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 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)

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

Index plantarum Japonicarum, sive, Enumeratio plantarum omnium ex insulis Kurile, Yezo, Nippon, Sikoku, Kiusiu, Liukiu, et Formosa hucusque cognitarum systematice et alphabetice disposita adjectis synonymis selectis, nominibus Japonicis, locis natalibus - Matsumura, Jinzo, 1856 -1928 (Apud Maruzen, 1904)

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 fossil remains of Aves, Ornithosauria, and Reptilia, from the secondary system of strata arranged in the Woodwardian Museum of the University of Cambridge - Seeley, H. G. (Harry Govier), 1839 -1909 (Deighton, Bell, and co, 1869)

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)

Index to the stratigraphy of North America - Willis, Bailey, 1857 -1949 (Govt. Print. Off, 1912)

Index to volume I, numbers 1 to 17 (Field Columbian Museum, 1900)

Indian Tertiary and post Tertiary Vertebrata - Lydekker, Richard, 1849 -1915 (Geological Survey Office [etc., etc.], 1884)

Indian Tertiary and post Tertiary Vertebrata - Lydekker, Richard, 1849 -1915 (Geological Survey Office [etc., etc.], 1886)

Informe oficial de la Comisión científica agregada al Estado Mayor general de la expedicion al Rio Negro (Patagonia) realizada en los meses de Abril, Mayo y Junio de 1879, bajo las órdenes del general d. Julio A. Roca (con 16 láminas) - Berg, Cárlos, 1843 -1902 (Imprenta de Ostwald y Martinez, 1881)

Die infusionsthierchen als vollkommene organismen. Ein blick in das tiefere organische leben der natur - Ehrenberg, Christian Gottfried, 1795 -1876 (L. Voss, 1838)

Die Infusionsthierchen als vollkommene Organismen. Ein Blick in das tiefere organische Leben der Natur - Ehrenberg, Christian Gottfried, 1795 -1876 (L. Voss, 1838)

Les insectes : Traité élémentaire d'entomologie, comprenant l'histoire des esèces utiles et de leurs produits des espèces nuisibles et des moyens de les détruire, l'étude des métamorphoses et des moeurs, les procédés de chasses et de conversation - Girard, Maurice, 1822 -1886 (J.-B. Baillière, 1873)

Insekten-Börse (1886)

Insekten-Börse (1888)

Insekten-Börse (1892)

Insekten-Börse (1896)

Insekten-Börse (1897)

Die Insekten-Welt : Zeitschrift des Internationalen Entomologen-Vereins - Internationaler Entomologischer Verein. (1885)

Insektenbörse (Alfred Kernen, 1916)

Insektenbörse (Alfred Kernen, 1917)

Insektenbörse (Alfred Kernen, 1919)

Insektenbörse (Alfred Kernen, 1921)

Die Insektenwelt : ein Taschenbuch zu entomologischen Exkursionen für Lehrer und Lernende - Karsch, Dr., (Anton) 1822 -1892 (O. Lenz, 1883)

The Intellectual observer (Groombridge and Sons, 1866)

Intelligence in plants and animals - Gentry, Thomas G. (Thomas George), 1843 -1905 (Doubleday, Page & co, 1900)

Internal secretion and the ductless glands - Vincent, Swale. (Arnold, 1922)

The international bibliography of electron microscopy - New York Society of Electron Microscopists. (1959)

International catalogue of scientific literature N Zoology - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1901)

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 - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1904)

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, 1911)

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

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1913)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1914)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1915)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1916)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1920)

Internationale entomologische Zeitschrift - Internationales Entomologen-Bund. (Internationaler Entomologischer Verein E.V, 1907)

Internationale Monatsschrift für Anatomie und Histologie (1884)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1892)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1893)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1902)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1906)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1909)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1910)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1912)