Nuevos elementos de historia natural : conteniendo la zoologia, la botanica, la mineralogia y la geologia ... - Rodrigo, José. (Imprenta de Verges, 1837)

Nuovi annali delle scienze naturali (1851)

Nuovo Giornale d'Italia Spettante alla Scienza Naturali (1777)

The nursery-book : a complete guide to the multiplication and pollination of plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Rural Pub. Co, 1892)

Nursery stock adapted to the Great Plains region : 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kansas Landscape & Nursery Co, 1949)

Nutritional factors affecting mineral status and long term carry-over effects in ruminants - Rosero, Oswaldo R., 1942 - (1983)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 1970)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 1988)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 1998)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2023)

Obras completas y correspondencia científica - Ameghino, Florentino, 1853 -1911 (Taller de Impresiones Oficiales, 1913)

Observations on the botany of Illinois : more especially in reference to the autumnal flora of the prairies : in a letter to Daniel Drake - Short, Charles Wilkins, 1794 -1863 ([s.n.], 1845)

Observations on the botany of Illinois, more especially in reference to the autumnal flora of the prairies : in a letter to Daniel Drake - Short, Charles Wilkins, 1794 -1863 (1845)

Observations on the natural family of plants called Compositae - Brown, Robert, 1773 -1858 (Printed by Richard and Arthur Taylor, 1817)

Observations on the structure of fruits and seeds - Lindley, John, 1799 -1865 (John Harding, 1819)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1991)

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

Ocean data resources : [report] prepared at the request of Warren G. Magnuson, for the use of the Committee on Commerce, pursuant to S. Res. 222, National Ocean Policy Study - United States. Congress. Senate. Committee on Commerce. (U.S. Govt. Print. Off, 1975)

Odorographia : a natural history of raw materials and drugs used in the perfume industry : intended to serve growers, manufacturers and consumers - Sawer, John Charles (Gurney & Jackson, 1892)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1870)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1871)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1875)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1876)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1877)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1878)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1908)

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

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1852)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1853)

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

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)

Die offizinellen Pflanzen und Drogen :eine systematische Übersicht über die in sämtlichen Staaten Europas sowie in Japan und den Vereinigten Staaten von Amerika offizinellen Pflanzen und Drogen mit kurzen erläuternden Bemerkungen - Mitlacher, Wilhelm, 1872 -1913 (C. Fromme, 1912)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1862)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1864)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1866)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1880)

Oikos= boletín del Centro de Ecología [UNAM] (Instituto de Ecología, UNAM, 2013)

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

Oilbirds of Venezuela : ecology and conservation - Roca, Roberto Luis (Nuttall Ornithological Club, 1994)

Om vegetationen paa de Dansk-Vestindiske er - Børgesen, Frederik, 1866 -1956 (E. Bojesen, 1898)

On Pourtalesia; a genus of Echinoidea - Lovén, Sven Ludvig, 1809 -1895 (P.A. Norstedt, 1883)

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)

On the role of insects, arachnids and myriapods, as carriers in the spread of bacterial and parasitic diseases of man and animals. A critical and historical study - Austen, E. E. (Ernest Edward), 1867 -1938 (J. & A. Churchill, 1900)

Opuscules de botanique - Clos, Dominique, 1821 -1908 (1859)

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 farm (Calkins Newspaper Syndicate, 1898)

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

Organic remains of a former world : an examination of the mineralized remains of the vegetables and animals of the Antediluvian world; generally termed extraneous fossils - Parkinson, James, 1755 -1824 (M.A. Nattali, 1833)

Organic remains of a former world. An examination of the mineralized remains of the vegetables and animals of the antediluvian world; generally termed extraneous fossils - Parkinson, James, 1755 -1824 (Sherwood, Neely and Jones, etc, 1811)

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)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (D. Appleton, 1886)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (Appleton, 1892)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (D. Appleton and Co, 1908)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (D. Appleton and company, 1902)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (K. Paul, Trench, 1884)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (D. Appleton, 1885)

Origin of cultivated plants - Candolle, Alphonse de, 1806 -1893 (Paul, Trench, 1886)

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

Florist's journal (How and Parsons, 1844)

Florist's journal (How and Parsons, 1846)

Florist's journal (How and Parsons, 1847)

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)

Ornithological gazetteer of Argentina - Paynter, Raymond A. Jr. (Obtainable from Bird Dept., Museum of Comparative Zoology, Harvard University, 1995)

Ornithological gazetteer of Brazil - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Obtainable from Bird Dept., Museum of Comparative Zoology, Harvard University, 1991)

Ornithological gazetteer of Colombia - Paynter, Raymond A. Jr. (Bird Dept., Museum of Comparative Zoology, Harvard University, 1997)

Ornithological gazetteer of Venezuela - Paynter, Raymond A. Jr. (Bird Dept., Museum of Comparative Zoology, Harvard University, 1982)

Österreichs Holzpflanzen = : Plantae lignosae Imperii Austriaci : eine auf genaue Berücksichtigung der merkmale der Laubblätter gegründete floristische Bearbeitung aller im Österreichischen Kaiserstaate wild wachsenden oder häufig cultivirten Bäume, Sträucher und Halbsträucher - Pokorny, Alois, 1826 -1886 (K.K. Hof- und Staatsdruckerei, 1864)

Our farm crops. Being a popular scientific description of the cultivation, chemistry, diseases, remedies, &c., of the various crops cultivated in Great Britain and Ireland - Wilson, John, 1812 -1888 (Blackie and son, 1859)

Outlines of an attempt to establish a knowledge of extraneous fossils on scientific principles - Martin, William, 1767 -1810 (Printed by J. Wilson, 1809)

Outlines of lectures on materia medica and botany :delivered in Jefferson Medical College, Philadelphia - Barton, William P. C. (William Paul Crillon), 1786 -1856 (Joseph G. Auner, 1827)

Oversigt over det Kongelige Danske videnskabernes selskabs forhandlinger = Bulletin de l'Académie royale des sciences et des lettres de Danemark - Kongelige Danske videnskabernes selskab. (A.F. Høst, 1878)

Overwash processes and foredune ecology, Nauset Spit, Massachusetts - Massachusetts Audubon Society. (U.S. Army Engineer Waterways Experiment Station, 1984)

Pacific science - University of Hawaii. (University Press of Hawaii, 1953)

Pacific science - University of Hawaii. (University Press of Hawaii, 1958)

Pacific science - University of Hawaii. (University Press of Hawaii, 1967)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1901)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1909)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1910)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1895)

Palaeontographica Supplement (Theodor Fischer, 1885)

Palais de San Donato : Catalogue de plantes rares garnissant les serres, dont la vente aux enchères publiques aura lieu à Florence, au Palais de San Donato, du vendredi 23 avril au mardi 4 mai 1880 à une heure précise - Palais De San Donato, Florence (1879)

Paleobotany and biogeography : a festschrift for Alan Graham in his 80th year - Raven, Peter H (Missouri Botanical Garden, 2014)