An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language - Stevens, George T. (George Thomas), 1832 -1921 (Dodd, Mead and company, 1910)

Illustrated key to the wild and commonly cultivated trees of the northeastern United States and adjacent Canada; based primarily upon leaf characters - Collins, J. Franklin (James Franklin), 1863 -1940 (Holt, 1912)

Illustrated key to the wild and commonly cultivated trees of the northeastern United States and adjacent Canada; based primarily upon leaf characters - Preston, Howard W. 1859 - (H. Holt and company, 1912)

Illustrated key to the wild and commonly cultivated trees of the northeastern United States and adjacent Canada based primarily upon leaf characters - Collins, J. Franklin (James Franklin), 1863 -1940 (McClelland and Goodchild, 1912)

Illustriertes Handbuch der Laubholzkunde; Charakteristik der in Mitteleuropa heimischen und im Freien angepflanzten angiospermen Gehölz-Arten und Formen mit Ausschluss der Bambuseen und Kakteen. Register - Schneider, Camillo, 1876 -1951 (G. Fischer, 1912)

Illustriertes Handbuch der Laubholzkunde :Charakteristik der in Mitteleuropa heimischen und im freien angepflanzten angiospermen Geho¨lz-Arten und Formen mit Ausschluss der Bambuseen und Kakteen - Schneider, Camillo, 1876 -1951 (G. Fischer, 1906)

Illustrirte Garten-Zeitung - Müller, Karl, 1818 -1899 (E. Schweizerbart, 1860)

Illustrirte Garten-Zeitung - Müller, Karl, 1818 -1899 (E. Schweizerbart, 1863)

Illustrirte Garten-Zeitung - Müller, Karl, 1818 -1899 (E. Schweizerbart, 1875)

The important timber trees of the United States, a manual of practical forestry, for the use fo foresters, students and laymen in forestry, lumbermen, farmers and other land-owners, and all who contemplate growing trees for economic purposes - Elliott, Simon Bolivar (H. Mifflin, 1912)

The important timber trees of the United States; a manual of practical forestry for the user of foresters, students and laymen in forestry, lumbermen, farmers and other land-owners, and all who contemplate growing trees for economic purposes - Elliott, Simon Bolivar (Houghton Mifflin Company, The Riverside Press Cambridge, 1912)

Imported Elm Leaf-Beetle (Galerucella Luteola Mull.) - United States. Bureau of Entomology. (United States. Dept. of Agriculture, Bureau of Entomology, 1908)

Impressions of seedlings - Coulson, John, d.1926. (1899)

Index bibliographique de l'Hortus Belgicus : Catalogue méthodique des plantes ornementales qui ont été décrites, figurées ou introduites en Belgique de 1830 à 1880 - Morren, Édouard, 1833 -1886 (1887)

Index of organisms and non-parasitic diseases in Plant disease reporter, supplements LXVII-LXXIII, 1929 - Van Meter, Mary G. (Office of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1929)

Index of organisms and non-parasitic diseases in Plant disease reporter, supplements LII-LVI, 1927 - Van Meter, Mary G. (Office of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1927)

Index of organisms and non-parasitic diseases in the Plant disease reporter, supplements 91-96, 1936 - United States. Division of Mycology; Disease Survey. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1936)

Index of organisms and non-parasitic diseases in the Plant disease reporter, supplements 112-119, 1939 - United States. Division of Mycology; Disease Survey. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1940)

Index of organisms and non-parasitic diseases in the Plant disease reporter, supplements 98-103, 1937 - United States. Division of Mycology; Disease Survey. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1937)

Index of organisms and non-parasitic diseases in the Plant disease reporter, supplements 121-128, 1940 - United States. Division of Mycology; Disease Survey. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1941)

Index Rafinesquianus : the plant names published by C. S. Rafinesque with reductions, and a consideration of his methods, objectives, and attainments - Merrill, Elmer D. (Elmer Drew), 1876 -1956 (Arnold Arboretum of Harvard University, 1949)

Index seminum in R. Horto Botanico Senensi anno ... collectorum - Università di Siena. Orto Botanico. (Typis Lazzeri, 1914)

Index seminum quae Institutus Dendrologicus Brunensis pro mutua commutationae offert ... - Mendelova zemědělská a lesnická univevzita v Brně. (Institutus Dendrologicus Brunensis, 1930)

An index to circulars 1 to 100 of the Bureau of Entomology - United States. Bureau of Entomology. (U.S. Dept. of Agriculture, Bureau of Entomology, 1911)

Index to Plant disease reporter supplements 173-178, 1948 - United States. Plant Disease Survey. (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, 1949)

Index to Plant disease reporter supplements 199-208, 1951 - United States. Plant Disease Survey. (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, 1952)

Index to Plant disease reporter supplements 231-235, 1955 - United States. Plant Disease Epidemics; Identification Section. (Plant Disease Epidemics and Identification Section, Agricultural Research Service, United States Department of Agriculture, 1956)

Indiana forest statistics, 1986 - North Central Forest Experiment Station (Saint Paul, Minn.) (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1988)

