Publication. Field Museum of Natural History. Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1940)

Publications of the Central States Forest Experiment Station, July 1927 through December 1949 - Central States Forest Experiment Station (Columbus, Ohio) (The Station, 1950)

The publications of the Pennsylvania chestnut tree blight commission, 1911-1913 - Pennsylvania. Chestnut Tree Blight Commission. (W. S. Ray, state printer, 1915)

Publications to January 1960 - Central States Forest Experiment Station (Columbus, Ohio) (The Station, 1960)

Pulp wood of Canada - Macoun, James Melville, 1862 -1920 (Dept. of Agriculture, 1904)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1987)

Quaker Hill Nurseries [catalog] : growers of fruit and ornamental trees, small fruits, roses, shrubs and hedging - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Quaker Hill Nurseries, 1923)

The Quarterly journal of science (J. Churchill and Sons, etc, 1865)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1960)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1962)

Quarterly report of the Pennsylvania Board of Agriculture - Pennsylvania. State Board of Agriculture. (Pennsylvania Board of Agriculture, 1888)

Queen Anne's county - Maryland Geological Survey. (The Johns Hopkins press, 1926)

Quercus alba, the veteran of the Ozarks - Lillibridge, William Otis, 1878 -1909 (A. C. McClurg & co, 1910)

Random notes on natural history (Southwick & Jencks, 1885)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1981)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1984)

A record of the fungi named by J.B. Ellis - United States. Bureau of Plant Industry, Soils,; Agricultural Engineering. (Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, U.S. Dept. of Agriculture, 1952)

Recueil de divers oiseaux étrangers et peu communs - Catesby, Mark, 1683 -1749 (Chez les Héritiers de Seligmann, 1768)

Recueil des mémoires et des travaux - Société botanique du Grand-Duché de Luxembourg. (La Société, 1897)

Red alder of the Pacific Northwest : its utilization, with notes on growth and management - Johnson, Herman M. (Herman Meserve), 1882 - (U.S. Dept. of Agriculture, 1926)

The red spider on the avocado - Moznette, G. F. (George Franklin), 1890 - (U.S. Dept. of Agriculture, 1922)

The reforestation of sand plains in Vermont - Howe, Clifton D. (Clifton Durant), 1874 - (1910)

Reis door Noord Amerika - Kalm, Pehr, 1716 -1779 (By J. van Schoonhoven en Comp. en G. van den Brink Janz, 1772)

Reise in das innere Nord-America in den Jahren 1832 bis 1834 - Wied, Maximilian, Prinz von, 1782 -1867 (Bei J. Hœlscher, 1839)

Reise in das innere Nord-America in den Jahren 1832 bis 1834 - Wied, Maximilian, Prinz von, 1782 -1867 (Bei J. Hœlscher, 1841)

Reisen in den Vereinigten Staaten, Canada und Mexico - Müller, J. W. von Baron (Johann Wilhelm) 1824 -1866 (F.A. Brockhaus, 1864)

The relation of insect defoliation to mortality in Connecticut forests - Stephens, George Robert, 1929 - (Connecticut Agricultural Experiment Station, 1971)

The relation of plant succession to crop production, a contribution to crop ecology - Waller, Adolph Edward, 1892 -1975 (The University, 1921)

Relative resistance of various hardwoods to injection with creosote - Teesdale, Clyde Harry. (U.S. Dept. of Agriculture, 1918)

Reliably hardy evergreens for fall planting : autumn 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1915)

Reliably hardy evergreens for fall planting : autumn 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1916)

Repertorium commentationum a societatibus litterariis editarum - Reuss, Jeremias David, 1750 -1837 (apud Henricum Dieterich, 1802)

Report - New York (State). Board of General Managers of the Exhibit of the State of New York at the World's Columbian Exposition. (J. B. Lyon, 1894)

Report for the years ... - Pennsylvania. Department of Forestry. (Harrisburg Pub. Co., state printer, 1904)

Report of an expedition down the Zuni and Colorado rivers - United States. Army. Corps of Topographical Engineers (R. Armstrong, public printer, 1853)

Report of botanical survey of southern and central Louisiana made during the year 1870 - Featherman, A. (Americus), 1822 - (Printed at the office of the Republican, 1871)

Report of marine borer conference - University of Miami. Marine Laboratory. (1953)

Report of the ... annual meeting of the Canadian Forestry Association - Canadian Forestry Association. (Government Printing Bureau, 1900)

Report of the Botanical Department of the New Jersey Agricultural College Experiment Station - New Jersey Agricultural Experiment Station. (The Station, 1901)

Report of the botanical exploration of southwestern Virginia during the season of 1892 - Small, John Kunkel, 1869 -1938 (1893)

Report of the Botanist - New York (State). State Botanist. (James B. Lyon, State Printer, 1867)

Report of the Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, Office of the Regents, 1868)

Report of the Botanist - Peck, Charles H. (Charles Horton), 1833 -1917 (University of the State of New York, Office of the Regents, 1878)

Report of the botanist - Connecticut Agricultural Experiment Station. (Connecticut Agricultural Experiment Station, 1903)