Nature sketches in temperate America, a series of sketches and a popular account of insects, birds, and plants, treated from some aspects of their evolution and ecological relations - Hancock, Joseph Lane. (A. C. McClurg & Co, 1911)

Nature study - Manchester Institute of Arts; Sciences. ([Nature Study Press], 1901)

The nature-study review - American Nature Study Society. (Comstock Pub. Co, 1905)

New genera and species of Melanopli found within the United States (Orthoptera; Acrididae) - Hebard, Morgan, 1887 -1946 (American Entomological Society, 1918)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1916)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1917)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1918)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1926)

News letter - United States. Bureau of Entomology; Plant Quarantine. (Bureau of Entomology and Plant Quarantine, 1934)

News letter - United States. Bureau of Entomology; Plant Quarantine. (Bureau of Entomology and Plant Quarantine, 1935)

Newsletter - Wisconsin Entomological Society. (Wisconsin Entomological Society, 1980)

Newsletter: clovers and special purpose legumes research - United States. Agricultural Research Service. Forage; Range Research Branch. (The Branch, 1967)

Nomenclator zoologicus. An alphabetical list of all generic names that have been employed by naturalists for recent and fossil animals from the earliest times to the close of the year 1879 ... - Scudder, Samuel Hubbard, 1837 -1911 (Govt. Print. Off, 1882)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1938)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1941)

The North Dakota Grasshopper Integrated Pest Management Demonstration Project - United States. Animal; Plant Health Inspection Service. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, 2000)

Notes on orthopteran gregarinidae with especial reference to two unnamed species - Kamm, Minnie Watson, 1886 -1954 (1913)

Notes on the food of birds - Cockerell, Theodore D. A. (Theodore Dru Alison), 1866 -1948 (New Mexico College of Agriculture and Mechanic Arts, 1901)

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

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1922)

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