Handbook of flower pollination based upon Hermann Müller's work The fertilisation of flowers by insects - Knuth, Paul, 1854 -1899 (Clarendon press, 1909)

Handbook of hardy herbaceous and alpine flowers - Sutherland, William. (Blackwood, 1871)

Handbook of hardy trees, shrubs, and herbaceous plants ... Based on the French work of Messrs. Decaisne and Naudin ...entitled 'Manuel de l'amateur des jardins,' and including the original woodcuts by Riocreux and Leblanc - Decaisne, Joseph, 1807 -1882 (Estes & Lauriat, 1873)

Handbook of hardy trees, shrubs, and herbaceous plants. Based on the French work of Messrs. Decaisne and Naudin entitled 'Manuel de l'amateur des jardins,' and including the original woodcuts by Riocreux and Leblanc - Decaisne, Joseph, 1807 -1882 (Estes & Lauriat, 1873)

Handbook of hardy trees, shrubs, and herbaceous plants : containing descriptions, native countries, etc. of a selection of the best species in cultivation, together with cultural details, comparative hardiness, suitability for different situations, etc. : based on the French work of Messrs. Decaisne and Naudin entitled 'Manuel de l'amateur des jardins, ' and including the original woodcuts by Riocreux and Leblanc - Decaisne, Joseph, 1807 -1882 (Longmans, Green, 1873)

Handbook of plants and general horticulture - Henderson, Peter. (1890)

A handbook of systematic botany - Warming, Eugenius, 1841 -1924 (Macmillan & Co, 1895)

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

Handbook of systematic malacology - Thiele, Johannes, 1860 -1935 (Smithsonian Institution Libraries : National Science Foundation, 1998)

Handbook of trees, shrubs, roses, plants for garden and greenhouse : 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.N. Pierson Inc, 1916)

The handbook to the flower garden and greenhouse - Glenny, George, 1793 -1874 (W. Kent, 1859)

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

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

Handbuch der Conchyliologie und Malacozoologie - Philippi, Rodolfo Amando, 1808 -1904 (Eduard Anton, 1853)

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

Handbuch der Naturgeschichte aller drei Reiche, fur Lehrer and Lernende, fur Schule und Haus - Bromme, Traugott, 1802 -1866 (1850)

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

Handbuch der palaeontologie - Schimper, Wilhelm-Philippe, 1808 -1880 (R. Oldenbourg, 1881)

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

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)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1875)

Handbuch des natürlichen Pflanzensystems nach allen seinen Classen, Ordnungen und Familien : nebst naturgemässer Gruppirung der Gattungen, oder Stamm und Verzweigung des Gewächsreiches : enthaltend eine vollständige Charakteristik und Ausführung der natürlichen Verwandtschaften der Pflanzen in ihrer Richtung aus der Metamorphose und geognostischen Verbreitung, wie die fortgebildete Zeit deren Anschauung fordert - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (Arnold, 1850)

Handbuch des natürlichen Pflanzensystems nach allen seinen Classen, Ordnungen und Familien : nebst naturgemässer Gruppirung der Gattungen, oder Stamm und Verzweigung des Gewächsreiches : enthaltend eine vollständige Charakteristik und Ausführung der natürlichen Verwandtschaften der Pflanzen in ihrer Richtung aus der Metamorphose und geographischen Verbreitung, wie die fortgebildete Zeit deren Anschauung fordert - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (Arnold, 1837)

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

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

Handwörterbuch der Pharmakognosie des Pflanzenreichs - Wittstein, Georg Christian, 1810 -1887 (E. Trewendt, 1882)

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, 1881)

Hardy and annual flowering plants : Vol. 3, March 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins Brothers, 1935)

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 flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Knickerbocker Nurseries, 1916)

Hardy herbaceous & Alpine plants : fall 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1930)

Hardy herbaceous & Alpine plants : spring 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1928)

Hardy herbaceous & Alpine plants : spring 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1929)

Hardy herbaceous & Alpine plants : wholesale catalog, autumn 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1929)

Hardy herbaceous & Alpine plants : wholesale catalog, fall 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1930)

Hardy herbaceous & Alpine plants : wholesale catalog, spring 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1930)

Hardy herbaceous & Alpine plants : wholesale catalog, Spring 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1929)

Hardy herbaceous & Alpine plants : wholesale catalog, Spring 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1928)

Hardy herbaceous and alpine plants for the rockery, home grounds or cut flowers : fall and spring 1932-1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (N.A. Hallauer, 1932)

Hardy herbaceous and alpine plants : spring 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1931)

Hardy herbaceous and alpine plants : wholesale catalog, spring 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1931)

Hardy herbaceous and rock garden plants - Clement, G. Latta. (Nik-Nar Farm, 1931)

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Firm, 1926)

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1924)

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

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1931)

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1929)

Hardy herbaceous plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1930)

Hardy herbaceous plants : wholesale catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Bulb Co, 1934)

Hardy native and imported alpines and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.B. Drake, Alpine Gardens, 1939)

