Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1861)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1862)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1864)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1865)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1871)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1872)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1873)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1874)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1875)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1876)

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, 1878)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1879)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1880)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1881)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1882)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1994)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1890)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1892)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1894)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1898)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1899)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1900)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1901)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1902)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1905)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1906)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1907)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1908)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1910)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1911)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1913)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1914)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1915)

Ibis - British Ornithologists' Union (Published for the British Ornithologists' Union by Academic Press, 1917)

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)

Icones ornithopterorum : a monograph of the Papilionine tribe Troides of Hubner, or Ornithoptera [bird-wing butterflies] of Boisduval - Rippon, Robert H. F. (Published by the author ... Upper Norwood, London, S.E, 1906)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1914)

Illinois biological monographs - University of Illinois at Urbana-Champaign. (Univ. of Illinois Press, 1915)

The illustrated book of canaries and cage-birds, British and foreign - Swaysland, W. (Cassell, Petter, Galpin & Co, 1878)

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

Illustrations of the family of Psittacidœ, or parrots : the greater part of them species hitherto unfigured, containing forty-two lithographic plates, drawn from life, and on stone - Lear, Edward, 1812 -1888 (Published by E. Lear, 1832)

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

Incidents of a collector's rambles in Australia, New Zealand, and New Guinea - Denton, Sherman F. (Sherman Foote), 1856 -1937 (Lee and Shepard, 1889)

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, 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)