Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1873)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1882)

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, 1897)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1900)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1901)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1902)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1904)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1905)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1907)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1908)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1909)

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

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1911)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1912)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1913)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1915)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1917)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1921)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1859)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1877)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1876)

Die ichneumonen der forstinsecten in forstlicher und entomologischer beziehung; ein anhang zur Abbildung und beschreibung der forstinsecten - Ratzeburg, Julius Theodor Christian, 1801 -1871 (Nicolaischen Buchhandlung, 1844)

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)

Ichthyographia Chinae borealis - Vasilevskii, Stepan. ([s.n.], 1852)

Ichtyologie, ou, Histoire naturelle, générale et particulière des poissons : avec des figures enluminées, dessinées d'après nature - Bloch, Marcus Elieser, 1723 -1799 (Chez l'auteur, & chez François de la Garde libraire, 1788)

Icones piscium : indicem systematicum / addidit F. C. Kielsen - Kielsen, F. C. (Frederik Christian), 1774 -1850 (Christianus Steen, 1835)

Icones stirpium, seu, Plantarum tam exoticarum, quam indigenarum :in gratiam rei herbariae studiosorum in duas partes digestae : cum septem linguarum indicibus, ad diuersarum nationum vsum - Moretus, Jan 1543 -1610 (Ex officina plantiniana :Apud Viduam et Ioannem Moretum, 1591)

Iconografia della fauna italica : per le quattro classi degli animali vertebrati - Bonaparte, Charles-Lucien, 1803 -1857 (Tip. Salviucci, 1841)

Iconographia familiarum naturalium regni vegetabilis = Abbildungen der natürlichen Familien des Gewächsreiches : delineata atque adiectis familiarum characteribus adnotationibusque variis tum scientiam tum usum spectantibus exornata - Schnizlein, Adalbert, 1814 -1868 (M. Cohen, 1843)

Ilgenfritz Monroe Nursery : No. 97 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (I.E. Ilgenfritz Sons & Co, 1943)

Illinois Audubon bulletin - Illinois Audubon Society. (Illinois Audubon Society, 1939)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1997)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1913)

An illustrated flora of the northern United States, Canada and the British possesions from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian. Vol. 3, Apocynaceae to Compositae, dogbane to thistle - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner, 1896)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian - Britton, Nathaniel Lord, 1859 -1934 (C. Scribner's sons, 1913)

An illustrated flora of the Pacific States: Washington, Oregon, and California - Abrams, Le Roy, 1874 -1956 (Stanford University Press, 1944)

An illustrated flora of the Pacific States: Washington, Oregon, and California - Abrams, Le Roy, 1874 -1956 (Stanford University Press, 1960)

An illustrated natural history of British butterflies and moths - Newman, Edward, 1801 -1876 (W.H. Allen, 1800)

Illustrated natural history of British butterflies and moths - Newman, Edward, 1801 -1876 (Glaisher, 1869)

An illustrated natural history of British moths - Newman, Edward, 1801 -1876 (Hardwicke and Bogue, 1874)

Illustratio in hortum siccum Andreae Caesalpini - Caruel, Teodoro, 1830 -1898 ([Typis Le Monnier], 1858)

Illustrationes florae insularum Maris Pacifici - Drake del Castillo, E. (Emmanuel), 1855 -1904 (G. Masson, 1866)

Illustrations of British birds - Mullens, W. H. (William Herbert), 1866 -1946 (Longman & Co, 1835)

Illustrations of Indian botany :or figures illustrative of each of the natural orders of Indian plants, described in the author's prodromus florae peninsulae Indiae orientalis - Wight, Robert, 1796 -1872 (published by J. B. Pharoah for the author, 1840)

Illustrations of Indian zoology; chiefly selected from the collection of Major-General Hardwicke ... - Gray, John Edward 1800 -1875 (Treuttel, Wurtz, Treuttel, Jun. and Richter, 1830)

