On the domesticated animals of the British islands : comprehending the natural and economical history of species and varieties; the description of the properties of external form; and observations on the principles and practice of breeding - Low, David, 1786 -1859 (Longman, Brown, Green & Longmans, 1845)

On the domesticated animals of the British islands: comprehending the natural and economical history of species and varieties; the description of the properties of external form; and observations on the principles and practice of breeding - Low, David, 1786 -1859 (Longman, Brown, Green, & Longmans, 1846)

On the intestinal tract of birds; with remarks on the valuation and nomenclature of zoological characters - Mitchell, P. Chalmers Sir, (Peter Chalmers), 1864 -1945 (1901)

On the natural history and classification of birds - Swainson, William, 1789 -1855 (John Taylor, 1836)

On the Natural History and classification of Birds : vol. I and II - Swainson, William, 1789 -1855 (pr. for Longman [etc.], 1836)

On the phenomena of hybridity in the genus homo - Broca, Paul, 1824 -1880 (Pub. for the Anthropological society, by Longman, Green, Longman, & Roberts, 1864)

On the phenomena of hybridity in the genus homo - Broca, Paul, 1824 -1880 (Published for the Anthropological Society by Longman, Green, Longman, & Roberts, 1864)

On the phenomena of hybridity in the genus Homo - Lubbock, John, Sir, 1834 -1913 (Published for the Anthropological Society, by Longman, Green, Longman, & Roberts, 1864)

Onomatologia Anatomica. Geschichte und Kritik der anatomischen Sprache der Gegenwart, mit besonderer Berücksichtigung ihrer Barbarismen, Widersinnigkeiten, Tropen und grammatikalischen Fehler - Hyrtl, Joseph, 1811 -1894 (W. Braumüller, 1880)

The oölogist (J.M. Wade, 1879)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1887)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1889)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1890)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1897)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1913)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1922)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1923)

The oölogist's record (Harrison and Sons, 1921)

The oölogist's record (Harrison and Sons, 1923)

Oologia neerlandica : eggs of birds breeding in the Netherlands - Lechner, Arnold Anthon van Pelt (Nijhoff, 1911)

Ootheca Wolleyana: an illustrated catalogue of the collection of birds' eggs - Newton, Alfred, 1829 -1907 (sold by R. H. Porter, 1864)

Ootheca Wolleyana: an illustrated catalogue of the collection of birds' eggs - Newton, Alfred, 1829 -1907 (sold by R. H. Porter, 1902)

Ootheca Wolleyana: an illustrated catalogue of the collection of birds' eggs - Newton, Alfred, 1829 -1907 (sold by R. H. Porter, 1907)

The open air - Jefferies, Richard, 1848 -1887 (Chatto & Windus, 1885)

Opera ornithologica - Bonaparte, Charles-Lucien, 1803 -1857 (1857)

Oppian, Colluthus, Tryphiodorus, with an English translation by A.W. Mair - Colluthus, of Lycopolis. (W. Heinemann, 1928)

The Orange County stud book : giving a history of all noted stallions bred and raised in Orange County ; together with symptoms and treatment of the diseases of the horse - Reeves, J. H. (Davidson, 1875)

The Orange County stud book, giving a history of all noted stallions bred and raised in Orange County; together with symptoms and treatment of the diseases of the horse - Reeves, J. H. (Davidson, 1875)

Orchard and farm (Calkins Newspaper Syndicate, 1898)

Orchard and farm (Calkins Newspaper Syndicate, 1924)

Orchard and farm (Calkins Newspaper Syndicate, 1922)

Oregon laws and regulations relating to the work of live stock sanitation - Oregon. (State printing department, 1919)

The Oregon naturalist (Naturalist Pub. Co, 1895)

The origin and influence of the thoroughbred horse - Ridgeway, William, Sir, 1853 -1926 (University Press, 1905)

The origin of the British flora - Reid, Clement, 1853 -1916 (Dulau, 1899)

Original handbook for riders; a complete guide to modern horsemanship - Grimsgaard, Martin Christinius, 1850 - (Priv. print. [The Winthrop press], 1911)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1885)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1886)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1887)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1888)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1889)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1890)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1891)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1895)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1896)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1898)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1899)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1903)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1904)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1910)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1905)

Ornis Caucasica. Die Vogelwelt des Kaukasus : systematisch und biologisch-geographisch beschrieben - Radde, Gustav, 1831 -1903 (Verlag von Theodor Fischer, 1884)

Ornithologia methodice digesta, atque iconibus aeneis ad vivum illuminatis ornata - Lorenzi, Lorenzo. (In Aedibus Mouchianis, 1767)

Ornithologia, sive, Synopsis methodica sistens avium divisionem in ordines, sectiones, genera, species, ipsarumque varietates : cum brevi & accurata cujusque speciei descriptione, citationibus auctorum de iis tractantium, nominibus eis ab ipsis impositis, nominibusque vulgaribus - Brisson, Mathurin-Jacques, 1723 -1806 (Apud Theodorum Haak, 1763)

Ornithological bibliography - Coues, Elliott, 1842 -1899 (Geological Survey [etc.], 1878)

Ornithological biography, or an account of the habits of the birds of the United States of America ; accompanied by descriptions of the objects represented in the work entitled The Birds of America, and interspersed with delineations of American scenery and manners - Audubon, John James, 1785 -1851 (Adam Black, 1838)

Ornithological dictionary of British birds - Rennie, James, 1787 -1867 (Hurst, Chance, 1831)

Ornithological dictionary of British birds - Rennie, James, 1787 -1867 (W. S. Orr & W. Smith, 1833)

The ornithological guide - Wood, Charles Thorold. (Whittaker, 1835)

An ornithological index, arranged according to the synopsis avium of Mr. Vigors / by T. B. L. Baker - Vigors, N. A.‏ ‎ (Nicholas Aylward),‏ ‎ 1785 -1840 (Printed by R. Taylor, 1835)

Ornithological miscellany - Mintern Bros., (Trübner and Co., Bernard Quaritch, R.H. Porter, 1876)

Ornithological miscellany - Mintern Bros., (Trübner and Co., Bernard Quaritch, R.H. Porter, 1877)

Ornithological rambles in Sussex : with a systematic catalogue of the birds of that county, and remarks on their local distribution - Knox, Arthur Edward (J. Van Voorst, 1849)

Ornithological rambles in Sussex: with a systematic catalogue of the birds of that country, and remarks on their local distribution - Knox, Arthur Edward (J. Van Voarst, 1850)

Ornithological rambles in Sussex : with a systematic catalogue of the birds of that county, and remarks on their local distribution / by A.E. Knox - Knox, Arthur Edward (J. Van Voorst, 1855)

Ornithological report - Yorkshire Naturalists' Union (Yorkshire Naturalists' Union, 1986)

Ornithological report upon collections made in portions of California, Nevada, and Oregon - Henshaw, Henry W. (Henry Wetherbee), 1850 -1930 (1879)

Ornithological synonyms - Strickland, Catherine Dorcas Maule Jardine (J. Van Voorst, 1855)