Indiana's forest resources and industries - Hutchison, O. Keith (Oliver Keith), 1917 - (U.S. Government Printing Office, 1956)

Indiana's timber industry–an assessment of timber product output and use, 1995 - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, North Central Research Station, 1998)

Indiana's timber resource, 1986 : an analysis - Spencer, John S. (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1990)

The influence of modern man on the vegetation of Yosemite Valley - Gibbens, Robert P. (University of California, Division of Agricultural Sciences, 1964)

Inpaws journal - Indiana Native Plant; Wildflower Society. (Indiana Native Plant and Wildflower Society, 2011)

Insect and disease report - Montana. Forestry Division. (Montana Dept. of Natural Resources and Conservation, Division of Forestry, 1976)

The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment - Theobald, Fred. V. (Frederick Vincent), 1868 -1930 (Published by the author, 1909)

The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment - Theobald, Fred. V. (Frederick Vincent), 1868 -1930 (Frederick V. Theobald, 1909)

The insect fauna of the genus Crataegus - Wellhouse, Walter Housley, 1890 - (1922)

The insect fauna of the genus Crataegus - Wellhouse, Walter Housley, 1890 - (s.n, 1922)

Insect galls of Springfield, Massachusetts, and vicinity - Stebbins, Fannie Adelle. (Springfield Museum of Natural History, 1909)

Insect life - United States. Division of Entomology. (G.P.O, 1888)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1889)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1891)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1890)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1893)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1895)

Insect life - United States. Bureau of Entomology. (Government Printing Office, 1897)

Insect notes for 1911 - Johannsen, O. A. (Oskar Augustus), 1870 -1961 (Maine Agricultural Experiment Station, 1911)

Insects : a guide to their collection, identification, preservation, and shipment - Stein, John D. (Rocky Mountain Forest and Range Experiment Station, 1976)

Insects affecting park and woodland trees - Felt, Ephraim Porter, 1868 -1943 (New York State Education Dept, 1905)

Insects galls of Springfield, Massachusetts, and vicinity - Stebbins, Fannie Adelle. (The Museum, 1909)

Insects of Eastern forests - United States. Department of Agriculture. (U.S. Forest Service ; for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1985)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1919)

The International Phytogeographic Excursion (I.P.E.) in America, 1913 - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Botany School, 1915)

International review of the science and practice of agriculture - International Institute of Agriculture. Bureau of Agricultural Intelligence; Plant Diseases. (International Institute of Agriculture, Bureau of Agricultural Intelligence and Plant Diseases, 1916)

Internationally dangerous forest tree diseases - International Union of Forest Research Organizations. Working Group on International Cooperation in Forest Disease Research. (U.S. Dept. of Agriculture, Forest Service, 1963)

Introduction to botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn, 1914)

An introduction to botany - Lindley, John, 1799 -1865 (Longman, Rees, Orme, Brown, Green and Longman, 1835)

An introduction to the embryology of angiosperms - Maheshwari, P. (Panchanan), 1904 -1966 (McGraw-Hill, 1950)

An introduction to the study of botany, including a treatise on vegetable physiology, and descriptions of the most common plants in the middle and northern states - Comstock, J. L. (John Lee), 1789 -1858 (Pratt, Woodford, Farmer & Brace, 1856)

An introduction to the study of fossils (plants and animals) - Shimer, Hervey Woodburn, 1872 -1965 (The Macmillan Company, 1914)

An introduction to the study of fossils (plants and animals) - Shimer, Hervey Woodburn, 1872 -1965 (The Macmillan Co, 1921)

An introduction to the study of landscape design - Hubbard, Theodora Kimball, 1887 -1935 (The Macmillan Company, 1917)

An introduction to the study of landscape design - Hubbard, Theodora Kimball, 1887 -1935 (The Macmillan Company, 1929)

An introduction to the study of landscape design - Hubbard, Theodora Kimball, 1887 -1935 (Macmillan, 1917)

Invertebrate conservation news - Amateur Entomologists' Society (Great Britain) (Amateur Entomologists' Society, 2007)

An investment in hardy New England grown nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.E. Wilson & Co. Inc, 1928)

Iowa bird life - Iowa Ornithologists' Union. (Iowa Ornithologists' Union, 1959)

Iowa bird life - Iowa Ornithologists' Union. (Iowa Ornithologists' Union, 1977)

Iowa bird life - Iowa Ornithologists' Union. (Iowa Ornithologists' Union, 1978)

Iowa bird life - Iowa Ornithologists' Union. (Iowa Ornithologists' Union, 1979)

Iowa bird life - Iowa Ornithologists' Union. (Iowa Ornithologists' Union, 1983)

Iowa bird life - Iowa Ornithologists' Union. (Iowa Ornithologists' Union, 2009)

Iowa Erysiphaceae - Anderson, Jacob Peter, 1874 -1953 (1907)

Iowa forest resources, 1974 - Spencer, John S. (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1980)

Iowa forest statistics - Central States Forest Experiment Station (Columbus, Ohio) (U. S. Dept. of Agriculture, Forest Service, Central States Forest Experiment Station, 1956)

