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)

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)

An index to the generic and trivial names of animals, described by Linnaeus, in the 10th and 12th editions of his "Systema naturae." - Sherborn, Charles Davies, 1861 -1942 (Dulau & co, 1899)

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 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.], 1881)

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)

The influence of man on animal life in Scotland; study in faunal evolution - Ritchie, James, 1882 - (University press, 1920)

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)

Insectes nuisibles aux habitations et moyens de les combattre : (avec chapitre sur les animaux nuisibles autres que les insectes) - Twinn, C. R. (Cecil Raymond) (Abbaye Sainte-Marie-des-deux-Montagnes, 1900)

Insektenbörse (Alfred Kernen, 1911)

Insektenbörse (Alfred Kernen, 1918)

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

Institutiones pharmacologiae sive Materiae medicae. : Communicat in usum tironum - Hildenbrand, Johann Valentin Von, 1763 -1818 (Apud I.G. Binz, 1802)

Instrucciones para la exportación de frutas, formuladas por orden de la Secretaria de Fomento - Mexico. Secretaría de Fomento (Secretaria de Fomento, 1896)

International catalogue of scientific literature - 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, 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, 1911)

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)

Internationale Monatsschrift für Anatomie und Histologie (1884)

Internationale Monatsschrift für Anatomie und Physiologie (G. Thieme [et al.,], 1901)

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

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

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

Introduction and succession of vertebrate life in America. An address delivered before the American Association for the Advancement of Science, at Nashville, Tenn, August 30, 1877 - Marsh, Othniel Charles, 1831 -1899 (Tuttle, Morehouse & Taylor, Printers, 1878)

Introduction and succession of vertebrate life in America. An address delivered before the American association for the advancement of science, at Nashville, Tenn., August 30, 1877 - Marsh, Othniel Charles, 1831 -1899 (Tuttle, Morehouse & Taylor, printers, 1878)

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 the comparative anatomy of animals : compiled with constant reference to physiology, and elucidated by twenty copper-plates - Carus, Carl Gustav, 1789 -1869 (Longman, Rees, Orme, Brown, and Green, 1827)

An introduction to the comparative anatomy of animals compiled with constant reference to physiology, and elucidated by twenty copper-plates - Carus, Carl Gustav, 1789 -1869 (Longman, Rees, Orme, Brown, and Green, 1827)

An introduction to the ornithology of Cuvier : for the use of students and travellers - Royal College of Physicians of London. (Treuttel & Würtz, 1821)

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)

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, 1876)

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, 1876)

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

An introduction to the study of mammals living and extinct - Flower, William Henry, 1831 -1899 (A. and C. Black, 1891)

An introduction to the study of mammals, living and extinct - Flower, William Henry, 1831 -1899 (A. and C. Black, 1891)

An introduction to the systematic zoology and morphology of vertebrate animals - Macalister, Alexander, 1844 -1919 (Hodges, Foster and Figgis, 1878)

An introduction to zoology - Gosse, Philip Henry, 1810 -1888 (Printed for the Society for promoting Christian knowledge, 1844)

An introduction to zoology, for the use of High schools - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (Copp, Clark, 1889)

An introduction to zoology : for the use of high schools - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (Copp, Clark Co, 1889)

An introduction to zoology for the use of high schools - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (Copp, Clark, 1889)

Introduction to zoology, for the use of schools - Patterson, Robert, 1802 -1872 (Simms and M'Intyre, A. Chambers, 1848)

Io. Christ. Polyc. Erxleben Phil. D. ... Systema regni animalis per classes, ordines, genera, species, varietates : cvm synonymia et historia animalivm : Classis I. Mammalia - Erxleben, Johann Christian Polycarp, 1744 -1777 (Impensis Weygandianis, 1777)

Iowa bird life - Iowa Ornithologists' Union. (Iowa Ornithologists' Union, 1978)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1892)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1903)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1923)

Isis, oder, Encyclopädische Zeitung von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1818)

Isis, oder, Encyclopädische Zeitung von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1819)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1820)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1822)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1824)