Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2010)

Occasional papers of the Museum of Natural History, the University of Kansas - University of Kansas. Museum of Natural History. (The University, 1989)

Occasional papers of the San Diego Society of Natural History - San Diego Society of Natural History. (San Diego Society of Natural History, 1961)

The ocean - Gosse, Philip Henry, 1810 -1888 (Parry & McMillan, 1856)

The ocean - Gosse, Philip Henry, 1810 -1888 (Printed for the Society for Promoting Christian Knowledge, 1854)

The ocean - Gosse, Philip Henry, 1810 -1888 (Printed for the Society for Promoting Christian Knowledge, 1845)

The ocean - Gosse, Philip Henry, 1810 -1888 (Society for Promoting Christian Knowledge, 1854)

The ocean - Gosse, Philip Henry, 1810 -1888 (Society for Promoting Christian Knowledge, 1860)

The ocean - Gosse, Philip Henry, 1810 -1888 (Society for Promoting Christian Knowledge, 1849)

The ocean - Gosse, Philip Henry, 1810 -1888 (Society for promoting Christian knowledge, 1845)

Oecology of plants : an introduction to the study of plant-communities - Vahl, M. (Martin), 1749 -1804 (Clarendon Press, 1909)

Oecology of plants : an introduction to the study of plant-communities - Warming, Eugenius, 1841 -1924 (Clarendon Press, 1909)

Oecology of plants; an introduction to the study of plant-communities - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1909)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1864)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1870)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1873)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1875)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1877)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1880)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1901)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1906)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1910)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1913)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1914)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1915)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1916)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1920)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1851)

Official guide to the Botanic Gardens, Dominica : illustrated : with an index of the principal plants - Botanic Gardens (Dominica) (The Garden, 1922)

Official guide to the museums of economic botany. No. 1, Dicotyledons - Royal Botanic Gardens, Kew. (Printed for H.M. Stationery Off., by Darling, 1907)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1852)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1853)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1854)

Oikos= boletín del Centro de Ecología [UNAM] (Instituto de Ecología, UNAM, 2018)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1934)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1946)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1973)

Les oiseaux de l'Europe et leurs oeufs, décrits et dessinés dáprès nature - Dubois, Alphonse, 1839 -1921. (Chez C. Muquardt, 1868)

Les oiseaux de l'Europe et leurs oeufs, décrits et dessinés d'après nature - Dubois, Alphonse, 1839 -1921. (chez C. Muquardt, 1861)

Old and new ornamental trees, shrubs & flowers for landscape planting : wholesale price list : spring 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Teas Nursery Co, 1926)

Omphalos: an attempt to untie the geological knot ... - Gosse, Philip Henry, 1810 -1888 (J. Van Voorst, 1857)

On new and rare crustacea from Scottish waters - Scott, Thomas, 1840 -1929 (Taylor and Francis, 1909)

On some Indian forest grasses and their oecology - Hole, R. S. (Superintendent Government Printing, India, 1911)

On the flora of Australia : its origin, affinities, and distribution : being an introductory essay to the flora of Tasmania - Hooker, Joseph Dalton, 1817 -1911 (Lovell Reeve, 1859)

One-hundred and fifth annual catalogue of high class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1906)

One-hundred and ninth annual catalogue of high class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1910)

One hundred and second annual catalogue of high-class seeds, 1903 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1903)

Onomatologia botanica completa : oder Vollständiges botanisches Wörterbuch ; worinn nicht nur alle Kunstwörter übersetzt und erklärt, die bekannte [sic] Pflanzen nach der Lehrart des Ritters von Linne beschrieben, ihre verschiedene Namen nach den berühmtesten Schriftstellern angeführt, und eine kleine Lebensgeschichte der vornehmsten Kräuterkundigen beygefügt, sondern auch die Heilskräfte und der Nutzen, den die Arzney-Wissenschaft, Landwirtschaft, Färberey, Vieharzney- und Scheidekunst aus denselben ziehen, aus den besten Schriften dieser Art und aus eigener Erfahrung erläutert werden von einer Gesellschaft erfahrner Pflanzenkundiger - Gmelin, Johann Friedrich, 1748 -1804 ([publisher not identified], 1778)

Opera e periodicis collata - Vries, Hugo de, 1848 -1935 (A. Oosthoek, 1918)

Orchard & garden book, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1944)

Orchard & garden book, 1945 - Roeding, George Christian, 1868 -1928 (California Nursery Company, 1945)

Orchard & garden book, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1946)

Orchard & garden book, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1947)

Orchard and garden book : 1865-1950, 85th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Seed Company, 1950)

Orchard and garden book, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1936)

The Orchid review (Orchid Review ltd.], 1906)

The Orchid review (Orchid Review ltd.], 1917)

The Orchid review (Orchid Review ltd.], 1918)

The Orchid review (Orchid Review ltd.], 1923)

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G, 1981)

Organic materia medica : including the standard remedies of the leading pharmacopoeas as well as those articles of the newer materia medica ... and of the preparations made therefrom by Parke, Davis & Co. ... - Parke, Davis & Company ([s.n.], 1888)

Organographie vegetale ; ou, Description raisonnee des organes des plantes, pour servir de suite et de developpement a la theorie elementaire de la botanique, et d'introduction a la physiologie vegetale et a la description des familles, avec 60 planches en taille-douce - Candolle, Augustin Pyramus de, 1778 -1841 (Chez Deterville, libraire, rue Hautefeuille, no.8, 1827)

Organography of plants, especially of the Archegoniata and Spermaphyta - Balfour, Isaac Bayley, 1853 -1922 (Clarendon press, 1900)

Organography of plants, especially of the archegoniatae and spermaphyta - Goebel, K. (Karl), 1855 -1932 (Clar. Press, 1900)

Florist's journal (How and Parsons, 1840)

Florist's journal (How and Parsons, 1842)

Florist's journal (How and Parsons, 1844)

Florist's journal (How and Parsons, 1846)

Florist's journal (How and Parsons, 1847)

Ornamental and fruit trees and shrubs. a guide to Southern horticulture .... 1918 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Palm Nurseries, 1918)

Ornamental and fruit trees : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Co, 1921)

Ornamental gardening for Americans. A treatise on beautifying homes, rural districts, towns, and cemeteries - Long, Elias A., 1849 -1917 (Orange Judd, 1885)

Ornamental gardening in Florida - Simpson, Charles Torrey, 1846 -1932 (The author, 1916)

Ornamental plants for low-elevation desert areas of southern California - Mathias, Mildred Esther, 1906 - (California Agricultural Experiment Station, 1955)

Ornamental trees and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1908)

The ornamental trees of Hawaii - Rock, Joseph F. (Joseph Francis), 1884 -1962 (1917)

Ornamental trees, vines & shrubs : temporary price list, January 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Del Amo Nurseries, 1940)

Ornamental trees, vines and shrubs : descriptive price list, February 15, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Del Amo Nurseries, 1938)

Ornamentals for low-elevation desert areas of southern California - Mathias, Mildred Esther, 1906 - (Division of Agricultural Sciences, University of California, 1961)

Ornithologia Svecica - Nilsson, Sven, 1787 -1883 (Apud J.H. Schubothium, 1817)

Ornithologia Svecica - Nilsson, Sven, 1787 -1883 (Apud J.H. Schubothium, 1821)