Illustrations of the botany and other branches of the natural history of the Himalayan Mountains :and of the flora of Cashmere - Royle, J. Forbes (John Forbes), 1798 -1858 (Wm. H. Allen, 1839)

Illustrations of the comparative anatomy of the nervous system - Swan, Joseph, 1791 -1874 (Bradbury and Evans, 1864)

Illustrations of the natural history of Worcestershire : with information on the statistics ... - Worcestershire Natural History Society. (Lees, 1834)

Illustrierte Wochenschrift für Entomologie - Berliner Entomologische Gesellschaft. (J. Neumann, 1896)

Illustrierte Zeitschrift für Entomologie - Allgemeine Entomologische Gesellschaft. (J. Neumann, 1899)

Illustriertes Handbuch der Laubholzkunde; Charakteristik der in Mitteleuropa heimischen und im Freien angepflanzten angiospermen Gehölz-Arten und Formen mit Ausschluss der Bambuseen und Kakteen. Register - Schneider, Camillo, 1876 -1951 (G. Fischer, 1912)

Die im nordwestlichen Neuvorpommern bisher beobachteten Grossschmetterlinge : mit besonderer Berücksichtigung der näheren Umgegend Stralsunds : ein Beitrag zur Makrolepidopterenfauna Pommerns. Erster Teil, Die Rhopalocéren und Heterocéren ausser den Geometriden - Spormann, Karl. (Druck der Königlichen Regierungs-Buchdr, 1907)

Immigrant plants in the Hawaiian islands. II - Fosberg, F. Raymond (Francis Raymond), 1908 -1993 (The University, 1948)

Important bird areas in Kenya - National Museums of Kenya. Department of Ornithology. (Nature Kenya, East Africa Natural History Society, 1999)

In Codicem botanicum linnaeanum index alphabeticus : generum, specierum ac synonymorum omnium completissimus - Linné, Carl von, 1707 -1778 (O. Wigand, 1840)

In hoc volumine continentur Valerii Cordi ... Annotationes in Pedacii Dioscoridis Anazarbei De medica materia libros V : longè aliae quàm ante hac sunt evulgatae. Ejusdem Val. Cordi Historiae stirpium Lib. IIII. posthumi, nunc primùm in lucem editi, adjectis etiam stirpium iconibus, & brevissimus annotatiunculis. Sylva, qua rerum fossilium in Germania plurimarum, metallorum, lapidum & stirpium aliquot rariorum notitiam brevissimè persequitur, nunquam hactenus visa. De artificiosis extractionibus liber. Compositiones medicinales aliquot, non vulgares. His accedunt Stocc-Hornii et Nessi in Bernatium Helvetiorum ditione montium, & nascentium in eis stirpium, descriptio Benedicti Aretii ... Item Conradi Gesneri De hortus Germaniae, liber recens, unà cum descriptione tulipae turcarum, chamaecerasi montani, chamaemespili, chamaenerii, & conozoidis ... Omnia summa studio atque industria ... Conr. Gesneri ... collecta, & praefationibus illustrata - Aretius, Benedictus, 1574 (Excudebat Iosias Rihelius, 1561)

In the field : the bulletin of the Field Museum of Natural History - Field Museum of Natural History. (Field Museum of Natural History, 2015)

Index alphabeticus generum botanicorum quotquot a Willdenovio in Speciebus plantarum et a Persoonio in Synopsi plantarum recensentur - Lichtenstein, A. G. G. (August Gerhard Gottfried), 1780 -1851 (Leuckartiorum patris et filii, 1814)

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 animalium; sive, Index nominum quae ab A. D. MDCCLVIII generibus et speeiebus animalium imposita sunt - Sherborn, Charles Davies, 1861 -1942 (e typographio academico, 1902)

Index Diatomaceaearum, 1896-99 - Chase, H. H. (Harvey Henderson), 1849 -1915 (1900)

Index entomologicus; or, A complete illustrated catalogue, consisting of upwards of two thousand accurately coloured figures of the lepidopterous insects of Great Britain - Westwood, J. O. (John Obadiah), 1805 -1893 (1854)

