Handbuch der palaeontologie - Schimper, Wilhelm-Philippe, 1808 -1880 (R. Oldenbourg, 1890)

Handbuch der Pflanzenkrankheiten - Sorauer, Paul, 1839 -1916 (P. Parey, 1921)

Handbuch der praktischen Botanik : enthaltend die Geschichte, Beschreibung und Anwendung sämmtlicher in Deutschland wildwachsenden und in den Gärten und Gewächshäusern cultivierten Pflanzen - Voigt, F. S. (Friedrich Siegmund), 1781 -1850 (F. Mauke, 1850)

Handbuch der systematischen botanik, mit besonderer berücksichtigung der arzneipflanzen. Bd. 1 - Luerssen, Christian, 1843 -1916 (H. Haessel, 1879)

Handwörterbuch der naturwissenschaften - Verworn, Max, 1863 -1921 (G. Fischer, 1912)

Hardy coniferous trees : being a concise description of each species and variety, with the most recently approved nomenclature, lists of synonyms, and best methods of cultivation ... - Webster, A. D. (Angus Duncan), 1855 -1931 (Hutchinson, 1896)

Hardy coniferous trees : being a concise description of each species and variety, with the most recently approved nomenclature, lists of synonyms, and best methods of cultivation - Webster, A. D. (Angus Duncan), 1855 -1931 (Hutchinson, 1896)

Hardy ornamental trees and shrubs - James Veitch & Sons. (James Veitch & Sons, Ltd, 1911)

Hardy plants for Alpine and rocky gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1926)

Hardy plants for Long Island - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hart's Lynbrook Nurseries, 1917)

Hardy plants for New England gardens, 1934 : perennials, rock plants, flowering shrubs, evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1934)

Hardy plants for New England gardens, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1937)

Hardy plants for New England gardens : perennials, rock plants, flowering shrubs, evergreens, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1936)

Hardy plants for New England gardens : perennials, rock plants, flowering shrubs, evergreens, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1932)

Hardy plants for New England gardens : perennials, rock plants, flowering shrubs, evergreens, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1935)

Hardy plants for New England gardens : perennials, rock plants, flowering shrubs, evergreens : 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1931)

Hardy plants for New England gardens : perennials, rock plants, flowering shrubs, evergreens, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1940)

Hardy plants for New England gardens : perennials, rock plants, flowering shrubs, evergreens, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1933)

Hardy plants for New England gardens : perennials, rock plants, flowering shrubs, evergreens : 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1930)

Hardy shrubs, vines, hardy perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Nursery Company, 1916)

Hardy trees and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1916)

Hardy trees and plants [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1915)

Hardy trees and plants [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1914)

Hardy trees and shrubs, greenhouse plants, orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co, 1915)

Hardy trees and shrubs, greenhouse plants, orchids [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Company, 1914)

Hardy trees, shrubs and evergreens, 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1928)

Hardy trees, shrubs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1910)

Hardy trees, shrubs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Company, 1919)

Hardy trees, shrubs and plants for New England - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.W. Adams Nursery Company, 1913)

Hardy trees, shrubs, perennials, evergreens, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Nursery Company, 1923)

Hardy trees shrubs, vines, evergreens, hardy perennials and fruits : Spring 1903 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1903)

Hardy trees, shrubs, vines, roses, plants and their uses : spring 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries Co, 1914)

Hardy, well ripened Northern grown nursery stock : 1871-1946, 75th Anniversary - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Felix Gillet Nursery, 1946)

Hardy woody plants in the New York Botanical Garden - New York Botanical Garden (New York Botanical Garden, 1920)

Harrisons' nurseries : nurserymen - orchardists - Harrison's Nurseries (Berlin, Md.) (J. G. Harrison & Sons, 1920)

Harrisons' nurseries : nurserymen - orchardists - Harrison's Nurseries (Berlin, Md.) (J. G. Harrison & Sons, 1921)

Harvard botanical memoirs - Harvard University. (Harvard University], 1905)

Harvard botanical memoirs - Harvard University. (Harvard University], 1908)

The "Heatherhome" seed and plant book 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Knight and Struck Company, 1917)

The "Heatherhome" seed and plant book 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Knight and Struck Company, 1916)

Henderson's Handbook of plants and general horticulture - Henderson, Peter, 1822 -1890 (P. Henderson & Co, 1890)

Henderson's Handbook of plants and general horticulture - Henderson, Peter, 1822 -1890 (P. Henderson & Co, 1910)

Henderson's Handbook of plants and general horticulture - Henderson, Peter, 1822 -1890 (P. Henderson & company, 1910)

Hesdörffers Monatshefte für Blumen und Gartenfreunde - Hesdörffer, Max, 1863 -1920 (R. Oppenheim (G. Schmidt), 1896)

H.H. Berger & Co.'s catalogue of bulbs, seeds and plants : our special importations form Japan, China and Australia - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.H. Berger & Co, 1891)

H.H. Berger & Co.'s catalogue of rare Japanese plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.H. Berger & Co, 1886)

H.H. Berger & Co.'s price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.H. Berger & Co, 1897)

H.H. Berger & Co.'s price list : for the trade only 1895-1896 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.H. Berger & Co, 1896)

