Catalogue of the flowering plants and ferns of Connecticut growing without cultivation - Graves, Charles Burr, 1860 -1936 (Printed for the State Geological and Natural History Survey, 1910)

Catalogue of the flowering plants and ferns of Connecticut growing without cultivation - Graves, Charles Burr, 1860 -1936 (Printed for the State Geological and Natural History SUrvey, 1910)

Catalogue of the flowering plants and ferns of Connecticut growing without cultivation - Harger, Edgar Burton, 1867 - (Printed for the State Geological and Natural History Survey, 1910)

A catalogue of the flowering plants and of the ferns and their allies indigenous to Indiana - Coulter, Stanley, 1855 -1943 (1900)

Catalogue of the photographic collection at the Forest research institute, Dehra Dun, India. (Up to date 1st November 1911) - Forest Research Institute (Dehra Dun, India) (Supt. govt. printing, India, 1912)

A Catskill flora and economic botany - Brooks, Karl L. (University of the State of New York, State Education Dept, 1979)

A Catskill flora and economic botany - Brooks, Karl L. (University of the State of New York, State Education Dept, 1980)

A century of progress in the natural sciences, 1853-1953 - California Academy of Sciences (1955)

Certified forest tree seed : price list : August 15, 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Company, 1928)

The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project - Illinois. Dept. of Energy; Natural Resources. (Ill. Dept. of Energy and Natural Resources, 1994)

A check list of Alaskan fungi - Cash, Edith K. (Edith Katherine), 1890 -1992 (Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1953)

Check list of diseases of economic plants in the United States - Anderson, P. J. (Paul Johnson), 1884 -1971 (U.S. Dept. of Agriculture, 1926)

A check list of plant rusts in Canada - Canada. Department of Agriculture. (Canada Dept. of Agriculture, 1956)

Check list of the forest trees of the United States : their names and ranges - Roth, Filibert, 1858 -1925 (Dept. of Agriculture, Forestry Division, 1898)

Check list of the forest trees of the United States : their names and ranges - Sudworth, George B. (George Bishop), 1864 -1927 (Dept. of Agriculture, Forestry Division, 1898)

Check list of the forest trees of the United States, their names and ranges - Sudworth, George B. (George Bishop), 1864 -1927 (Govt. Print. Off, 1898)

Check list of the forest trees of the United States, their names and ranges - Sudworth, George B. (George Bishop), 1864 -1927 (U.S. Govt. Print. Off, 1927)

A checklist of New York State plants - Mitchell, Richard S., 1938 - (University of the State of New York, State Education Dept, 1986)

Checklist of plants of the Ottawa District - Gillett, John M. (John Montague), 1918 -2014 (1958)

Checklist of vascular plants of the Ottawa-Hull region, Canada = Liste des plantes vasculaires de la râegion d'Ottawa-Hull, Canada - Gillett, John M. (John Montague), 1918 -2014 (National Museum of Natural Sciences, National Museums of Canada, 1978)

Children's gardens for school and home; a manual of cooperative gardening - Miller, Louise Klein. (D. Appleton, 1904)

Children's gardens for school and home : a manual of cooperative gardening - Miller, Louise Klein. (Appleton, 1904)

Circular / U.S. Fish and Wildlife Service - U.S. Fish; Wildlife Service (U.S. G.P.O.,, 1953)

Circular / U.S. Fish and Wildlife Service - U.S. Fish; Wildlife Service (U.S. G.P.O.,, 1965)

Classification of wetlands and deepwater habitats of the United States - Biological Services Program (U.S.) (Fish and Wildlife Service, U.S. Dept. of the Interior, 1979)

The climax forest of Isle Royale - Cooper, William Skinner, 1884 -1978 (1913)

Coccinellidae of western Canada and Alaska with analyses of the transmontane zoogeographic relationships between the fauna of British Columbia and Alberta : (Insecta : Coleoptera : Coccinellidae) - Belicek, Joseph (1976)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1966)

Collection of pamphlets on mollusks (1881)