Index entomologicus; or, A complete illustrated catalogue, consisting of upwards of two thousand accurately coloured figures of the lepidopterous insects of Great Britain - Westwood, J. O. (John Obadiah), 1805 -1893 (G. Willis, 1854)

Index entomologicus; or, A complete illustrated catalogue, consisting of upwards of two thousand accurately coloured figures of the lepidopterous insects of Great Britain - Westwood, J. O. (John Obadiah), 1805 -1893 (John Obadiah, 1854)

Index entomologicus, or, A complete illustrated catalogue, consisting of 1944 figures, of the lepidopterous insects of Great Britain - Wood, W. (William), 1774 -1857 (William Wood, 1839)

Index generum avium. A list of the genera and subgenera of birds - Waterhouse, Frederick Herschel, 1845 -1919 (R. H. Porter, 1889)

Index generum avium : a list of the genera and subgenera of birds - Waterhouse, Frederick Herschel, 1845 -1919 (R.H. Porter, 1889)

Index generum phanerogamorum usque ad finem anni 1887 promulgatorum in Benthami et Hookeri "Genera plantarum" fundatus, cum numero specierum synonymis et area geographica - Bentham, George, 1800 -1884 (Sumptibus auctoris, 1888)

Index herbariorum - International Association for Plant Taxonomy (Published and Distributed for International Association for Plant Taxonomy by New York Botanical Gardens, 1990)

Index Kewensis plantarum phanerogamarum : nomina et synonym omnium generum et specierum a linnaeo usque as annum MDCCLXXXV complectans nomine recepro auctore patria unicuique planta subjectis : sumptibus beati Caroli Roberti Darwin ductu et consilio Josephi D. Hooker. Tomus 1-2 = Index Kewensis : an enumeration of the genera and species of flowering plants from the time of Linnaeus to the year 1885 inclusive together with their authors names, the works in which they were first published, their native countries and thei - Hooker, Joseph Dalton, 1817 -1911 (Clarendon Press, 1893)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCLXVI usque ad finem anni MDCCCCLXX nonnulla etiam antea edita complectens. Supplementum quintum decimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano, 1901)

Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCLVI usque ad finem anni MDCCCCLX nonnulla etiam antea edita complectens. Supplementum tertium decimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano, 1901)

Index rerum naturalium quae conservantur in Museo Academico Groningano = Naamlijst der voorwerpen van natuurlijke historie welke bewaard worden in het Akademisch Museum te Groningen - Swinderen, Theodorus van, 1784 -1851 (Bij J. Oomkens, Akademie-drukker, 1822)

Index to the genera of birds - McGregor, Richard C. (Richard Crittenden), 1871 -1936 (Bureau of Printing, 1920)

Index to the Linnean Herbarium : with indication of the types of species marked by Carl von Linné - Jackson, Benjamin Daydon, 1846 -1927 (Printed for the Linnean society by Taylor and Francis, 1912)

An index to the scientific contents of the Journal and Proceedings of the Academy of Natural Sciences of Philadelphia [1817-1910] Published in commemoration of the centenary of the academy, March 21, 1912 - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences, 1912)

India rubber world (Bill Brothers Publishing Corp, 1907)

The insect hunter's companion : being instructions for collecting and preserving butterflies and moths and comprising an essay on pupa digging - Newman, Edward, 1801 -1876 (J. Van Voorst, 1870)

Insecta Lapponica - Zetterstedt, Johan Wilhelm, 1785 -1874 (Voss, 1840)

Insects. A catalogue of the extensive and valuable collection of British & foreign insects, of the late Adrian Hardy Haworth, Esq ... which will be sold by auction - Stevens, J. C. (Stirling [1834?], 1834)

Insekten-Börse (1887)

Insekten-Börse (1888)

Insekten-Börse (1889)

Insekten-Börse (1890)

Insekten-Börse (1891)