Den Norske Nordhavs-expedition, 1876-1878 - Sars, G. O. (Georg Ossian), 1837 -1927 (Grøndahl & søns bogtrykkeri, 1885)

Den Norske Nordhavs-expedition, 1876-1878 - Sars, G. O. (Georg Ossian), 1837 -1927 (Grøndahl & søns bogtrykkeri, 1886)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1960)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1962)

North American geology and paæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([Western Methodist Book Concern], 1889)

North American geology and palaeontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([s.n.], 1889)

North American geology and palæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([Western Methodist book concern], 1889)

North American geology and palæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 (Western Methodist Book Concern, 1889)

North American index fossils, invertebrates - Grabau, Amadeus W. (Amadeus William), 1870 -1946 (A.G. Seiler, 1909)

The Norwegian North polar expedition, 1893-1896; scientific results - Nansen, Fridtjof, 1861 -1930 (Longmans, Green and co, 1900)

Notes, chiefly botanical, of a visit to the Island of Coll - Scott, Thomas, 1840 -1929 (Natural History Society of Glasgow, 1880)

Notes from the Leyden Museum - Rijksmuseum van Natuurlijke Historie te Leiden. (E.J. Brill, 1913)

Notes on methods for the narcotization, killing, fixation, and preservation of marine organisms - Marine Biological Laboratory (Woods Hole, Mass.). Systematics-Ecology Program. (Marine Biological Laboratory, Systematics-Ecology Program, 1963)

Notes on orchid culture - Hooker, Joseph Dalton, 1817 -1911 (1861)

Notes on the Crustacea of the Channel Islands - Norman, Alfred Merle, 1831 -1918 (s.n, 1907)

Nouvelles archives du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Masson et Cie, 1902)

Nouvelles archives du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Masson et Cie, 1904)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1861)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1874)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1901)

Nova contribuição para a fauna carcinologica da ilha de S. Thomé - Osorio, Balthazar. (Typ. da Academia Real das Sciencias, 1892)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2010)

Novorum actorum Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum - Academia Caesarea Leopoldino-Carolina Naturae Curiosorum. (Friedrich Frommann, 1845)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1870)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1922)

Observations on certain parts of the animal economy : inclusive of several papers from the Philosophical transactions, etc - Owen, Richard, 1804 -1892 (Haswell, Barrington, and Haswell, 1840)

Observations on certain parts of the animal oeconomy : inclusive of several papers from the Philosophical transactions, etc. ; Treatise on the natural history and diseases of the human teeth : explaining their structure, use, formation, growth, and diseases : in two parts - Hunter, John, 1728 -1793 (Haswell, Barrington, and Haswell, 1839)

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

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, 1893)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1967)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1968)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1969)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1985)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1986)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1987)

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)

Occasional papers on mollusks - Harvard University. Museum of Comparative Zoology. Department of Mollusks. (Dept. of Mollusks, 1992)

The ocean island (Inagua) - Klingel, Gilbert C. (Dodd, Mead, 1940)

Ocean life - Sommerville, James M. (Barnard & Jones, 1859)

The ocean world: being a description of the sea and its living inhabitants - Figuier, Louis, 1819 -1894 (Cassell, Petter and Galpin, 1869)

The ocean world: being a description of the sea and some of its inhabitants - Figuier, Louis, 1819 -1894 (Cassell, 1872)

The ocean world: being a description of the sea and some of its inhabitants - Figuier, Louis, 1819 -1894 (D. Appleton and Co, 1872)

Oceanograhic survey results off Point Arguello, California, January and November-December, 1964 - United States. Naval Oceanographic Office. (Naval Oceanographic Office, 1968)

Oceanography in the Channel Islands area off southern California, September and October 1965 - Iredale, Harry. (Naval Oceanographic Office, 1968)

Oceanography; invited lectures presented at the International Oceanographic Congress held in New York, 31 August-12 September 1959 - Sears, Mary (1961)

Oceanology : biology of the ocean. Volume 2, Biological productivity of the ocean - United States. National Oceanic; Atmospheric Administration. (National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Center, 1985)