Contributions from the Botanical Laboratory - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1892)

Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania - University of Pennsylvania. Botanical Laboratory. ([s.n, 1934)

Contributions from the Botanical Laboratory of the University of Pennsylvania - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1898)

Contributions from the Botanical Laboratory of the University of Pennsylvania - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1911)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1930)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1945)

Contributions from the Herbarium of Columbia College - Columbia College (New York, N.Y.). Herbarium. (Columbia College, 1886)

Contributions from the New South Wales National Herbarium - New South Wales National Herbarium. (V.C.N. Blight, Govt. Printer, 1961)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1902)

Contributions from the Osborn Botanical Laboratory - Yale University. Osborn Botanical Laboratory (Osborn Botanical Laboratory, Yale University, 1923)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1919)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 2001)

Contributions to the botany of Vermont - Middlebury College. (Botanical Dept., University of Vermont, 1898)

Contributions to the history of North American ornithology - Jackson, Jerome A (Nuttall Ornithological Club, 2010)

Contributions to the knowledge of the life history of Pinus with special reference to sporogenesis, the development of the gametophytes and fertilization - Ferguson, Margaret Clay, 1863 - (The Academy, 1904)

Contributions toward a monograph of the scolytid beetles - Hopkins, A. D. (Andrew Delmar), 1857 -1948 (Govt. print. off, 1909)

Control of the gipsy moth by forest management : part 1 : the gipsy moth in woods - Clement, George Edwards, 1877 - (U.S. Dept. of Agriculture, 1917)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1974)

Correspondence : Parry (Charles Christopher) and Engelmann (George), 1851-1884 - Engelmann, George, 1809 -1884 (1860)

Correspondence : Parry (Charles Christopher) and Engelmann (George), 1851-1884 - Engelmann, George, 1809 -1884 (1863)

Correspondence : Purkyně (Emanuel) and Engelmann (George), 1875-1881 - Purkyně, Emanuel, 1831 -1882 (1875)

Cryptogamie. Mycologie - Laboratoire de cryptogamie, Paris (Laboratoire de cryptogamie, 1993)

The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1923)

Cultures of Uredineae 1899-1921 - Arthur, Joseph Charles, 1850 -1942 (1921)

Current Northeast paleoethnobotany - New York State Museum. (University of the State of New York, State Education Dept, 2008)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1909)

Cyclopedia of American horticulture : comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1906)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Doubleday, Page & Company, 1906)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1900)

D. C. L. Willdenow ... Enumeratio Plantarum Horti Regii Botanici Berolinensis, continens descriptiones omnium Vegetabilium in Horto dicto cultorum - Willdenow, Karl Ludwig, 1765 -1812 (1809)

D. Hill's catalogue of evergreens - Hill, D. Nursery Company. (The Company, 1906)

Danish fungi as represented in the herbarium of E. Rostrup - Lind, Jens Vilhelm August, 1874 - (Gyldendalske Boghandel-Nordisk Forlag, 1913)

Danish fungi as represented in the herbarium of E. Rostrup - Lind, Jens Vilhelm August, 1874 - (Gyldendalske boghandel, 1913)

Darstellung vorzüglicher ausländischer Baeume und Gestraeuche welche in Deutschland im Freien ausdaufern - Kerner, Johann Simon, 1755 -1830 (In der J. G. Cottaischen Buchhandlung, 1796)

de han lin ye ming ci - Beijing lin xue yuan. 北京林学院 (ke xue chu ban she, 1958)

Deciduous trees, flowering shrubs and evergreens [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muller-Sealey Co., Inc, 1929)

Dedication papers : scientific papers presented at the dedication of the laboratory building and plant houses, April 19-21, 1917 - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1918)

Denkschriften der Kaiserlichen Akademie der Wissenschaften / Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (Aus der Kaiserlich-Königlichen Hof- und Staatsdruckerei, 1852)

Denkschriften der Kaiserlichen Akademie der Wissenschaften / Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (Aus der Kaiserlich-Königlichen Hof- und Staatsdruckerei, 1867)

Denkschriften der Kaiserlichen Akademie der Wissenschaften / Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (Aus der Kaiserlich-Königlichen Hof- und Staatsdruckerei, 1899)

Denkschriften der Kaiserlichen Akademie der Wissenschaften / Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (Aus der Kaiserlich-Königlichen Hof- und Staatsdruckerei, 1900)

