Horsford's hardy plants and bulbs : over fifty years, 1893-1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1944)

Horsford's lilies for fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1950)

Horsford's lilies for fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1949)

Horsford's lilies for fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1952)

Horsford's lilies for fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1953)

Horsford's lilies for fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1954)

Horsford's lilies for fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1955)

Horsford's lilies for fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1951)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1904)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1909)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1901)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1913)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1915)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1914)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1906)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1916)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1907)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1917)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1908)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1910)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1911)

Horsford's Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1912)

Horsford's regal plants and bulbs : a selection of the best, truly-hardy varieties perennials rock plants evergreens shrubs woodland ferns - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1935)

Horsford's regal plants and bulbs : a selection of the best, truly-hardy varieties perennials rock plants hardy lilies evergreens - shrubs woodland ferns - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1937)

Horsford's regal plants and bulbs : a selection of the best, truly-hardy varieties perennials rock plants hardy lilies evergreens shrubs woodland ferns - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1938)

Horsford's regal plants and bulbs : a selection of the best, truly-hardy varieties perennials rock plants hardy lilies evergreens shrubs woodland ferns - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1940)

Horsford's special list for spring planting : regal plants and bulbs : 1942 spring supplement - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1942)

Horsford's special list for spring planting : regal plants and bulbs. : 1941 spring supplement - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1941)

Horsford's special list for spring planting : regal plants and bulbs. : 1939 spring supplement - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1939)

Horsford's trade list of bulbs, ferns, orchids, and bog plants for the summer and autumn of '93 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Horsford, 1893)

Horticultural register, and gardener's magazine - Breck, Joseph, 1794 -1873 (G. D. Barrett [etc.], 1835)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1906)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1910)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1914)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1917)

L'horticulture dans les cinq parties du monde - Société nationale d'horticulture de France. (Société Nationale d'Horticulture, 1895)

Horticulture Northwest - Northwest Ornamental Horticultural Society (Northwest Ornamental Horticultural Society, 1980)

Horticulture Northwest - Northwest Ornamental Horticultural Society (Northwest Ornamental Horticultural Society, 1984)

Horticulture Northwest - Northwest Ornamental Horticultural Society (Northwest Ornamental Horticultural Society, 1986)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1848)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1860)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1861)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1864)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1872)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1875)

Hortus Elginensis, or A catalogue of plants, indigenous and exotic, cultivated in the Elgin Botanic Garden, in the vicinity of the city of New-York : established in 1801 - Hosack, David, 1769 -1835 (Printed by T. & J. Swords, 1811)

Hosea Waterer Golden Anniversary, 1892-1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hosea Waterer, 1942)

House & garden (Condé Nast Publications, etc.], 1911)

House & garden (Condé Nast Publications, etc.], 1913)

How ferns grow - Slosson, Margaret (Holt, 1906)

How ferns grow - Slosson, Margaret (H. Holt, 1906)

How to know the ferns : a guide to the names, haunts, and habits of our common ferns - Parsons, Frances Theodora, 1861 -1952 (C. Scribner's Sons, 1911)

How to know the ferns; a guide to the names, haunts and habits of our common ferns - Parsons, Frances Theodora, 1861 -1952 (C. Scribner's Sons, 1915)

How to know the ferns; a guide to the names, haunts and habits of our common ferns - Parsons, Frances Theodora, 1861 -1952 (C. Scribner's sons, 1899)

How to know the ferns; a guide to the names, haunts, and habits of our common ferns - Parsons, Frances Theodora, 1861 -1952 (C. Scribner's Sons, 1915)

How to make a country place; an account of the successes and the mistakes of an amateur in thirty-five years of farming, building and development: together with a practical plan for securing a home and an independent income, starting with small capital - Sawyer, Joseph Dillaway. (Orange Judd company; [etc., etc.], 1914)

How to make a country place; an account of the successes and the mistakes of an amateur in thirty-five years of farming, building, and development - Sawyer, Joseph Dillaway. (Orange Judd company; [etc., etc.], 1914)

How to make a flower garden; a manual of practical information and suggestions - Miller, Wilhelm, 1869 - (Doubleday, Page & company, 1903)

How to study plants - Wood, Alphonso, 1810 -1881 (American book company, 1895)

hu bei en shi yao yong zhi wu zhi 湖北恩施药用植物志 - Fang, Zhixian & Liao Chaolin 方志先，廖朝林 (hu bei ke xue ji shu chu ban she湖北科学技术出版社, 2006)

Hunt's perfection seeds, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Company, Incorporated, 1931)

Hunt's perfection seeds, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Company, Inc, 1932)

Hunt's perfection seeds, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Company, Inc, 1933)

Hunt's perfection seeds, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Company, Inc, 1934)

Hunt's perfection seeds, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Co., Inc, 1935)

Hunt's perfection seeds, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Company, Inc, 1940)

Hunt's perfection seeds, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Company, Inc, 1941)

Huntington's 1942 presentation of fine alpine, perennial and annual seeds, hardy herbaceous plants, new novelties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington Nursery, 1942)

The ice age in North America and its bearings upon the antiquity of man - Upham, Warren, 1850 -1934 (Bibliotheca Sacra Company, 1911)

Icones plantarum medico-oeconomico-technologicarum cum earum fructus ususque descriptione =Abbildungen aller medizinisch-ökonomisch-technologischen Gewächse mit der Beschreibung ihres Gebrauches und Nutzens - Albrecht, Ignatz. (herausgegeben von Ignatz Albrecht und verlegt bey Phil. Jos. Schalbaecher, 1806)