H.H. Berger & Co.'s wholesale price list of tree, shrub, palm and flower seed : bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (H.H. Berger & Co, 1898)

"Highest quality" seeds, plants & bulbs, garden supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Routledge Seed & Floral Co, 1911)

Hill's evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Co, 1942)

Hill's evergreens catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Co, 1943)

Histoire des plantes - Baillon, H. (Henri), 1827 -1895 (Librairie Hachette, 1894)

A histological and physiological analysis of adventitious root formation in juvenile and mature cuttings of Ficus pumila L - Davies, Frederick Tracy, 1949 - (1978)

Histologische Beiträge - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1888)

Histologische Beiträge - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1891)

History of the Berwickshire Naturalists' Club - Berwickshire Naturalists' Club. (1903)

History of the Massachusetts horticultural society - Manning, Robert, (The Society, 1880)

History of the Massachusetts Horticultural Society. 1829-1878 - Manning, Robert. (The Society, 1880)

[H.M. Thompson & Son materials] - Liberty Hyde Bailey Hortorium. Ethel Z. Bailey Horticultural Catalogue Collection. (H.M. Thompson & Son, 1880)

Home landscapes - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hicks Nurseries, 1918)

Home landscapes : 1920 descriptive catalogue and price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hicks Nurseries, 1920)

Home landscapes. descriptive catalogue and price list 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hicks Nurseries, 1919)

Home landscapes including trees that save ten years : 1917 descriptive catalogue and price-list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hicks Nurseries, 1917)

Home landscapes including trees that save ten years : descriptive catalogue, price-list, 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hicks Nurseries, 1916)

Home landscapes including trees that save ten years : descriptive catalogue, price-list, 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hicks Nurseries, Isaac Hicks & Son, 1915)

The home of heathers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Knight and Struck Company, 1914)

Hoopes, Bro. & Thomas Company - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hoopes, Bro. & Thomas Company, 1917)

Hoopes, Bro. & Thomas Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hoopes, Bro. & Thomas Company, 1914)

Hoopes, Bro. & Thomas Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hoopes, Bro. & Thomas Company, 1915)

Hoopes, Bro. & Thomas Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maple Avenue Nurseries, 1910)

Hoopes, Bro. & Thomas Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maple Avenue Nurseries, 1912)

Hoopes, Bro. & Thomas Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maple Avenue Nurseries, 1908)

Hoopes, Bro. & Thomas Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hoopes, Bro. & Thomas Company, 1918)

Hoopes, Bro. & Thomas Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hoopes, Bro. & Thomas Company, 1921)

Horseshoe brand products, not how cheap, but how good - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph M. Ward & Company, Inc, 1910)

Horticultural supplies, seeds - Dunne & Co. (Dunne & Co, 1900)

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

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1908)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1911)

Horticulture - Pennsylvania Horticultural Society. (Horticulture Pub. Co, 1918)

L'horticulture dans les cinq parties du monde - Baltet, Charles, 1830 -1908 (Société nationale d'horticulture, 1895)

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, 1863)

The Horticulturist and journal of rural art and rural taste (Luthur Tucker, 1874)

Hortus Mortolensis : enumeratio plantarum in Horto Mortolensi cultarum = Alphabetical catalogue of plants growing in the garden of the late Sir Thomas Hanbury ... at La Mortola, Ventimiglia, Italy - Berger, Alwin, 1871 -1931 (West, Newman, 1912)

Hortus Veitchii : a history of the rise and progress of the nurseries of Messrs. James Veitch and sons, together with an account of the botanical collectors and hybridists employed by them and a list of the most remarkable of their introductions - Veitch, James Herbert, 1868 -1907 (J. Veitch & sons, 1906)

House & garden (Condé Nast Publications, etc.], 1919)

Hovey & Co.'s illustrated guide to the flower and vegetable garden, and catalogue of seeds - Hovey & Co. (Hovey & Co, 1876)

Hoveys' illustrated catalogue of new and rare plants for 1877 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hovey & Co, 1877)

Hoveys' illustrated catalogue of new plants for 1873 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hovey & Co, 1873)

How to make tree seeds grow - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Company, 1927)

Howell Nurseries : azaleas, magnolias, hollies, evergreens, flowering shrubs, ornamental trees and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1937)

Howell Nurseries : azaleas, magnolias, hollies, evergreens, flowering shrubs, ornamental trees and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1939)

hua bei jing ji zhi wu zhi yao - Cui, Youwen. (zhong guo ke xue yuan chu ban)

Iconographia familiarum naturalium regni vegetabilis = Abbildungen der natürlichen Familien des Gewächsreiches : delineata atque adiectis familiarum characteribus adnotationibusque variis tum scientiam tum usum spectantibus exornata - Schnizlein, Adalbert, 1814 -1868 (M. Cohen, 1843)

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

The identification of trees & shrubs; how to recognize, without previous knowledge of botany, wild or garden trees and shrubs native to the north temperate zone - Makins, F. K. (Dutton, 1937)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1935)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1943)

Illustrated and descriptive catalogue of fruit and ornamental trees : shrubs, roses, grape vines, small fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (First National Nurseries, 1909)