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

Handbuch der entomologie - Schröder, Christoph Wilhelm Marcus, 1871 - (Gustav Fischer, 1912)

Handbuch der entomologie - Schröder, Christoph Wilhelm Marcus, 1871 - (Gustav Fischer, 1914)

Handbuch der entomologie - Schröder, Christoph Wilhelm Marcus, 1871 - (Gustav Fischer, 1921)

Handbuch der Morphologie der wirbellosen Tiere - Lang, Arnold, 1855 -1914 (G. Fischer, 1913)

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

Handbuch der Tropenkrankheiten - Mense, Carl Anton, 1861 -1938 (J. A. Barth, 1913)

Handbuch der Tropenkrankheiten - Mense, Carl Anton, 1861 -1938 (J. A. Barth, 1921)

Handbuch der vergleichenden Physiologie - Winterstein, Hans, 1879 - (Fischer, 1911)

Handbuch der Zoologie - Wiegmann, Arend Friedrich August, 1802 -1841 (im Verlage bei C.G. Lüdertz, 1832)

Handbuch der Zoologie mit besonderer Berücksichtigung derjenigen Thiere, welch in Bezug auf Forst und Landwirthschaft, sowie hinsichtlich der Jagd vorzüglich wichtig sind ... Zweiter Theil Wirbellos Thiere ... - Döbner, Eduard Philipp, 1810 -1890 (Krebs, 1862)

Handbuch für Naturaliensammler : Eine Praxis der Naturgeschichte ; Mit 12 Farbtafeln, 31 Tafeln nach Zeichnungen, und Photographien, sowie 465 Textabbildungen nach Zeichnungen, Photographien und Mikrophotographien des Verfassers - Bade, E. (Fritz Pfenningstorff, 1913)

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

Handwörterbuch der Zoologie - Dalla Torre, K. W. von (Karl Wilhelm), 1850 -1928 (F. Enke, 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, 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, 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, 1865)

The harmonies of nature : or, the unity of creation - Hartwig, G. (Georg), 1813 -1880 (D. Appleton, 1866)

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The head-capsule and mouth-parts of Diptera - Peterson, Alvah, 1888 - (1916)

Helios - Huth, Ernst, 1845 -1897 (R. Friedländer & Sohn, 1926)

Herbertia - American Plant Life Society. ([American Plant Life Society], 2003)

Historia animalium - Thompson, D'Arcy Wentworth, 1860 -1948 (The Clarendon Press, 1910)

História natural de orgamismos aquáticos do Brasil bibliografia comentada - Vanzolini, P. E. (Paulo Emilio) (Fapesp, 1964)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1897)

The Hope reports - Poulton, Edward Bagnall, Sir, 1856 -1943 (Printed for private circulation, 1913)

Horae Societatis Entomologicae Rossicae, variis sermonibus in Rossia usitatis editae - Russkoe ėntomologicheskoe obshchestvo. (Typis V. Besobrasovi & Comp, 1879)

Horae Societatis Entomologicae Rossicae, variis sermonibus in Rossia usitatis editae - Russkoe ėntomologicheskoe obshchestvo. (Typis V. Besobrasovi & Comp, 1880)

Horae Societatis Entomologicae Rossicae, variis sermonibus in Rossia usitatis editae - Russkoe ėntomologicheskoe obshchestvo. (Typis V. Besobrasovi & Comp, 1901)

Horae Societatis Entomologicae Rossicae, variis sermonibus in Rossia usitatis editae - Russkoe ėntomologicheskoe obshchestvo. (Typis V. Besobrasovi & Comp, 1910)

Horae Societatis Entomologicae Rossicae, variis sermonibus in Rossia usitatis editae - Russkoe ėntomologicheskoe obshchestvo. (Typis V. Besobrasovi & Comp, 1914)

Horse-flies : biologies and relation to western agriculture - Böving, Adam Giede, 1869 -1957 (U.S. Dept. of Agriculture, 1924)

Horse flies (Diptera: Tabanidae) of the Colombian departments of Choco, Valle, and Cauca - Wilkerson, Richard C., 1946 - (1978)

