The practical study of malaria and other blood parasites - Christophers, S. R. (Samuel Rickard), 1873 -1978 (Published for the University Press of Liverpool by Williams and Norgate, 1908)

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)

Practices for protecting and enhancing fish and wildlife on coal surface-mined land in the southcentral U.S - U.S. Fish; Wildlife Service. Office of Biological Services. (U.S. Department of the Interior, Fish and Wildlife Service, Office of Biological Services, 1983)

Praterflora. Beschreibung der im K.K. Prater und in der Brigittenau ausserhalb der Gärten wildwachsenden und angebauten Pflanzen - Bayer, Johann Nepomuk, 1802 -1870 (Wilhelm Braumüller, 1869)

Precis Analytique des Travaux de l'Academie des Sciences, Belles-Lettres et Arts de Rouen - Académie des sciences, belles lettres & arts de Rouen (1859)

Précis de microscopie : technique, expérimentation, diagnostic - Langeron, Maurice, 1874 -1950 (Masson, 1913)

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)

Preliminary catalogue of the flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (1892)

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 list metropolitan reservations - Manning, Warren H. (Warren Henry), 1860 -1938 (Olmsted, Olmsted and Eliot, 1895)

Preliminary list of plants of the Metropolitan Park Reservations, 1895 - Massachusetts. Metropolitan Park Commission. (1895)

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)

Preliminary report of explorations in Nebraska and Dakota, in the years 1855-'56-'57 - Warren, Gouverneur Kemble, 1830 -1882 (Govt. Print. Off, 1875)

A preliminary report on the biology of Harding County, northwestern South Dakota - Visher, Stephen Sargent, 1887 -1967 (State Publishing Co, 1914)

A preliminary study of the distribution, food and reproductive capacity of some fresh-water amphipods - Embody, George Charles, 1876 -1939 (1912)

A preliminary verified list of plant collectors in Mexico - Knobloch, Irving W. (Irving William), 1907 - (Harold N. Moldenke and Alma L. Moldenke, 1983)

Preservation of natural features and scenic views in New York City - Clarke & Rapuano. (The Department, 1974)

Preussens Flora, oder, Systematisches Verzeichniss der in Preussen wildwachsenden Pflanzen, mit jeder Pflanze beigefügten Bemerkungen in ökonomischer, technologischer und medizinischer Hinsicht, nach einer das Aufsuchen der Pflanzen erleichternden und sicher leitenden Methode - Graff, Eberhard Gottlieb, 1780 -1841 (Beim Verfasser, 1809)

Price list, 1952-1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (North State Nursery Co, 1952)

Price list 1953 : evergreens, shade trees, flowering shrubs, hedges, fruit trees, roses, vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Eisler Nurseries, 1953)

Price list effective December 10, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Terrell's Aquatic Farms & Nurseries, 1930)

Price list : February specials (prices net) - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Terrell's Aquatic Nurseries, 1940)

Prima lineae florae Herbipolensis - Lehmann, Johann Friedrich. (Nitribitt, 1809)

Primae lineae systematis naturæ : nexui naturali omnium evolutionique progressivae per nixus reascendentes superstructi - Gori͡aninov, Pavel Fedorovich, 1796 -1865 (Typis Karoli Krajanis, 1834)

Primitiae florae essequeboensis adjectis descriptionibus centum circiter stirpium novarum, observationibusque criticis - Meyer, G. F. W. (Georg Friedrich Wilhelm), 1782 -1856 (Sumptibus H. Dieterich, 1818)

Primitiae florae Salisburgensis, cum dissertatione praevia de discrimine plantarum ab animalibus - Schrank, Franz von Paula, 1747 -1835 (1792)

Principia botanica: or, A concise and easy introduction to the sexual botany of Linnaeus ... Arranged in a tabular form, under each class and order; and digested alphabetically under several generic distinctions. Together with three indexes ... Also a table of several vegetable drugs not in the indexes ... - Darwin, Robert Waring, 1724 -1816 (Printed and sold by M. Hage; [etc., etc.], 1810)

Principia botanica: or, a concise and easy introduction to the sexual botany of Linnaeus ... - Linné, Carl von, 1707 -1778 (Printed by Allin and co. and sold by G. G. J. and J. Robinson, London, 1787)

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)

Principles of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn, 1906)

The principles of botany, and of vegetable physiology - Willdenow, Karl Ludwig, 1765 -1812 (Printed at the University Press, for William Blackwood, 1805)

The principles of botany, and of vegetable physiology / translated from the German of D.C. Willdenow - Willdenow, Karl Ludwig, 1765 -1812 (Blackwood, 1811)

The principles of botany : as exemplified in the phanerogamia - Coultas, Harland, 1817 -1877 (King & Baird, printers, 1854)

The principles of botany, as exemplified in the phanerogamia - Coultas, Harland, 1817 -1877 (King & Baird, 1854)

Principles of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn & company, 1906)

Principles of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn & Company, 1906)

The principles of botany, structural, functional and systematic, condensed and immediately adapted to the use of students of medicine - Willshire, William Hughes 1816 -1899 (Hightley, 1840)

Principles of comparative physiology - Carpenter, William Benjamin, 1813 -1885 (John Churchill, 1854)

Principles of general and comparative physiology : intended as an introduction to the study of human physiology : and as a guide to the philosophical pursuit of natural history - Carpenter, William Benjamin, 1813 -1885 (John Churchill, 1839)

Principles of plant physiology - Raber, Oran, 1893 -1940 (The Macmillan Co, 1938)

Principles of scientific botany, or, Botany as an inductive science - Lankester, E. Ray Sir, (Edwin Ray), 1847 -1929 (Longman, Brown, Green, and Longmans, 1849)

Principles of scientific botany, or, Botany as an inductive science - Lankester, Edwin, 1814 -1874 (Printed for Longman, Brown, Green, and Longmans, 1849)

Principles of the anatomy and physiology of the vegetable cell - Mohl, Hugo von, 1805 -1872 (John Van Voorst, 1852)

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

Problems of lake biology ... - American Association for the Advancement of Science. (Pub. for the American Association for the Advancement of Science by the Science Press, 1939)

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 British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1972)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1871)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1889)

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, 1886)

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, 1887)

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, 1900)

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, 1883)

Proceedings - Cambridge Philosophical Society. Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1910)

Proceedings - Cambridge Philosophical Society. Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1913)

Proceedings - Cambridge Philosophical Society. Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1917)

Proceedings commemorative of the centennial anniversary of the first occupation of the hall of the society, November 21, 1889 - American Philosophical Society. (The society, 1890)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1870)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1872)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1880)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1884)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1887)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1902)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1905)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1911)

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, 1884)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1902)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1917)

Proceedings of the American Association for the Advancement of Science - American Association for the Advancement of Science. (s.n.], 1850)

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

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1887)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1890)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1894)

Proceedings of the Bath Natural History and Antiquarian Field Club - Bath Natural History; Antiquarian Field Club. (1867)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1913)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1916)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1953)

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, 1973)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1975)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1880)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1921)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1954)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1956)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1960)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1965)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1967)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1963)