Nursery catalog. fruit, shade and ornamental trees and shrubs. Fall 1918 spring 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Company, 1918)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1857)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1861)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1868)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1869)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1873)

Observations on the geology, mineralogy, zoology and botany of the Labrador coast, Hudson's Strait and Bay - Geological; Natural History Survey of Canada. (Dawson, 1884)

Observations sur la géologie, la minéralogie, la zoologie et la botanique de la côte du Labrador, du détroit et de la Baie d'Hudson - Bell, Robert, 1841 -1917 (s.n, 1884)

Occasional papers - Boston Society of Natural History. (1904)

Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History - Bernice Pauahi Bishop Museum. (Bishop Museum Press, 1912)

Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History - Bernice Pauahi Bishop Museum. (Bishop Museum Press, 1914)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1901)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1905)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1900)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2009)

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

Odontography : or a treatise on the comparative anatomy of the teeth, their physiological relations, mode of development and microscopic structure, in the vertebrate animals - Owen, Richard, 1804 -1892 (Hippolyte Bailliere, 1840)

Odontography; or, A treatise on the comparative anatomy of the teeth; their physiological relations, mode of development, and microscopic structure, in the vertebrate animals - Owen, Richard, 1804 -1892 (H. Baillière, 1840)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1859)

L'œuf humain : implantation et gestation, trophoderme et placenta - Royal College of Physicians of London. (Georg & cie, 1909)

[Œuvres] - Thuret, Gustave, 1817 -1875 ([publisher not identified], 1840)

Oeuvres complètes de Christiaan Huygens. Publiées par la Société hollandaise des sciences - Huygens, Christiaan, 1629 -1695 (M. Nijhoff, 1888)

Oeuvres complètes. Publiées sous la direction de J.-A. Barral - Arago, F. (François), 1786 -1853 (Gide et J. Baudry, 1854)

Oeuvres du comte de Lacépède : comprenant l'histoire naturelle des quadrupèdes ovipares, des serpens, des poissons et des cétacés : accompagnées de 150 planches gravées sur acier, représentant au moins 500 animaux - La Cépède, M. le comte de (Bernard Germain Etienne de La Ville sur Illon), 1756 -1825 (P. Duménil, 1836)

Oeuvres du comte de Lacépède : comprenant l'histoire naturelle des quadrupèdes ovipares, des serpents, des poissons et des cétacés; accompanées du portrait de l'auteur et d'environ 400 figures, exécutés pour cette édition par les meilleurs artistes - Cuvier, Georges, baron, 1769 -1832 (Chez F.D. Pillot, 1830)

Œuvres historiques et littéraires de Léonard Baulacre recueillies et mises en ordre par Edouard Mallet... - Baulacre, Léonard, 1670 -1761 (Jullien frères, 1857)

Official catalogue - International Live Stock Exposition. (Pettibone, 1901)

Official catalogue of exhibitors. Universal exposition. St. Louis, U.S.A. 1904. : Division of exhibits. Department A. Education [to H. Agriculture; J. Horticulture to P. Physical Culture; R. Livestock.] (For the Committee on press and publicity by the official catalogue company inc, 1904)

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

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)

Öfversigt af Finska vetenskaps-societetens förhandlingar - Suomen Tiedeseura (s.n.], 1897)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1851)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1850)

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, 1852)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1859)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1863)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1867)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1873)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1938)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1939)

Old fashioned roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1939)

Oleomargarine and butterine. A plain presentation of the most gigantic swindle of modern times (T.L. McAlpine, 1886)

Om Limfjordens tidligere og nuværende marine fauna, med særligt hensyn til bløddyraunaen - Denmark. Ministeriet for kirke- og undervisningsvæsenet. (Gyldendal, 1884)

Om Sveriges hydrachnider - Neuman, Carl Julius, 1839 -1912 (Kongl. boktryckeriet, P.A. Norstedt & söner, 1880)

On a new genus of the Crustacea, and the species on which it is established. Read July 8, 1817 - Say, Thomas, 1787 -1834 (Academy of Natural Sciences of Philadelphia, 1817)

On the biology of our flat-fishes and on the decrease of our flat-fish fisheries, with some observations showing how to remedy the latter and promote the flat-fish fisheries in our seas east of the Skaw - Petersen, C. G. Joh. (Carl Georg Johannes), 1860 -1928 (Centraltrykkeriet, 1894)

On the classification and geographical distribution of Crustacea - Dana, James Dwight, 1813 -1895 (C. Sherman, 1853)

On the classification and geographical distribution of crustacea; from the report on crustacea of the United States exploring expedition, under Captain Charles Wilkes, U.S.N., during the years 1838-1842 - Dana, James Dwight, 1813 -1895 (Sherman, 1853)

On the classification of the Brachyura and on the homologies of the antennary joints in Decapod Crustacea - Stimpson, William, 1832 -1872 (S. Converse, 1863)

On the crustacea and echinodermata of the Pacific shores of North America - Stimpson, William, 1832 -1872 (Boston Society of Natural History, 1857)

On the distribution of pelagic invertebrate fauna of the Firth of Forth and its vicinity during the seven years from 1889 to 1895, both inclusive - Scott, Thomas, 1840 -1929 (Fishery Board, 1898)

On the natural history of the Gulf of St. Lawrence and the distribution of the Mollusca of Eastern Canada - Bell, Robert, 1841 -1917 (s.n.], 1859)

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, 1955)

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, 1956)

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, 1957)

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, 1958)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1978)

Opisthobranch newsletter - Long, Steven J. (S.J. Long, 1979)

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

Opuscules entomologiques - Mulsant, Martial Étienne, 1797 -1880 (L. Maison, 1853)

The Orchid world. A monthly illustrated journal entirely devoted to orchidology - Wilson, Gurney, 1878 - (Alabaster, Passmore & Sons, ltd., printers], 1915)

Ornamental trees, shrubs, and woody climbers - Macoun, W. T. (William Tyrrell), 1869 -1933 (Canada Dept. of Agriculture, 1927)

Ornithologie de la Savoie, ou, Histoire des oiseaux : qui vivent en Savoie a l'état sauvage soit constamment, soit passagèrement - Bailly, J.-B. (Jean-Baptiste) (J.-B. Clary, 1853)

Ornithologie européenne, ou, Catalogue descriptif, analytique et raisonné des oiseaux observés en Europe - Gerbe, Zéphirin, 1810 -1890 (J.B. Bailli, 1867)

Ornithologie européenne, ou Catalogue analytique et raisonné des oiseux observés en Europe - Degland, Côme Damien, 1787 -1856 (Roret; [etc., etc.], 1849)

Ostasiastische Dekapoden - Doflein, Franz, 1873 -1924 (Verlag der k. Akademie in Commission des G. Franz'schen Verlags (J. Roth), 1902)

Ostasiatische decapoden - Balss, Heinrich, 1886 -1957 (1914)

Ostéographie, ou, Description iconographique comparée du squelette et du système dentaire des Mammifères récents et fossiles : pour servir de base à la zoologie et à la géologie - Blainville, H.-M. Ducrotay de (Henri-Marie Ducrotay), 1777 -1850 (J.B. Baillière et fils, 1839)

Die österreichische Polarstation Jan Mayen, ausgerüstet durch Graf Hanns Wilczek, geleitet vom Emil Edlen von Wohlgemuth. Beobachtungs-Ergebnisse, hrsg. von der Kaiserlichen Akademie der Wissenschaften - International Polar Expedition 1882 -1883 (In Commission bei K. Gerold's Sohn, 1886)

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)