Iconographic encyclopaedia of science, literature, and art - Baird, Spencer Fullerton, 1823 -1887 (R. Garrigue, 1851)

Iconum botanicarum index locupletissimus = Die Abbildungen sichtbar blühender Pflanzen und Farnkräuter : aus der botanischen und Gartenliteratur des XVIII. und XIX. Jahrhunderts in alphabetischer Folge zusammengestellt - Pritzel, G. A. (Georg August), 1815 -1874 (In Libraria F. Nicolai, 1855)

Iconum botanicarum index locupletissimus. Verzeichniss der Abbildungen sichtbar blühender Pflanzen und Farnkräuter aus der botanischen und Gartenliteratur des XVIII. und XIX. Jahrhunderts in alphabetischer Folge zusammengestellt - Pritzel, G. A. (Georg August), 1815 -1874 (Nicolaische Verlagsbuchh, 1866)

Idaho's rare vascular flora : bibliography, 1896-1991 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1992)

IES newsletter - Institute of Ecosystem Studies (New York Botanical Garden) (New York Botanical Garden, Institute of Ecosystem Studies, Mary Flagler Cary Arboretum, 1989)

Illinois Natural History Survey bulletin - Illinois. Natural History Survey Division (The Survey, 2007)

Illinois River Bluffs area assessment - Illinois. Dept. of Natural Resources. (Illinois Dept. of Natural Resources, 1998)

The illustrated dictionary of gardening :a practical and scientific encyclopædia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L.U. Gill, 1884)

The Illustrated dictionary of gardening : a practical and scientific encyclopaedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L. Upcott Gill, 1887)

The illustrated dictionary of gardening, a practical and scientific encyclopedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L. U. Gill, 1884)

An illustrated dictionary of medicine, biology and allied sciences - Gould, George M. (George Milbry), 1848 -1922 (Balliére, Tindall & Cox, 1894)

An illustrated dictionary of medicine, biology and allied sciences - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston's Son & Co, 1900)

An illustrated dictionary of medicine, biology and allied sciences ... by George M. Gould. 5th ed., with additions and corrections - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston's Son, 1907)

An illustrated dictionary of medicine, biology and allied sciences - Gould, George M. (George Milbry), 1848 -1922 (P. Blakiston, Son & Co, 1894)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1896)

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 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 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, 1896)

An illustrated flora of the Pacific States: Washington, Oregon, and California - Abrams, Le Roy, 1874 -1956 (Stanford University Press, 1923)

Illustrirte Garten-Zeitung - Müller, Karl, 1818 -1899 (E. Schweizerbart, 1869)

In my lady's garden - Richmond, I. L. (T.F. Unwin, 1908)

Index filicum: a synopsis, with characters, of the genera, and an enumeration of the species of ferns, with synonymes, references, &c., &c - Moore, Thomas, 1821 -1887 (W. Pamplin, 1857)

Index plantarum Japonicarum, sive, Enumeratio plantarum omnium ex insulis Kurile, Yezo, Nippon, Sikoku, Kiusiu, Liukiu, et Formosa hucusque cognitarum systematice et alphabetice disposita adjectis synonymis selectis, nominibus Japonicis, locis natalibus - Matsumura, Jinzo, 1856 -1928 (Apud Maruzen, 1904)

Index to plant chromosome numbers - Missouri Botanical Garden. (Missouri Botanical Garden, 1996)

Indian medicinal plants - Basu, Baman Das, 1867 -1930 (Sudhindra Nath Basu, Pâninî office; [etc., etc.], 1918)

INPS journal - Indiana Native Plant Society. (Indiana Native Plant Society, 2019)

INPS journal - Indiana Native Plant Society. (Indiana Native Plant Society, 2021)

INPS journal - Indiana Native Plant Society. (Indiana Native Plant Society, 2023)

Instructive guide : vegetable and flower gardening : lawn grasses, insecticides, field seed, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wood-Stubbs Co., Incorporated, 1931)

Interior Columbia Basin ecosystem management project : analysis of vascular plants - Shelly, J. Stephen (U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station], 1997)

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

An introduction to the natural system of botany : or, A systematic view of the organisation, natural affinities, and geographical distribution, of the whole vegetable kingdom : together with the uses of the most important species in medicine, the arts, and rural or domestic economy - Lindley, John, 1799 -1865 (Longman, Rees, Orme, Brown, and Green, 1830)

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 cryptogamous plants. In letters - Sprengel, Kurt Polycarp Joachim, 1766 -1833 (Printed for J. White, 1807)

Inventory of native American plants for sale : very special offerings for fall of 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1931)

An invitation to gain double springtime by fall planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1927)

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

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)

Irish gardening (Pub. Office, 1906)

Irish gardening (Pub. Office, 1919)

Isis, oder, Encyclopädische Zeitung von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1818)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1820)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1831)

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

Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten - Hamburg (Germany). Oberschulbeh. Sektion f Wissenschaftlichen Anstalten. (Lucas Gr & Sillem, 1901)

Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten - Hamburg (Germany). Oberschulbeh. Sektion f Wissenschaftlichen Anstalten. (Lucas Gr & Sillem, 1911)

Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten - Hamburg (Germany). Oberschulbeh. Sektion f Wissenschaftlichen Anstalten. (Lucas Gr & Sillem, 1913)