Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1920)

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, 1922)

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)

Icones animalium quadrupedum uiuiparorum et ouiparorum : quae in Historiae animalium Conradi Gesneri libro I. et II. describuntur, cum nomenclaturis singulorum latinis, graecis, italicis, gallicis, et germanicis plerunque, et aliarum quoque linguarum, certis ordinibus digestae - Gessner, Conrad, 1516 -1565 (Excudebat C. Froschouerus, 1560)

Icones avivm omnivm - Gessner, Conrad, 1516 -1565 (Excvudebat C. Froschovervus, 1560)

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

An illustrated manual of British birds - Saunders, Howard, 1835 -1907 (Gurney and Jackson, 1899)

An illustrated manual of British birds - Saunders, Howard, 1835 -1907 (Gurney and Jackson, 1889)

The illustrated natural history - Wood, J. G. (John George), 1827 -1889 (G. Routledge, 1880)

The illustrated natural history - Goode, G. Brown (George Brown), 1851 -1896 (Routledge, Warne and Routledge, 1862)

Illustrations of British ornithology - Selby, Prideaux John, 1788 -1867 (Printed for the proprietor, and published by W.H. Lizars ; London : Longman, Rees, Orme, Brown, Green and Longman ; Dublin : W. Curry Jun. & Co, 1833)

Illustrations of Indian ornithology : containing fifty figures of new, unfigured and interesting species of birds, chiefly from the south of India - Jerdon, T. C. (Thomas Claverhill), 1811 -1872 (Printed by P.R. Hunt, American Mission Press, 1847)

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)

Illustriertes Forst- und Jagd- Lexikon. Unter Mitwirkung von Dr. Bühler [et al.] - Fürst, Hermann Heinrich von, 1837 - (P. Parey, 1904)

Illustrirte naturgeschichte des thierreichs - Poeppig, Eduard, 1798 -1868 (J.J. Weber, 1851)

Illustrirtes Thierleben - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliogr. Instituts, 1867)

Illustrirtes Thierleben. Für Schule und Haus - Dümling, Hermann. (G. Brumder, 1879)

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)