Iowa parks - Pammel, L. H. (Louis Hermann), 1862 -1931 (1920)

Iowa parks. Conservation of Iowa historic, scenic and scientific areas. Also, a description of numerous areas suitable for public state parks, with reasons for their preservation. Report of the State board of conservation - Pammel, L. H. (Louis Hermann), 1862 -1931 (1920)

Isis, oder, Encyclopädische Zeitung von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1819)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1824)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1840)

Islands of green : natural heritage protection in Ontario - Hilts, Stewart G. (Stewart Garvie) (Ontario Heritage Foundation, 1986)

It's not a home until it's planted - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tiger Nurseries, Incorporated, 1929)

It's not a home until it's planted - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tiger Nurseries, Incorporated, 1930)

J. Van. Lindley Nursery Company - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. Van. Lindley Nursery Company, 1925)

Jahrbücher für wissenschaftliche Botanik - Strasburger, Eduard, 1844 -1912 (G. Borntraeger, 1915)

Jahres-Bericht der Schlesischen Gesellschaft für Vaterländische Cultur - Herrick, Francis Hobart, 1858 -1940 (G.P. Aderholz, 1861)

Jahres-Bericht der Schlesischen Gesellschaft für Vaterländische Cultur - Herrick, Francis Hobart, 1858 -1940 (G.P. Aderholz, 1872)

Jahres-Bericht der Schlesischen Gesellschaft für Vaterländische Cultur - Herrick, Francis Hobart, 1858 -1940 (G.P. Aderholz, 1913)

Jahresbericht über das Gebiet der Pflanzenkrankheiten - Hollrung, M. (Max), 1858 -1937 (P. Parey, 1905)

Jahresbericht über das Gebiet der Pflanzenkrankheiten - Hollrung, M. (Max), 1858 -1937 (P. Parey, 1907)

Jahresbericht über das Gebiet der Pflanzenkrankheiten - Hollrung, M. (Max), 1858 -1937 (P. Parey, 1910)

Jahresbericht über die Neuerungen und Leistungen auf dem Gebiete der Pflanzenkrankheiten - Hollrung, M. (Max), 1858 -1937 (P. Parey, 1901)

Jahresbericht über die Neuerungen und Leistungen auf dem Gebiete des Pflanzenschutzes - Hollrung, M. (Max), 1858 -1937 (P. Parey, 1898)

James J. McManmon, florist, nurseryman and landscape architect [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James J. McManmon, 1928)

James J. McManmon, florist, nurseryman and landscape architect [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James J. McManmon, 1927)

James King Nursery [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James King Nursery, 1917)

January bulletin of forestry and lining out stock : spring 1927 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1927)

January bulletin of forestry and lining out stock : spring 1928 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1928)

Japan's living gift to Washington - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rock Creek Nurseries, 1929)

Japanese Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Japanese Nursery, 1938)

Japanese Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Japanese Nursery, 1936)

Japanese nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Japanese Nursery Co, 1939)

Jelle Roos garden catalogue, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jelle Roos, 1933)

Jerry Brookins & Son [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jerry Brookins & Son, 1926)

John Leonard Riddell and John Torrey correspondence, 1833-1838 - Riddell, John Leonard, 1807 -1867 (1833)

The John Siebenthaler Nurseries [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John Siebenthaler Nurseries, 1923)

[Jones Ornamental Nursery, formerly] Howell Nurseries : azaleas, magnolias, hollies, evergreens, flowering shrubs, ornamental trees and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Jones Ornamental Nursery], 1940)

Journal d'agriculture pratique (Dusacq, Librairie agricole de la Maison rustique, 1900)

Journal de la Société nationale d'horticulture de France - Société nationale d'horticulture de France. (Au siége de la Société, 1886)

Journal of agricultural research - Association of American Agricultural Colleges; Experiment Stations. (U.S. Govt. Printing Office, 1917)

Journal of agricultural research - Association of American Agricultural Colleges; Experiment Stations. (U.S. Govt. Printing Office, 1918)

Journal of agricultural research - Association of American Agricultural Colleges; Experiment Stations. (U.S. Govt. Printing Office, 1924)

The Journal of arachnology - American Arachnological Society (American Arachnological Society, 1986)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1908)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1909)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1910)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1911)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1912)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1915)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1916)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1917)

Journal of economic entomology - American Association of Economic Entomologists (Entomological Society of America [etc.], 1919)

Journal of entomology and zoology - Pomona College (Claremont, Calif.). Dept. of Zoology. (Pomona College Dept. of Zoology, 1913)

Journal of forestry - Society of American Foresters. (Society of American Foresters, 1917)

Journal of forestry - Society of American Foresters. (Society of American Foresters, 1918)

The Journal of geology - University of Chicago. Dept. of Geology (University of Chicago Press, 1895)

The Journal of geology - University of Chicago. Dept. of Geology (University of Chicago Press, 1901)

The Journal of geology - University of Chicago. Dept. of Geology (University of Chicago Press, 1893)

The Journal of heredity - American Genetic Association. (American Genetic Association, 1915)