A handbook of systematic botany - Warming, Eugenius, 1841 -1924 (Swan, 1904)

Handbook of the British flora : a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles - Bentham, George, 1800 -1884 (Reeve, 1858)

Handbook of the British flora, a description of the flowering plants and ferns indigenous to or naturalised in the British Isles. For use of beginners and amateurs - Hooker, Joseph Dalton, 1817 -1911 (L. Reeve & co, 1900)

Handbook of the British flora; a description of the flowering plants and ferns indigenous to, or naturalized in the British Isles. For the use of beginners and amateurs - Bentham, George, 1800 -1884 (L. Reeve, 1865)

Handbook of the British flora; a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles - Bentham, George, 1800 -1884 (L. Reeve, 1865)

Handbook of the British flora; a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles - Bentham, George, 1800 -1884 (L. Reeve, 1858)

Handbook of the British flora: a description of the flowering plants and ferns indigenous to, or naturalised in the British Isles. For the use of beginners and amateurs - Bentham, George, 1800 -1884 (L. Reeve, 1908)

Handbook of the British flora: a description of the flowering plants and ferns indigenous to, or naturalized in, the British Isles. For the use of beginners and amateurs. By George Bentham - Hooker, Joseph Dalton, 1817 -1911 (L. Reeve & Co, 1920)

Handbook of the British flora: a description of the flowering plants and ferns indigenous to, or naturalised in, the British Isles. For the use of beginners and amateurs - Bentham, George, 1800 -1884 (L. Reeve & Co., ltd, 1918)

Handbook of the New Zealand flora : a systematic description of the native plants of New Zealand and the Chatham, Kermadec's, Lord Auckland's, and Macquarrie's islands - Hooker, Joseph Dalton, 1817 -1911 (Reeve & Co, 1867)

Handbook of the Torquay flora; comprising the flowering plants and ferns growing in and around Torquay, with their respective habitats - Stewart, Robert, M.R.C.S. (E. Croydon, Royal Library, 1860)

A handbook to the flora of Natal - Wood, John Medley, 1827 -1915 (Bennett & Davis, Printers, 1907)

Handbuch der allgemeinen Botanik - Müller, Nicolaus Jacob Carl, 1843? -1901 (C. Winter's UniversitMatsbuchhandlung, 1880)

Handbuch der biochemischen Arbeitsmethoden - Abderhalden, Emil, 1877 -1950 (Urban & Schwarzenberg, 1910)

Handbuch der biochemischen arbeitsmethoden - Abderhalden, Emil, 1877 -1950 (Urban & Schwarzenberg, 1910)

Handbuch der Blütenbiologie, unter Zugrundelegung von Herman Müllers Werk: "Die Befruchtung der Blumen durch Insekten." - Knuth, Paul, 1854 -1899 (W. Engelmann, 1898)

Handbuch der Botanik - Schenk, A. (August), 1815 -1891 (E. Trewendt, 1879)

Handbuch der botanischen terminologie und systemkunde - Bischoff, Gottlieb Wilhelm, 1797 -1854 (1830)

Handbuch der medicinisch-pharmaceutischen Botanik - Polet, C. B. (Verlag von C.B. Polet, 1850)

Handbuch der Naturbeschreibung zum Schul- und Privatunterrichte - Tetzner, Wilhelm. (Im Verlage der Hahnschen Hofbuchhandlung, 1826)

Handbuch der Naturgeschichte. Zum Gebrauch bei vorlesungen - Burmeister, Hermann, 1807 -1892 (Verlag von Theod. Chr. Friedr. Enslin, 1836)

Handbuch der pathogenen Mikroorganismen. Unter Mitwirkung von Rudolf Abel [et al.] Hrsg. von W. Kolle und A. von Wassermann - Kolle, Wilhelm, 1868 -1935 (G. Fischer, 1912)

Handbuch der Pflanzen-Pathologie und Pflanzen-Teratologie - Nees von Esenbeck, C. G. (Christian Gottfried), 1776 -1858 (1841)

Handbuch der pharmaceutischen botanik - Juch, Karl Wilhelm, 1774 -1821 (Stein'sche buchhandlung, 1804)

Handbuch der pharmaceutischen Botanik. : Mit illuminirten Kupfern - Volckart, Johann Friedrich, 1750 -1812 (Im Verlag der Stein'schen buchhandlung, 1804)

Handbuch der Pharmakognosie - Remy, E. (C. H. Tauchnitz, 1909)

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

Handbuch für botanische Bestimmungsübungen - Niedenzu, Franz, 1857 -1937 (Engelmann, 1895)

