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, 1913)

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

Handbuch der Forstwissenschaft - Lorey, Tuisko von, 1845 -1901 (H. Laupp, 1912)

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 vergleichenden Embryologie - Balfour, Francis M. (Francis Maitland), 1851 -1882 (Fischer, 1880)

Handbuch der Zoologie - Peters, Wilhelm C. H. (Wilhelm C. Hartwig), 1815 -1883 (W. Engelmann, 1875)

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 der zoologie : Nach der zweiten holländischen ausgabe - Hoeven, Jan van der, 1801 -1868 (L. Voss, 1850)

Handbuch der zoologie - Carus, Julius Victor, 1823 -1903 (W. Engelmann, 1863)

Handbuch des Getreidebaues - Werner, Hugo, Dr. (Parey, 1885)

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, 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, 1893)

Harriman Alaska series. vol. I-V, VIII-XIV - Smithsonian Institution (Smithsonian Institution, 1904)

Harvard botanical memoirs - Harvard University. (Harvard University], 1888)

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

The hebes group of the Dipterous genus Tipula linnaeus - Dietz, William George, 1848 -1932 (American Entomological Society, 1914)

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

The herpetology of Michigan - Smith, Harlan Ingersoll, 1872 -1940 (Wynkoop Hallenbeck Crawford, State Printers, 1912)

High arctic insect-flower relations : the inter-relationships of arthropods and flowers at Lake Hazen, Ellesmere Island, N.W.T., Canada - Kevan, Peter G., 1944 - (University of Alberta, Dept. of Entomology, 1970)

Historia naturalis bulgarica - Bŭlgarska akademii︠a︡ na naukite. (Bulgarska akademiia na naukite, 1995)

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The history of Glanville's Wootton, in the County of dorset, including its zoology and botany - Dale, Charles William, 1851 -1906 (Hatchards, 1878)

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A history of the birds of Europe : including all the species inhabiting the western palaearctic region - Sharpe, Richard Bowdler, 1847 -1909 (Published by the Author, 1871)

A history of the earth and animated nature - Goldsmith, Oliver, 1730? -1774 (Blackie and son, 1840)

History of the earth and animated nature; with numerous notes from the works of the most distinguished British and foreign naturalists - Goldsmith, Oliver, 1730? -1774 (1859)

A history of the fossil insects in the secondary rocks of England. Accompanied by a particular account of the strata in which they occur, and of the circumstances connected with their preservation - Brodie, Peter Bellinger, 1815 -1897 (J.van Voorst, 1845)

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

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

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Horae Societatis Entomologicae Rossicae, variis sermonibus in Rossia usitatis editae - Russkoe ėntomologicheskoe obshchestvo. (Typis V. Besobrasovi & Comp, 1885)

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How time flies for flies : diverse Diptera from the Triassic of Virginia and early radiation of the order - Grimaldi, David A. (American Museum of Natural History, 2007)

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)

Hydrologic and climatologic data, southeastern Uinta basin, Utah and Colorado : water year 1978 - United States. Environmental Protection Agency. (U.S. Dept. of the Interior, Geological Survey, 1980)

Hymenoptera of America north of Mexico : synoptic catalog - Krombein, Karl V. (U.S. Dept. of Agriculture, 1951)

Ichneumonologia brittannica. The ichneumons of Great Britain; a descriptive account of the families, genera and species indigenous to the British islands, together with notes as to classifiation, localitites, habitats, host, etc - Morley, Claude 1874 -1951 (J.H. Keys, 1903)

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

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, 1924)

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

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1979)

Illinois birds: Mimidae - Graber, Jean W. (Jean Weber), 1924 -2015 (State of Illinois, Natural History Survey Division, 1970)

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

The illustrated dictionary of gardening :a practical and scientific encyclopædia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (L.U. Gill, 1884)

An illustrated dictionary of scientific terms - Rossiter, William, 1897 (G. P. Putnam's Sons, 1878)

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

Illustrated natural history of the animal kingdom, being a systematic and popular description of the habits, structure, and classification of animals from the highest to the lowest forms, with their relations to agriculture, commerce, manufactures, and the arts - Goodrich, Samuel G. (Samuel Griswold), 1793 -1860 (Derby & Jackson, 1865)

Illustrations of British entomology; or, A synopsis of indigenous insects: containing their generic and specific distinctions - Stephens, James Francis, 1792 -1853 (Printed for the author; published by Baldwin and Cradock, 1829)

Illustrierte Wochenschrift für Entomologie - Berliner Entomologische Gesellschaft. (J. Neumann, 1897)

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

Index animalium; sive, Index nominum quae ab A. D. MDCCLVIII generibus et speeiebus animalium imposita sunt - Sherborn, Charles Davies, 1861 -1942 (e typographio academico, 1801)

Index palaeontologicus : oder Übersicht der bis jetzt bekannten fossilen Organismen - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweitzerbart, 1848)

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)