Illustrated natural history of the animal kingdom, being a systematic and popular description of the habits, structure, and classification of animals from the highest to the lowest forms, with their relations to agriculture, commerce, manufactures, and the arts - Goodrich, Samuel G. (Samuel Griswold), 1793 -1860 (Derby & Jackson, 1865)

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 British ornithology. Part first, Land birds - Selby, Prideaux John, 1788 -1867 (Printed for Archibald Constable & Co. ; London : Hurst, Robinson, & Co, 1825)

Illustrations of instinct, deduced from the habits of British animals - Couch, Jonathan, 1789 -1870 (J. van Voorst, 1847)

Illustrations of ornithology - Lear, Edward, 1812 -1888 (Published by W.H. Lizars, 1826)

Illustrations of the American ornithology of Alexander Wilson and Charles Lucian Bonaparte : with the addition of numerous recently discovered species and representations of the whole sylvae of North America - Bonaparte, Charles-Lucien, 1803 -1857 (Frazer & Co, 1835)

Illustrations of the birds of California, Texas, Oregon, British and Russian America. : Intended to contain descriptions and figures of all North American birds not given by former American authors, and a general synopsis of North American ornithology - Cassin, John, 1813 -1869 (J.B. Lippincott & Co, 1862)

Illustrations of zoology. The engravings by F.W. Lowry and Thomas Landseer (John Joseph Griffin and Co, 1851)

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

Illustrirtes Thierleben - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliogr. Instituts, 1866)

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

Illustrirtes Thierleben - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliogr. Instituts, 1869)

An improved PCR-based method for gender identification in birds - Conway, Warren C (Museum of Texas Tech University, 2004)

Incidents of travel in Yucatan - Stephens, John L., 1805 -1852 (Harper & Brothers, 1843)

Incidents of travel in Yucatan - Catherwood, Frederick, 1799 -1854 (Harper & Brothers, 1843)

Index ad Caroli Luciani Bonaparte Conspectum generum avium - Bonaparte, Charles-Lucien, 1803 -1857 (apud E. J. Brill, 1865)

Index animalium; sive, Index nominum quae ab A. D. MDCCLVIII generibus et speeiebus animalium imposita sunt - Sherborn, Charles Davies, 1861 -1942 (e typographio academico, 1758)

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)