College botany; structure, physiology and economics of plants - Cook, Melville Thurston, 1869 -1952 (J. B. Lippincott Company, 1920)

A college text-book of botany : being an enlargement of the author's "Elementary botany," - Atkinson, George Francis, 1854 -1918 (Henry Holt and Company, 1905)

A college text-book of Botany, being an enlargement of the author's "Elementary Botany." - Atkinson, George Francis, 1854 -1918 (Holt, 1905)

A college text-book of botany; being an enlargement of the author's "Elementary botany." - Atkinson, George Francis, 1854 -1918 (Holt, 1908)

A college textbook of pharmaceutical botany : with pharmaceutical and medical applications, especially adapted for the use of students of pharmacy and economic botany and as a reference for pharmacists, chemists and students in structural and systematic botany - Youngken, Heber W. (Heber Wilkinson), 1885 -1963 (P. Blakiston's Son, 1918)

Common and scientific names of weeds in Canada = Noms populaires et scientifiques des plantes nuisibles du Canada - Darbyshire, S. J. (Agriculture and Agri-Food Canada = Agriculture et agroalimentaire Canada, 2000)

Common trees of Alaska - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, Alaska Region, 1999)

Common trees of New York - Illick, Joseph S. (Joseph Simon), 1884 -1967 (American Tree Association, 1927)

Common trees of Ohio : a handy pocket manual of the common and introduced trees of Ohio - Illick, Joseph S. (Joseph Simon), 1884 -1967 (The American Tree Association, 1927)

Compendium of plant disease and decay fungi in Canada, 1960-1980 - Ginns, J. H. (James Herbert) (Research Branch, Agriculture Canada, 1986)

The complete garden - Cooper, Gordon D. (Garden City Publishing co, 1921)

The complete garden - Cooper, Gordon D. (Doubleday, Page, 1921)

Comprehensive plan for the Illinois Nature Preserves System - Illinois. Dept. of Conservation. (Illinois Nature Preserves Commission, 1972)

Concord area trees and shrubs - Angelo, Ray, 1948 - (Concord Field Station, Museum of Comparative Zoology, Harvard University, 1990)

Conditions forestières de la Nouvelle-Écosse - Canada. Commission of Conservation. ([s.n.], 1912)

Conditions forestières de la Nouvelle-Écosse - Canada. Commission of Conservation. (Commission de la conservation, 1912)

Congrès international d'entomologie : [proceedings] (Hayez, 1910)

Congrès international d'entomologie : [proceedings] (Hayez, 1980)

Coniferous trees for profit & ornament : being a concise description of each species and variety, with the most recently approved nomenclature, list of synonyms, and best methods of cultivation - Webster, A. D. (Angus Duncan), 1855 -1931 (Constable and Co, 1918)

The conifers and taxads of Japan. Issued December 30, 1916 - Wilson, Ernest Henry, 1876 -1930 (University Press, 1916)

Constructed wetlands for stormwater management : a review - Ontario. Ministry of the Environment. (Mark E. Taylor & Associates, 1992)

The contrast between climax and seral types of vegetation - McGinnis, Helen Anastasia. (1918)

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 Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1907)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1911)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1933)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1940)

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

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1955)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1954)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1965)

Contributions from the Hull Botanical Laboratory - Hull Botanical Laboratory. (University of Chicago Press, 1919)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1921)

Contributions from the Osborn Botanical Laboratory - Yale University. Osborn Botanical Laboratory (Osborn Botanical Laboratory, Yale University, 1916)

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

Contributions of the American Entomological Institute - American Entomological Institute. (American Entomological Institute], 1970)

Contributions to Canadian biology and fisheries - Biological Board of Canada. (1901)

Contributions to Canadian biology : being studies from the Marine Biological Station of Canada - Canada. Department of Marine; Fisheries. (s.n.], 1901)

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

Contributions to the flora of central New York, I - Smith, Stanley J. (Stanley Jay), 1915 - (University of the State of New York, 1945)

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)

