The octopus : or, the "devil-fish" of fiction and of fact - Lee, Henry (Chapman and Hall, 1875)

Official lists and indexes of names and works in zoology. Supplement 1986-2000 - International Commission on Zoological Nomenclature (International Trust for Zoological Nomenclature, c/o Natural History Museum, 2001)

Official lists and indexes of names and works in zoology - International Commission on Zoological Nomenclature (ICZN, 1987)

Okens Lehrbuch der Naturgeschichte - Oken, Lorenz, 1779 -1851 (Bei Carl Heinrich Reclam, 1815)

On Aristotle as a biologist with a prooemion on Herbert Spencer; being the Herbert Spencer lecture delivered before the University of Oxford, on February 14, 1913 - Thompson, D'Arcy Wentworth, 1860 -1948 (Clarendon press, 1913)

On growth and form - Thompson, D'Arcy Wentworth, 1860 -1948 (University Press, 1945)

On Lepidoptera Heterocera from China, Japan, and Corea - Leech, John Henry, 1862 -1900 (1897)

On molecular and microscopic science - Somerville, Mary Fairfax, 1780 -1872 (J. Murray, 1869)

On molecular and microscopic science - Somerville, Mary, 1780 -1872 (J. Murray, 1869)

On the chief groups of the Cephalopoda - Wiltshire, Thomas. (1869)

On the frontier reminiscences of wild sports, personal adventures, and strange scenes - Campion, J. S. (Chapman & Hall, 1878)

On the physiology of digestion, respiration and excretion in echinoderms - Heyde, Henri Christiaan van der. (Gedrukt bij C. de Boer, jr, 1922)

On the physiology of digestion, respiration and excretion in echinoderms - Heyde, Henri Christiaan van der. (C. de Boer, 1922)

On the power, wisdom, and goodness of God : as manifested in the creation of animals, and in their history, habits, and instincts - Jones, Thomas Rymer, 1810 -1880 (H.G. Bohn, 1853)

On the power, wisdom and goodness of God, as manifested in the creation of animals, and in their history, habits and instincts - Kirby, William, 1759 -1850 (Carey, Lea & Blanchard, 1836)

On the power, wisdom and goodness of God as manifested in the creation of animals and in their history, habits and instincts - Kirby, William, 1759 -1850 (W. Pickering, 1835)

On the recent ziphioid whales : with a description of the skeleton of Berardius arnouxi - Flower, William Henry, 1831 -1899 (1872)

On the structure of the eye of the swordfish (Xiphias gladius, Lin.) - Royal College of Physicians of Edinburgh. ([s.n.], 1827)

One thousand questions in California agriculture answered - Wickson, Edward J. (Edward James), 1848 -1923 (Pacific rival press, 1914)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1919)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1945)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1954)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1969)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1977)

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

Oratio de florae mundi primigenii reliquis in Lithantracum fodinis praesertim conservatis, habita Gandae, 16 die mensis Maii anni M.D.CCC.XXII. cum in Academia Gandavensi ordinariam botanices, historiae naturalis et anatomiae comparatae professionem auspicaretur - Breda, Jacob Gijsbertus Samuël van, 1788 -1867 (Apud P.F. de Goesin-Verhaeghe, 1823)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1908)

Ornithologische Monatsschrift - Deutscher Verein zum Schutze der Vogelwelt. (Kommissions-Verlag der Creutschen Verlagsbuchhandlung, 1896)

[Orr's Circle of the sciences. A series of treatises on the principles of science, with their application to practical pursuits. Organic nature ... - Owen, Richard, 1804 -1892 (W.S. Orr, 1854)

Osmotischer Druck und Ionenlehre in den medicinischen Wissenschaften. Zugleich Lehrbuch physikalisch-chemischer Methoden - Hamburger, H. J. (Hartog Jacob), 1859 -1924 (J.F. Bergmann, 1904)

Otia conchologica : descriptions of shells and mollusks, from 1839 to 1862 - Gould, Augustus A. (Augustus Addison), 1805 -1866 (Gould and Lincoln, 1862)

Otia conchologica : descriptions of shells and mollusks from 1839 to 1862 / by Augustus A. Gould, M.D - Gould, Augustus A. (Augustus Addison), 1805 -1866 (1846)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1899)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1898)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1906)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1908)

Our 30th annual catalog : 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tillinghast Seed Co, 1915)

Our 32nd annual catalog : 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tillinghast Seed Co, 1917)

Our 33rd annual catalog. 1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tillinghast Seed Co, 1918)

Our country's shells and how to know them : a guide to the British mollusca - Gordon, W. J. (Simpkin, Marshall, Hamilton, Kent & Co, 1901)

Our face from fish to man; a portrait gallery of our ancient ancestors and kinsfolk together with a concise history of our best features - Gregory, William K. (William King), 1876 -1970 (G.P. Putnam's Sons, 1929)

Our living oceans : report on the status of U.S. living marine resources, 1992 - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1992)

Our living oceans : report on the status of U.S. living marine resources, 1999 - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1999)

Our living oceans the ... annual report on the status of U.S. living marine resources - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1991)

Our living oceans : the first annual report on the status of U.S. living marine resources - United States. National Oceanic; Atmospheric Administration. (U.S. Dept. of Commerce, 1991)

Our living world; an artistic edition of the Rev. J. G. Wood's Natural history of animate creation - Wood, J. G. (John George), 1827 -1889 (S. Hess, 1885)

Our use of the land - Brinser, Ayers. (Harper, 1939)

The out-door world, or, Young collector's handbook - Furneaux, William S. (Longmans, Green, 1893)

The outline of science : a plain story simply told - Thomson, J. Arthur (John Arthur), 1861 -1933 (G. P. Putnam's sons, 1922)

An outline of the natural history of our shores - Sinel, Joseph. (S. Sonnenschein, 1906)

An outline of the natural history of our shores - Sinel, Joseph. (Swan Sonnenschein & Co, 1906)

Outlines of comparative anatomy : intended principally for the use of students - Fyfe, Andrew, 1754 -1824 (Printed by J. Pillans & sons for Adam Black, South Bridge Street, 1813)

Outlines of comparative anatomy intended principally for the use of students - Fyfe, Andrew, 1754 -1824 (Printed by J. Pillans & Sons for Adam Black ... [etc.], 1818)

Outlines of comparative physiology : touching the structure and development of the races of animals, living and extinct - Agassiz, Louis, 1807 -1873 (H. G. Bohn, 1851)

Outlines of comparative physiology : touching the structure and development of the races of animals, living and extinct, for the use of schools and colleges - Agassiz, Louis, 1807 -1873 (Bell & Daldy, 1867)

Outlines of comparative physiology : touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges - Agassiz, Louis, 1807 -1873 (H.G. Bohn, 1851)

Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges - Agassiz, Louis, 1807 -1873 (Bell & Daldy, 1870)

Outlines of economic zoölogy - Reese, A. M. (Albert Moore), 1872 -1965 (P. Blakiston's Son & Co, 1919)

Outlines of general zoology - Baird, Spencer Fullerton, 1823 -1887 (Rudolph Garrigue, 1851)

Outlines of physiology : human and comparative - Royal College of Physicians of Edinburgh. (Longmans, Green, 1867)

Outlines of physiology, human and comparative - Marshall, John, 1818 -1891 (Lea, 1868)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (H. Frowde and Hodder & Stoughton, 1899)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Pentland, 1899)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Young J. Pentland, 1892)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton & Co, 1892)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Young J. Pentland, 1895)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton & Co, 1895)