Index generum mammalium: a list of the genera and families of mammals - Merriam, C. Hart (Clinton Hart), 1855 -1942 (Govt. Print. Off, 1904)

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

Insect biodiversity and dead wood : proceedings of a symposium for the 22nd International Congress of Entomology - Hanula, James L. (James Lee), 1955 - (U.S. Dept. of Agriculture, Forest Service, Southern Research Station, 2006)

Insect variety: its propagation and distribution. Treating of the odours, dances, colours, and music in all grasshoppers, Cicadae, and moths; beetles, leaf-insects, bees, and butterflies; bugs, flies, and Ephemerae; and exhibiting the bearing of the science of entomology on geology - Swinton, Archibald Henry. (Cassell, Petter, Galpin & co, 1880)

Insekten-Börse (1898)

Instinct and intelligence - Macnamara, Nottidge Charles, 1832 -1918 (H. Frowde, 1915)

Instinct and intelligence - Macnamara, Nottidge Charles, 1832 -1918 (Frowde, 1915)

Het Instituut of Verslagen en Mededeelingen, uitgegeven door de vier Klassen van het Koninklijk-Nederlandsch Instituut van Wetenschappen, Letterkunde en Schoone Kunsten - Koninklijk-Nederlandsch Instituut van Wetenschappen Letterkunde en Schoone Kunsten. (1841)

Het Instituut of Verslagen en Mededeelingen, uitgegeven door de vier Klassen van het Koninklijk-Nederlandsch Instituut van Wetenschappen, Letterkunde en Schoone Kunsten - Koninklijk-Nederlandsch Instituut van Wetenschappen Letterkunde en Schoone Kunsten. (1843)

The intelligence of animals - Menault, Ernest, 1830 -1903 (C. Scribner & co, 1870)

The intelligence of animals - Menault, Ernest, 1830 -1903 (C. Scribner & co, 1885)

The internal secretions of the sex glands; the problem of the "puberty gland" - Lipschütz, Alexander, 1883 - (Heffer, 1924)

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 - 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, 1905)

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, 1910)

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, 1916)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1917)

International Congress of Arts and Science - Rogers, Howard Jason, 1861 - (University Alliance, 1908)

Internationale Monatsschrift für Anatomie und Histologie (1884)

Internationale Monatsschrift für Anatomie und Histologie (1885)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1890)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1895)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1905)

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

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1914)

Introduction to entomology. [Beetles. British butterflies. British moths, sphinxes, &c. Foreign butterflies. Bees. Exotic moths] - Duncan, James, 1804 -1861 (W.H. Lizars [etc.], 1843)

An introduction to geology - Scott, William Berryman, 1858 -1947 (The Macmillan Company, 1897)

An introduction to geology : and its associate sciences mineralogy, fossil botany, and palaeontology - Wright, Thomas, 1809 -1884 (H. G. Bohn, 1855)

Introduction to mammalia - Smith, Charles Hamilton, 1776 -1859 (W. H. Lizars, 1858)

Introduction to mammalia - Smith, Charles Hamilton, 1776 -1859 (Chatto & Windus, 1840)

An introduction to Marmosops (Marsupialia, Didelphidae), with the description of a new species from Bolivia and notes on the taxonomy and distribution of other Bolivian forms - Voss, Robert S. (American Museum of Natural History, 2004)

An introduction to palaeontology - Davies, A. Morley (Arthur Morley), 1869 -1959 (Morby, 1920)

An introduction to palaeontology - Davies, A. Morley (Arthur Morley), 1869 -1959 (T. Murby, 1920)

An introduction to the classification of animals - Huxley, Thomas Henry, 1825 -1895 (J. Churchill & sons, 1869)

An introduction to the mammalian dentition - Todd, T. Wingate (Thomas Wingate), 1885 -1938 (C.V. Mosby company, 1918)

An introduction to the mammalian dentition - Todd, T. Wingate (Thomas Wingate), 1885 -1938 (C. V. Mosby company, 1918)

An introduction to the mammals of Australia - Gould, John 1804 -1881 (Printed for the author by Taylor and Francis, 1863)

An introduction to the osteology of the Mammalia - Flower, William Henry, 1831 -1899 (Macmillan, 1885)

An introduction to the osteology of the mammalia : being the substance of the course of lectures delivered at the Royal College of Surgeons of England in 1870 - Flower, William Henry, 1831 -1899 (Macmillan, 1870)