Handlexikon der Naturwissenschaften und Medizin - Bechhold, H. (Heinrich), 1866 -1937 (Bechhold, 1919)

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

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1866)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1868)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1869)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1870)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1872)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1874)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1875)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1877)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1878)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1879)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1880)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1881)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1882)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1884)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1887)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1888)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1890)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1891)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1892)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Robert Hardwicke, 1893)

Hardy ferns & flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1901)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1898)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1901)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1903)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1904)

Hardy ferns and flowers, and roses : over 60 kinds of lilies, bog plants and orchids in great variety, hardy ornamentals, native shrubs, etc - Gillett, Edward (Firm) (Edward Gillett, 1922)

Hardy ferns and flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1898)

Hardy ferns and flowers, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1899)

Hardy ferns and flowers : Southwick Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward Gillett, 1904)

Hardy flowers. Descriptions of upwards of thirteen hundred of the most ornamental species, with directions for their arrangement, culture, etc. ... - Robinson, W. (William), 1838 -1935 (Macmillan, 1878)

Hardy garden favorites [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Van Laar & Company, 1927)

Hardy garden favorites [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Van Laar & Company, 1926)

Hardy garden flowers - Biltmore Nursery (Biltmore, N.C.) (Biltmore Nursery, 1912)

Hardy garden flowers - Biltmore Nursery (Biltmore, N.C.) (Biltmore Nursery, 1910)

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1932)

Hardy perennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Purdy, 1911)

Hardy perennials - Macself, A. J. (Albert James), 1878 -1952 (Charles Scribner's Sons, 1922)

Hardy plant and service book of the Outdoor Arts Company, Inc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Outdoor Arts Company, 1926)

Hardy plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fairfax Farms Nursery, 1926)

Hardy plants for cottage gardens - Albee, Helen Rickey, 1864 -1939 (H. Holt and company, 1910)

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, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1938)

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 : 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1930)

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, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1935)

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, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gray & Cole, 1939)

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 the home garden, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1941)

Hardy plants for the home garden : season 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1929)

Hardy plants from a hardy climate : Horsford's autumn supplement for 1903 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fred'k H. Horsford, 1903)

Hardy plants worth having : Spring 1905 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1905)

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

Hardy trees, shrubs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Daybreak Nurseries, 1936)

Hardy trees, shrubs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Louis A. Byrne Nurseries, Inc, 1936)

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)

Harman's general catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (M.H. Harman Company, 1915)

Harmsworth's Universal encyclopedia - Hammerton, John Alexander, Sir, 1871 -1949 (Educational Bk. Co, 1900)

Hauptverzeichnis über Samen und Pflanzen - Haage & Schmidt. (Haage & Schmidt, 1921)

Hayward's Botanist's pocket-book; containing the chief characteristics of British plants; with botanical name, common name, soil or situation, colour, growth, and time of flowering of every plant, arranged under its own order - Druce, George Claridge, 1850 -1932 (G. Bell, 1930)

Hedwigia (Verlag und Druck von C. Heinrich, 1884)

Hedwigia (Verlag und Druck von C. Heinrich, 1897)

Hedwigia (Verlag und Druck von C. Heinrich, 1905)

Hedwigia (Verlag und Druck von C. Heinrich, 1906)

Hedwigia (Verlag und Druck von C. Heinrich, 1915)

Hedwigia (Verlag und Druck von C. Heinrich, 1916)

Die Heimat - Verein Zur Pflege Der Natur- Und Landeskunde In Nordelbingen (Husum Druck- und Verlagsgesellschaft, 1894)

Die Heimat - Verein Zur Pflege Der Natur- Und Landeskunde In Nordelbingen (Husum Druck- und Verlagsgesellschaft, 1891)

Heinrich Gottfried, Grafens von Mattuschka ... Flora Silesiaca, oder, Verzeichniss der in Schlesien wildwachsenden Pflanzen : nebst einer umständlichen Beschreibung derselben, ihres Nutzens und Gebrauches so wohl in Absicht auf die Arzney- als Haushaltungs-Wissenschaft - Mattuschka, Heinrich Gottfried, Graf von, 1734 -1779 (W.G. Korn, 1776)

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1906)

Helps to a beautiful home - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter's Nursery Co, 1907)

Hemiptera gymnocerata Europæ. Hémiptères gymnocérates dEurope, du bassin de la Méditerranée et de lAsie russe, décrites - Reuter, Odo Morannal, 1850 -1913 (ex Officina typographica Societatis litterariæ fennicæ, 1883)

The Hemiptera of Suffolk - Morley, Claude 1874 -1951 (J.H. Keys, 1905)