ annorum serie indefesoque studio - Weinmann, Johann Wilhelm, 1683 -1741 (Per Hieronymum Lentzium, 1739)

Phyto-edaphic communities of the Upper Rio Puerco Watershed, New Mexico - Francis, Richard E. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1986)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1947)

Phytopinax, seu, Enumeratio plantarum ab herbariis nostro seculo descriptarum :cum earum differentiis : cui plurimarum hactenus ab iisdem non descriptarum succinctae descriptiones & denominationes accessere : additis aliquot hactenus non sculptarum plantarum viuis iconibus - Bauhin, Caspar, 1560 -1624 (Per Sebastianum Henricpetri, 1596)

A pictorial atlas of fossil remains : consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology" - Mantell, Gideon Algernon, 1790 -1852 (H.G. Bohn, 1850)

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

The plankton of the Illinois river, 1894-1899, with introductory notes upon the hydrography of the Illinois river and its basin - Kofoid, Charles A. (Charles Atwood), 1865 -1947 (1903)

Plant a victory garden this year, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Powell Seed Store, 1943)

Plant associations of region two : potential plant communities of Wyoming, South Dakota, Nebraska, Colorado, and Kansas - Johnston, Barry C. (USDA Forest Service, Rocky Mountain Region, 1987)

Plant associations of the Crooked River National Grassland - United States. Forest Service. Pacific Northwest Region. (USDA, Forest Service, Pacific Northwest Region, 1983)

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

Plant lists from the North Pacific Exploring Expedition - Wright, Charles, 1811 -1885 (1853)

Plantae Wilsonianae :an enumeration of the woody plants collected in western China for the Arnold arboretum of Harvard university during the years 1907, 1908, and 1910 - Sargent, Charles Sprague, 1841 -1927 (The University press, 1917)

Plantarum rariorum horti caesarei Schoenbrunnensis descriptiones et icones - Jacquin, Nikolaus Joseph, Freiherr von, 1727 -1817 (Apud C. F. Wappler, 1797)

Plantarum, seu, Stirpium historia - L'Obel, Matthias de, 1538 -1616 (Ex officina Christophori Plantini, 1576)

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

Plants for better gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Littlefield-Wyman Nurseries, 1948)

Plants of the U.S. Military Academy, West Point, New York - Barringer, Kerry Alan (Brooklyn Botanic Garden, 1990)

Pleiocene fossils of South Carolina : containing descriptions and figures of the Polyparia, Echinodermata and Mollusca - Holmes, F. S. (Francis Simmons), 1815 -1882 (Russell & Jones, 1857)

Pleiocene fossils of South Carolina : containing descriptions and figures of the Polyparia, Echinodermata and Mollusca - Holmes, F. S. (Francis Simmons), 1815 -1882 (Russell & Jones, 1860)

The Pleistocene deposits of Sankoty Head, Nantucket, and their fossils - Cushman, Joseph A. (Joseph Augustine), 1881 -1949 (1906)

Pleistocene deposits of South Carolina : with an especial attempt at ascertaining what must have been the environmental conditions under which the Pleistocene Mollusca of the state lived / by Griffith Thompson Pugh - Pugh, Griffith Thompson. (1905)

Poems on conchology and botany : with plates and notes - Hoare, Sarah, 1777 -1856 (Simpkin & Marshall, 1831)

The poetical language of flowers : or, The pilgrimage of love - Miller, Thomas, 1807 -1874 (J.C. Riker, 1848)

"Pola" expedition: Mollusks. [5 works on mollusks resulting from investigations on voyages of the S.M. Schiff "Pola", 1890-1898] (K.K. Hof- und Staatsdruckerei, 1896)

Popular British conchology. A familiar history of the molluscs inhabiting the British Isles - Sowerby, George Brettingham, 1788 -1854 (Lovell Reeve, 1854)

Popular British entomology; containing a familiar and technical description of the insects most common to the localities of the British Isles - Catlow, Maria E. (Reeve and Co, 1852)

Popular conchology : or, The shell cabinet arranged: being an introduction to the modern system of conchology, with a sketch of the natural history of the animals, an account of the formation of the shells, and a complete descriptive list of the families and genera - Catlow, Agnes, 1807? -1889 (Longman, Brown, Green, and Longmans, 1843)

Popular garden botany; containing a familiar and scientific description of most of the hardy and half-hardy plants introduced into the flower garden - Catlow, Agnes, 1807? -1889 (L. Reeve, 1855)

A popular history of the Mollusca; comprising a familiar account of their classification, instincts and habits, and of the growth and distinguishing characters of their shells - Roberts, Mary, 1788 -1864 (Reeve and Benham, 1851)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1913)

The porifera and coelentera - Bourne, Gilbert C. (Gilbert Charles), 1861 -1933 (Adam & Charles Black, 1900)

Portugal nos mares; ensaios de critica, historia e geographia - Martins, Francisco De Assis De Oliveira. (Parceria A. M. Pereira, 1924)

Post-Pleiocene fossils of South-Carolina - Holmes, F. S. (Francis Simmons), 1815 -1882 (Russell & Jones, 1860)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1967)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1977)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 2003)

Power farming - Olney, Raymond, 1885 - (M. Rumely company, 1913)

Pozsonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei - Verein für natur- und heilkunde, Pressburg (1894)

Practical farming; a treatise on present farming conditions and how to improve them - Allerton, Samuel Waters, 1828 - (Rand, McNally & company, 1907)