Department circular - Massachusetts. Dept. of Agriculture. (1918)

Description des principaux parcs et jardins de l'Europe : avec des remarques sur le jardinage et les plantations : ouvrage enrichi d'estampes = Bildliche und beschreibende Darstellung der vorzüglichsten Natur und Kunstgärten in Europa : mit Bemerkungen über Gartenkunst und Anpflanzungen : aus dem Französischen - Schindelmayer, Karl Robert, ca 1769 -1839 (s.n.], 1812)

A description of the genus Pinus :illustrated with figures, directions relative to the cultivation, and remarks on the uses of the several species - Don, David, 1799 -1841 (J. White, 1803)

A description of the genus Pinus :illustrated with figures, directions relative to the cultivation, and remarks on the uses of the several species - Don, David, 1799 -1841 (J. White, 1824)

Descriptions of and notes on North and Central American species of Argyrotaenia, with the description of a new genus (Lepidoptera, Tortricidae) - Obraztsov, Nikolaus S., 1906 - (American Museum of Natural History, 1961)

Descriptions of new species of Curculionites of North America, with observations on some of the species already known, &c - Say, Thomas, 1787 -1834 (1831)

Descriptions of new species of fungi - Peck, Charles H. (Charles Horton), 1833 -1917 (Buffalo Society of Natural Sciences, 1890)

Descriptive catalog of choice hardy trees, vines, shrubs, evergreens, roses, perennials, fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Co, 1917)

Descriptive catalog of choice hardy trees, vines, shrubs, evergreens, roses, perennials, fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Co, 1918)

Descriptive catalogue - American Nursery Company. (American Nursery Company, 1918)

Descriptive catalogue of choice hardy trees, vines, shrubs, evergreens, roses, perennials, fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Morris Nursery Co, 1916)

Descriptive catalogue of fruit and ornamental trees : evergreens, shrubs, roses, perennials plants, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Brother Company, 1917)

Descriptive catalogue of fruit and ornamental trees : evergreens, shrubs, roses, perennials plants, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Brother Company, 1916)

Descriptive catalogue of fruit and ornamental trees : evergreens, shrubs, roses, perennials plants, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Brother Company, 1914)

Descriptive catalogue of fruit and ornamental trees : evergreens, shrubs, roses, perennials plants, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Brother Company, 1913)

Descriptive catalogue of fruit and ornamental trees : evergreens, shrubs, roses, perennials plants, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Brother Company, 1919)

Descriptive catalogue of Reading Nursery : with descriptions of hardy ornamental deciduous and evergreen trees, shrubs, and trailing vines, herbaceous perennial plants (a specialty here) and large and small fruits - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Reading Nursery, 1886)

Descriptive catalogue of selecte deciduous and evergreen trees, shrubs, vines, roses and hardy plants - Kelsey, Frederick Wallace, 1850 -1935 (Fred'k W. Kelsey, 1897)

Descriptive catalogue of selected hardy trees, shrubs, vines, roses, hardy plants and choice fruits - Kelsey, Frederick Wallace, 1850 -1935 (Fred'k W. Kelsey, 1900)

Desecriptive catalogue of choice hardy trees, evergreens, shrubs, roses, vines, hardy plants, and best fruits - Kelsey, Frederick Wallace, 1850 -1935 (Fred'k W. Kelsey, 1899)

Desecriptive catalogue of choice trees, hardy shrubs, roses, vines, and hardy plants - Kelsey, Frederick Wallace, 1850 -1935 (Fred'k W. Kelsey, 1898)

Destructive insects affecting Ohio shade and forest trees - Houser, John S. (1918)

Deutsche Garten-Zeitung - Gesellschaft des Gartenfreunde Berlins. (Hof-Verlags-Buchhandlung Beuckert & Radetzki, 1886)

The development of British forestry - Forbes, A. C. (E. Arnold, 1910)

The development of British forestry - Forbes, Arthur C., 1866 - (E. Arnold, 1910)

A dictionary of English names of plants applied in England and among English-speaking people to cultivated and wild plants, trees, and shrubs - Miller, William. (J. Murray, 1884)

Dictionary of German and English forest-terms - Philipp, Karl. (J. Neumann, 1900)