The horseflies of the subfamily Tabaninae of the Nearctic region - Stone, Alan, 1904 - (U.S. Dept. of Agriculture, 1938)

The house fly, disease carrier : an account of its dangerous activities and of the means of destroying it - Howard, L. O. (Leland Ossian), 1857 -1950 (A. Stokes, 1911)

The house fly, disease carrier; an account of its dangerous activities and of the means of destroying it - Howard, L. O. (Leland Ossian), 1857 -1950 (Stokes, 1911)

The house-fly, Musca domestica Linn. : its structure, habits, development, relation to disease and control - Hewitt, C. Gordon (Charles Gordon), 1885 -1920 (University Press, 1914)

The house fly Musca domestica, Linnæus: a study of its structure, development, bionomics and economy - Hewitt, C. Gordon (Charles Gordon), 1885 -1920 (University Press, 1910)

How to collect mosquitoes (Culicidae) - British Museum (Natural History) (British Museum (Natural History), [printed by Darling for H.M.S.O.], 1899)

How to know the immature insects; an illustrated key for identifying the orders and families of many of the immature insects with suggestions for collecting, rearing and studying them - Zhu, Hongfu, 1913 - (W. C. Brown Co, 1949)

How to know the insects; an illustrated key to the more common families of insects, with suggestions for collecting, mounting and studying them - Jaques, H. E. (Harry Edwin), 1880 - (The author, 1941)

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Hymenoptera of America north of Mexico : synoptic catalog, first supplement - Krombein, Karl V. (U.S. Dept. of Agriculture, 1958)

Hymenoptera of America north of Mexico : synoptic catalog, second supplement - Krombein, Karl V. (U.S. Dept. of Agriculture, 1967)

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, 1978)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1916)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1917)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1926)

Illinois birds: Ciconiiformes - Graber, Jean W. (Jean Weber), 1924 -2015 (State of Illinois, Dept. of Registration and Education, Natural History Survey Division, 1978)

The Illinois farmer a monthly agricultural journal, devoted to the interests of the farmer, gardener, fruit grower and stock raiser - Dunlap, M. L., (Bailhache & Baker [etc.], 1856)

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

Illinois wetland restoration and creation guide - Illinois. Natural History Survey Division (Illinois Natural History Survey, 1997)

Illustrated natural history - Wood, J. G. (John George), 1827 -1889 (Home Bk. Co, 1880)

Illustrations of African blood-sucking flies other than mosquitoes and tsetse-flies - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1909)

Illustrations of African blood-sucking flies other than mosquitoes and tsetse-flies - Austen, E. E. (Ernest Edward), 1867 -1938 (Longmans, 1909)

Illustrations of British blood-sucking flies - Austen, E. E. (Ernest Edward), 1867 -1938 (Printed by order of the Trustees of the British Museum, 1906)

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Illustrierte Zeitschrift für Entomologie - Allgemeine Entomologische Gesellschaft. (J. Neumann, 1900)

Illustrirtes Thierleben - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliogr. Instituts, 1869)

An Index of equine research - United States. Department of Agriculture. Science; Education Staff. (1972)

An Index of equine research - United States. Department of Agriculture. Science; Education Staff. (1975)

Index to information on insects associated with western wildland shrubs - Nelson, David L. (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1988)

Index to the known fossil insects of the world : including myriopods and arachnids - Geological Survey (U.S.) (Department of the Interior, Geological Survey, 1891)

Index to the literature of American economic entomology - American Association of Economic Entomologists (American Association of Economic Entomologists [etc.], 1905)

Index to the literature of American economic entomology - American Association of Economic Entomologists (American Association of Economic Entomologists [etc.], 1915)

Indian insect life : a manual of the insects of the plains (tropical India) - Maxwell-Lefroy, H. (Harold), 1877 -1925 (Thacker, Spink & Co., W. Thacker & Co., 2 Creed Lane, London, 1909)

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Injurious insects : how to recognize and control them - O'Kane, Walter Collins, 1877 - (Macmillan, 1912)