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 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)

Illustrations of the natural history of Worcestershire : with information on the statistics ... - Worcestershire Natural History Society. (Lees, 1834)

Illustrations of the nests and eggs of birds of Ohio : with text - Jones, Howard, 1853 -1945 ([s.n.], 1886)

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)

Important bird areas in Kenya - National Museums of Kenya. Department of Ornithology. (Nature Kenya, East Africa Natural History Society, 1999)

In Sachen Darwin's insbesondere contra Wigand - Jaeger, Gustav. (E. Schweizerbart, 1874)

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, 1892)