Hardy, native and imported alpines and perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.B. Drake, Alpine Gardens, 1935)

Hardy native and imported alpines and perennials : retail catalog 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Borsch & Son, Inc, 1932)

Hardy native and imported alpines and perennials : retail catalog 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Borsch & Son, Inc, 1938)

Hardy native and imported alpines and perennials : retail catalog 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Borsch & Son, Inc, 1937)

Hardy native and imported alpines and perennials : retail catalog 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Borsch & Son, Inc, 1942)

Hardy native and imported alpines and perennials : retail catalog 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Borsch & Son, Inc, 1944)

Hardy native and imported alpines and perennials : retail catalog 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Borsch & Son, Inc, 1936)

Hardy native and imported alpines and perennials : retail catalog 1934-1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Borsch & Son, Inc, 1934)

Hardy native and imported alpines and perennials : retail catalog, 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Saxton & Wilson, 1945)

Hardy perennial flower seeds : including new varieties besides old-fashioned flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palisades Nurseries, Incorporated, 1921)

Hardy perennial plants [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Upper Bank Nurseries, 1927)

Hardy perennial plants wholesale only for fall 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Company, 1940)

Hardy perennial plants, wholesale only for spring 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Co, 1943)

Hardy perennial plants : wholesale trade list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1931)

Hardy perennial plants : wholesale trade list [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1930)

Hardy perennials and rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Upper Bank Nurseries, 1930)

Hardy perennials and rock plants : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Upper Bank Nurseries, 1928)

Hardy perennials and rock plants, wholesale : fall 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1928)

Hardy perennials and rock plants, wholesale : fall 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1929)

Hardy perennials and rock plants, wholesale : spring 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1929)

Hardy perennials and rock plants, wholesale : spring 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1930)

Hardy perennials and rock plants wholesale : spring 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1932)

Hardy perennials grown in severe climate of Northern New York : price list, spring and fall 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Walter C. Stone, 1943)

Hardy perennials, rock-garden plants, vines, roses, evergreens, etc. : wholesale price list, spring and fall 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palisades Nurseries, Inc, 1932)

Hardy perennials, rock-garden plants, vines, roses, evergreens, etc. : wholesale price list, spring and fall 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palisades Nurseries, Incorporated, 1930)

Hardy perennials, rock-garden plants, vines, roses, evergreens, etc. : wholesale price list, spring and fall 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palisades Nurseries, Inc, 1931)

Hardy perennials wholesale : fall 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1924)

Hardy perennials wholesale : fall 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1925)

Hardy perennials wholesale : fall 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1927)

Hardy perennials wholesale : spring 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1925)

Hardy perennials wholesale : spring 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1926)

Hardy perennials wholesale : spring 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1927)

Hardy perennials wholesale : spring 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hammonton Hardy Plant Nursery, 1928)

Hardy plant material for 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, 1931)

Hardy plant material for 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, 1932)

Hardy plant material for 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, 1933)

Hardy plant material for 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1934)

Hardy plant material for 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1935)

Hardy plant material for 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1936)

Hardy plant material for 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Snyder Bros, Inc, 1937)

Hardy plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1932)

Hardy plants : a complete collection : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank Josifko, 1926)

Hardy plants : a complete collection : 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank Josifko, 1927)

Hardy plants by Wayside Gardens : root strength, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1934)

Hardy plants : [fall catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1931)

Hardy plants for Canadian homes, 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (McConnell Nursery Co, 1945)

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

Hardy plants for more profits - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1932)

Hardy plants for New England gardens, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Corliss Bros., Inc., Nurseries, 1939)

Hardy plants for the home garden, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1937)

Hardy plants for the home garden, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1938)

Hardy plants for the rock-garden [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wyman's Framingham Nurseries, 1929)

Hardy plants, rock plants, dwarf and slow growing evergreens, trees & shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George L. Ehrle, 1934)

Hardy plants, rock plants, lilies, bulbs : 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1933)

Hardy plants, rock plants, lilies, bulbs : Autumn, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1932)

Hardy plants, rock plants, lilies, bulbs : autumn 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1934)

Hardy plants, rock plants, lilies, bulbs, seeds : wholesale catalog, spring 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1935)

Hardy plants, rock plants, lilies, bulbs : spring, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1932)

Hardy plants, rock plants, lilies, bulbs : wholesale catalog, autumn 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1933)

Hardy plants, rock plants, lilies, bulbs : wholesale catalog, autumn 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1934)

Hardy plants, rock plants, lilies, bulbs : wholesale, fall 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1931)

Hardy plants : root strength, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1935)

Hardy plants : root strength, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1936)

Hardy plants, root strength, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1937)

Hardy plants, root strength, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1938)

Hardy plants : roses, shrubs, lilies, bulbs, seeds : wholesale catalog, spring 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens Co, 1941)

Hardy plants, spring 1944 wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Company, 1944)

Hardy plants, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Co, 1937)

Hardy plants, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Co, 1936)

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)