Costs and threats of invasive species to Alberta's natural resources - Alberta. Alberta Sustainable Resource Development. (Alberta Sustainable Resource Development, 2004)

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)

Decayed wood identification of bearing trees of public land surveys - Drahn, Richard. (U.S. Department of Agriculture, Forest Service, Eastern Region, 1981)

Dendrologie; Bäume, Sträucher und Halbsträucher, welche in Mittel- und Nord- Europa im Freien kultivirt werden - Koch, Karl, 1809 -1879 (F. Enke, 1869)

A descriptive catalogue of useful fiber plants of the world, including the structural and economic classifications of fibers - Dodge, Charles Richards, 1847 -1918 (Govt. print. off, 1897)

Determining replacement value of trees and shrubs in Alberta - Alberta. Alberta Agriculture. (Alberta Agriculture, 1985)

Deutsche entomologische Zeitschrift - Deutsche Entomologische Gesellschaft. (Nicolai'sche Verlags-Buchandlung, 1916)

Development and transmission of Protostrongylus boughtoni (Nematoda: Metastrongyloidea), a lungworm of the snowshoe hare (Lepus americanus) - Kralka, Robert A. (University of Alberta, Dept. of Zoology, 1983)

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

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

A digitized systematic classification for ecosystems : with an illustrated summary of the natural vegetation of North America - Lowe, Charles H. (Forest Service, Rocky Mountain Forest and Range Experiment Station, 1980)

Directory of Wetlands of International Importance (1987)

Directory of Wetlands of International Importance (1990)

Disco guaranteed seeds : 1922 fifteenth annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Dakota Improved Seed Co, 1922)

Disco guaranteed seeds : 1924, seventh annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Dakota Improved Seed Co, 1924)

Disco guaranteed seeds : 1925, eighteenth annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Dakota Improved Seed Co, 1925)

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

Diseases of forest and shade trees, ornamental and miscellaneous plants in the United States in 1927 - Martin, G. Hamilton. (Office of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1928)

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 1933 - Humphrey, H. B. (Harry Baker), 1873 -1955 (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture], 1935)

Diseases of widely planted forest trees - International Union of Forestry Research Organizations. Working Group on International Cooperation in Forest Disease Research. Section 24: Forest Protection. (U.S. Dept. of Agriculture, Forest Service, 1964)

Distribution, abundance and habitat selection of northern pygmy and barred owls along the Eastern Slopes of the Alberta Rocky Mountains - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Resource Data and Species at Risk Section, 2004)

The distribution of important forest trees of the United States - Munns, E. N. (Edward Norfolk), 1889 -1972 (U.S. Dept. of Agriculture, 1938)

Distribution of plant-parasitic nematodes associated with forest trees of the world - Southeastern Forest Experiment Station (Asheville, N.C.) (Southeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1967)

The distribution of vegetation in the United States, as related to climatic conditions - Livingston, Burton E. (Burton Edward), 1875 -1948 (Carnegie institution of Washington, 1921)

The distribution of vegetation in the United States, as related to climatic conditions - Shreve, Forrest, 1878 -1950 (Carnegie institution of Washington, 1921)

Dow Nursery Co., 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Dow Nursery Co, 1938)

Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz - Rabenhorst, Ludwig, 1806 -1881 (E. Kummer, 1903)

Drainage potential in Alberta : an integrated study : summary report - Alberta. Alberta Agriculture. (Alberta Water Resources Commission; Alberta Agriculture; Alberta Environment; Alberta Forestry, Lands and Wildlife, 1987)

The drug plants of Illinois - Tehon, L. R. (Leo Roy), 1895 -1954 (Natural History Survey Division, 1951)

The Dunesland heritage of Illinois - Ross, Herbert H. (Herbert Holdsworth), 1908 -1978 (1963)

Early corn, hardy alfalfa, improved field and garden seeds : fourteenth annual [catalog], 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Dakota Improved Seed Co, 1921)

The earthworms (lumbricidae and sparganophilidae) of Ontario - Royal Ontario Museum. (Royal Ontario Museum, 1977)