Dictionary of German and English forestterms - Philipp, Karl (J. Neumann, 1900)

A dictionary of plant names - Hollandsche Maatschappij der Wetenschappen (M. Nijhoff, 1911)

Dictionnaire classique d'histoire naturelle - Bory de Saint-Vincent, M. (Jean Baptiste Geneviève Marcellin), 1778 -1846 (Rey et Gravier, Libraries-Editeurs, Auai des Augustins, no. 55; Baudouin Frèrer, Libraries-Editeurs, Imprimeurs de la société D'Histoire Naturelle, Rue de Vaugirard, no. 36, 1828)

Dictionnaire classique des sciences naturelles : présentant la définition, l'analyse et l'histoire de tous les êtres qui composent les trois règnes, leurs application générale aux arts, à l'agriculture, à la médicine, à l'économie domestique, etc - Bory de Saint-Vincent, M. (Jean Baptiste Geneviève Marcellin), 1778 -1846 (Meline, Cans et Ce, 1842)

Dictionnaire classique des sciences naturelles : présentant la définition, l'analyse et l'histoire de tous les êtres qui composent les trois règnes, leurs application générale aux arts, à l'agriculture, à la médicine, à l'économie domestique, etc - Bory de Saint-Vincent, M. (Jean Baptiste Geneviève Marcellin), 1778 -1846 (Meline, Cans et Ce, 1853)

Dictionnaire des jardiniers, contenant les méthodes les plus sûres et les plus modernes pour cultiver et améliorer les jardins potagers, à fruits, à fleurs et les pépinieres ... et dans lequel on donne des préceptes pour multiplier et faire prospérer tous les objets soumis à l'agriculture, et la maniere d'employer toutes sortes de bois de charpente. Ouvrage traduit de l'anglois, sur la huitieme edition de Philippe Miller. Par une société de gens de lettres ... - Miller, Philip, 1691 -1771 (Guillot, 1785)

Dictionnaire pittoresque d'histoire naturelle et des phénomènes de la nature - Gerbe, Zéphirin, 1810 -1890

Dictionnaire universel d'histoire naturelle ... - Audouin, Jean Victor, 1797 -1841 (Au bureau principal des ©♭diteurs, 1841)

Dictionnaire universel d'histoire naturelle : résumant et complétant tous les faits présentés par les encyclopédies, les anciens dictionnaires scientifiques, les Oeuvres complètes de Buffon, et les meilleurs traités spéciaux sur les diverses branches des sciences nautrelles ; donnant la description des etres et des divers phénomènes de la nature, l'étymologie et la définition des noms scientifiques, et les principales applications des corps organiques et inorganiques à l'agriculture, à la médecine, aux arts industriels, etc - Martinet, L., (Chez les editeurs MM. Renard, Martinet et cie, rue et Hotel Mignon, 2 (quartier de l'École-de-Médecine) ; et chez Langlois et Leclercq, rue de la Harpe, 81 ; Victor Masson, Place de l'Ecole-de-Médecin, 1847)

Dictionnaire universel d'histoire naturelle résumant et complétant tous les faits présentés par les encyclopédies,... - Orbigny, Charles d', 1806 -1876 (L. Houssiaux et Cie, 1861)

Directory of Wetlands of International Importance (1987)

Directory of Wetlands of International Importance (1990)

A discussion of Australian forestry : with special references to forestry in Western Australia, the necessity of an Australian forest policy, and notices of organised forestry in other parts of the world - Hutchins, D. E. (David Ernest), 1850 -1920 (F. W. Simpson, government printer, 1916)

A disease of pines caused by Cronartium pyriforme - Hedgcock, George G. (George Grant), 1863 -1946 (U.S. Dept. of Agriculture, 1915)

Diseases of coniferous trees - United States. Forest Service. (1912)

Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1922 - United States. Plant Disease Survey. (Plant Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1923)

Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1924 - United States. Office of Plant Disease Survey; Pathological Collections. (Office of Plant Disease Survey and Pathological Collections, Bureau of Plant Industry, United States Department of Agriculture, 1925)

Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1921 - United States. Plant Disease Survey. (Plant Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1922)

Diseases of plants in the United States in 1936 - Wood, Jessie I. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1937)

Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae - Tubeuf, Carl, Freiherr von, 1862 -1941 (Longmans, Green & co, 1897)