Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1913)

Nature lovers library (University Society Inc, 1923)

The Nature of Illinois - Nature of Illinois Foundation. (Society for the Illinois Scientific Surveys, 1986)

Naturen : illustreret maanedsskrift for populaer naturvidenskab - Bergens Museum. (E. B. Giertsen [etc.], 1881)

Die Naturgeschichte des Thierreichs - Giebel, C. (Christoph), 1820 -1881 (Wigand, 1859)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1888)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1891)

Naturwissenschaftlicher Beobachter (Zoologische Gesellschaft [etc.], 1860)

Naturwissenschaftlicher Beobachter (Zoologische Gesellschaft [etc.], 1898)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 1965)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 1966)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 1973)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 1983)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2008)

The Nebraska bird review - Nebraska Ornithologists' Union. (Nebraska Ornithologists' Union, 2011)

Nesting biology of mallards in west-central Illinois - Illinois. Natural History Survey Division (Illinois Natural History Survey, 2009)

Die Neuere Schopfungsgeschichte nach dem gegenwartigen Stande der Naturwissenschaften, &c - Dodel-Port, Arnold. (1875)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1873)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1882)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1890)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1830)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1904)

The new book of the dog : a comprehensive natural history of British dogs and their foreign relatives, with chapters on law, breeding, kennel management, and veterinary treatment - Leighton, Robert, 1859 -1934 (Cassell, 1911)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2010)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2015)

Ninth Great Plains Wildlife Damage Control Workshop proceedings : April 17-20, 1989, Fort Collins, Colorado - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1889)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1891)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1904)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1908)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1926)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1931)

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 fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1968)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1969)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1978)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1981)

North American Quaternary Canis - Nowak, Ronald M. (Museum of Natural History, University of Kansas, 1979)

North central Montana black-footed ferret reintroduction : environmental assessment - U.S. Fish; Wildlife Service (The Dept, 1992)

North Park habitat management plan : CO-01 WHA-2 - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, 1977)

North Platte River area designated (noxious) weed treatment program : environmental assessment record - United States. Bureau of Land Management. (Wyoming Department of Agriculture, 1978)

Northwest Montana Libby/Hungry Horse Dams wildlife mitigation : Columbian sharp-tailed grouse : final report - Montana. Department of Fish, Wildlife,; Parks (U.S. Dept. of Energy, Bonneville Power Administration, Division of Fish and Wildlife, 1992)

Notes on some mammals from Jalisco, Mexico - Genoways, Hugh H. (Museum, Texas Tech University, 1973)

Notes on some mammals of north-central Texas - Jones, Clyde, 1935 - (Texas Tech University Press, 1987)

Notes on the mammals of the Lake Maxinkuckee region - Evermann, Barton Warren, 1853 -1932 (Williams & Wilkins company, 1911)

Notes on the natural history of portions of Montana and Dakota; being the substance of a report to the Secretary of War on the collections made by the North Pacific Railroad Expedition of 1873, Gen. D.S. Stanley, commander - Allen, J. A. (Joel Asaph), 1838 -1921 (1874)

Notes on the natural history of the expedition conducted by Brig. General George A. Crook, U.S.A - Mearns, Edgar Alexander, 1856 -1916 (1884)

Notes sur la médecine et la botanique des anciens Mexicains - Gerste, A. (Impr. Polyglotte vaticane, 1909)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1895)

Novi commentarii Academiae Scientiarum Imperialis Petropolitanae - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Typis Academiae Scientarum, 1775)

Occasional papers - Texas Tech University. Museum, (The Museum, 1985)

Occasional papers - Texas Tech University. Museum, (The Museum, 1986)

Occasional papers - Texas Tech University. Museum, (The Museum, 1987)

Occasional papers - Texas Tech University. Museum, (The Museum, 1988)

Occasional papers - Texas Tech University. Museum, (The Museum, 1989)