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

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

Hedwigia (Verlag und Druck von C. Heinrich, 1908)

Hedwigia (Verlag und Druck von C. Heinrich, 1909)

Hedwigia (Verlag und Druck von C. Heinrich, 1910)

Hedwigia (Verlag und Druck von C. Heinrich, 1911)

Hedwigia (Verlag und Druck von C. Heinrich, 1912)

Hedwigia (Verlag und Druck von C. Heinrich, 1913)

Hedwigia (Verlag und Druck von C. Heinrich, 1914)

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

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

Hedwigia (Verlag und Druck von C. Heinrich, 1917)

Hedwigia (Verlag und Druck von C. Heinrich, 1919)

Hedwigia (Verlag und Druck von C. Heinrich, 1920)

Hedwigia (Verlag und Druck von C. Heinrich, 1922)

Helicinenstudien - Wagner, A. J.‏ (Antoni Józef),‏ ‎ 1860 -1928 (Aus Kaiserlich-Königlichen hof- und Staatsdruckerei, 1905)

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

Histoire des plantes - Baillon, H. (Henri), 1827 -1895 (Librairie Hachette, 1891)

Histoire du chêne dans l'antiquité & dans la nature; ses applications à l'industrie, aux constructions navales aux sciences et aux arts, etc - Coutance, A. (Amédée), 1828 -1895 (Baillière, 1873)

Historia natural - Brehm, Alfred Edmund, 1829 -1884 (Montaner y Simón, 1880)

An historical and geographical memoir of the North-American continent its nations, and tribes - Gordon, James, 1750 -1819 (Printed by John Jones, 1820)

A history of North American birds. Land birds - Baird, Spencer Fullerton, 1823 -1887 (Little, Brown, 1874)

Hooker's journal of botany and Kew Garden miscellany - Hooker, William Jackson, Sir, 1785 -1865 (Reeve, Benham, and Reeve, 1851)

Der Hopfen aller hopfenbauenden Länder der Erde als Braumaterial nach seinen geschichtlichen, botanischen, chemischen, brautechnischen, physiologisch-medizinischen und landwirtschaftlich-technischen Beziehungen, wie nach seiner Konservierung und Packung. Zum Selbststudium und nachschlagen - Braungart, Richard, 1839 -1916 (R. Oldenbourg, 1901)

Hortus lignosus londinensis: or, A catalogue of all the ligneous plants, indigenous and foreign, hardy and half-hardy, cultivated in the gardens and grounds in the neighbourhood of London: with all their synonymes, scientific and popular, including their French, German, and Italian names; and with their native country, habit, habitation in the garden, etc. To which are added the prices of hardy trees and shrubs in the principal nurseries of London and Edinburgh, and at Bollwyller in France, and in Hamburg - Loudon, J. C. (John Claudius), 1783 -1843 (The author, 1838)

The hylid frogs of Middle America - Duellman, William E. (William Edward), 1930 - (University of Kansas, 1970)

Hymenophyllaceas novas : cum ab aliis tum a semet ipso distinctas, ceu synopseos supplementum - Bosch, R. B. van den (Roelof Benjamin), 1810 -1862 (J. Hazenberg?,c1864?, 1859)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1871)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1874)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1883)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1894)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1910)

Icones euphorbiarum, ou, Figures de cent vingt-deux espèces du genre Euphorbia, dessinées et gravées par Heyland, avec des considérations sur la classification et la distribution géographique des plantes de ce genre - Boissier, Edmond, 1810 -1885 (V. Masson, 1866)

Iconographie générale des ophidiens / par M. le Professeur Jan - Jan, G. (Giorgio), 1791 -1866 (J.B. Baillière et fils, etc, 1860)

Iconographie générale des ophidiens - Jan, G. (Giorgio), 1791 -1866 (chez l'auteur [etc.], 1861)

Iheringia. Série zoologia - Fundação Zoobotânica do Rio Grande do Sul. Museu de Ciências Naturais. (Museu Rio-Grandense de Ciências Naturais, Divisão de Ciências do Departamento de Ciência e Cultura, Secretaria de Estado dos Negócios da Educação e Cultura do Govêrno do Estado do Rio Grande do Sul, 1957)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1927)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1999)

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)

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)

Index filicum,sive, Enumeratio omnium generum specierumque filicum et Hydropteridum ab anno 1753 ad finem anni 1905 descriptorium : adjectis synonymis principalibus, area geographica, etc - Christensen, Carl, 1872 -1942 (H. Hagerup, 1934)

Index Kewensis. names of seed-bearing plants at the rank of family and below published between January 1981 and the end of 1985 with some omissions from earlier years. Supplement eighteen - Royal Botanic Gardens, Kew. (Clarendon Press, 1901)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCLXXXVI usque ad finem anni MDCCCXCV complectens. Supplementum primum - Royal Botanic Gardens, Kew. (apud Alfredum Castaigne, 1901)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCXXVI usque ad finem anni MDCCCCXXX complectens. Supplementum octavum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano, 1901)

Index to grass species - Smithsonian Institution (G. K. Hall, 1962)

Insekten-Börse (1897)

Insekten-Börse (1903)

Insekten-Börse (1904)

Insekten-Börse (1905)

Insekten-Börse (1906)

Insektenbörse (Alfred Kernen, 1909)

Insektenbörse (Alfred Kernen, 1918)

Insektenbörse (Alfred Kernen, 1919)

Gli insetti : introduzione allo studio dell'entomologia - Camerano, Lorenzo, 1856 -1917 (Ermanno Loescher, 1879)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1902)

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, 1902)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1910)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1903)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1906)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1907)

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, 1909)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1910)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1912)