A naturalist in the Bahamas: John I. Northrop, October 12 1861 - June 25, 1891: a memorial volume - Osborn, Henry Fairfield, 1857 -1935 (Columbia University Press, 1910)

Naturalist's guide to the Americas - Ecological Society of America. Committee on the Preservation of Natural Conditions. (Williams & Wilkins, 1926)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1869)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1875)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1877)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1878)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1918)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1878)

Nature and science on the Pacific coast : a guide-book for scientific travelers in the West - American Association for the Advancement of Science. Pacific Coast Committee. (P. Elder, 1915)

Nature et faune : revue internationale pour la conservation de la nature en Afrique = Wildlife and nature : international journal on nature conservation in Africa - Food; Agriculture Organization of the United Nations. Regional Office for Africa. (Bureau régional de la F.A.O. pour l'Afrique)

Nature notes : the Selborne Society's magazine - Selborne Society. (H. Sotheran, 1891)

The Nature-study review : devoted to all phases of nature-study in elementary schools - American Nature Study Society. ([M.A. Bigelow], 1906)

Naturen : illustreret maanedsskrift for populaer naturvidenskab - Bergens Museum. (E. B. Giertsen [etc.], 1885)

Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet - Engler, Adolf, 1844 -1930 (W. Engelmann, 1887)

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1892)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1909)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1902)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1904)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1903)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1911)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1970)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1975)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1980)

Nemouria; occasional papers of the Delaware Museum of Natural History - Delaware Museum of Natural History. (Delaware Museum of Natural History, 1983)

Neotropical migrant landbirds in the northern Rockies and Great Plains : a handbook for conservation and management - United States. Forest Service. Northern Region. (U.S. Dept. of Agriculture, Forest Sevice, Northern Region, 1992)

Nesting raptors in southwestern Alaska : status, distribution, and aspects of biology - United States. Bureau of Land Management. Alaska State Office. (U.S. Department of the Interior, Bureau of Land Management, Alaska State Office, 1983)

A net volume equation for Indiana - North Central Forest Experiment Station (Saint Paul, Minn.) (U.S. Dept. of Agriculture, 1982)

Nevada rangeland phenology - United States. Bureau of Land Management. (NRC, Inc, 1978)

Nevada rangeland phenology - United States. Bureau of Land Management. (NRC, Inc, 1979)

New England trees in winter - Blakeslee, Albert Francis, 1874 -1954 (Storrs Agricultural Experiment Station, 1911)

New England wild flowers and their seasons - Bailey, William Whitman, 1843 -1914 (Preston and Rounds, 1897)

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

New genera, new species, new synonyms, and new combinations in North America and Caribbean Phylinae (Heteroptera, Miridae) - Schuh, Randall T. (American Museum of Natural History, 2004)

New herbicides for calamagrostis control : final report 1996/97 - Alberta. Alberta Environmental Protection. (Alberta Environmental Protection, 1997)

New manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada, rearr. and extensively rev. by Benjamin Lincoln Robinson and Merritt Lyndon Fernald - Robinson, Benjamin Lincoln, 1864 -1935 (American Book Co, 1908)

New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American Book Company, 1909)

New manual of botany of the central Rocky Mountains, vascular plants - Coulter, John Merle, 1851 -1928 (American Book Co, 1909)

New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American book company, 1909)

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, 2004)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2012)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2020)

New Mexico's forest resources - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1993)

New or unusual plant injuries and diseases found in Connecticut, 1916-1919 - Clinton, G. P. (George Perkins), 1867 -1937 (Connecticut Agricultural Experiment Station, 1920)

The New phytologist - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Academic Press, 1909)

The New phytologist - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Academic Press, 1914)

New tracks in North America :a journal of travel and adventure whilst engaged in the survey for a southern railroad to the Pacific ocean during 1867/8 - Bell, William Abraham (Chapman and Hall, 1869)

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New York State Museum bulletin - New York State Museum. (University of the State of New York, 1921)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1920)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1925)

New York State : state floras - Gray, Asa, 1810 -1888 (various publishers, 1814)

The New Zealand family herb doctor : a book on the botanic eclectic system of medicine, containing the latest discoveries in medicine and surgery, for the cure of disease : also, a description of the herbs, roots, barks, seeds, extracts, essential oils, & c : with 100 (six-coloured) plates of the most important medicinal plants growing in New Zealand, Australia, and elsewhere, together with numerous carefully selected valuable remedies, recipes, &c., with a successful treatment for horses and cattle, dogs, & c - Neil, James F., M.D., U.S.A. (Mills, Dick, 1891)

Newsletter - Colorado Native Plant Society. (The Society, 1977)

Newsletter - Wisconsin Entomological Society. (Wisconsin Entomological Society, 1982)

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)

Nitrogen fixation in Shepherdia canadensis (L.) nutt - University of Alberta. (University of Alberta, 1981)

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Nomenclator botanicus, seu, Synonymia plantarum universalis :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et a recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (typis et sumptibus J.G. Cottae, 1841)

North American Cerambycid larvæ : a classification and the biology of North American Cerambycid larvæ - Canada. Department of Agriculture. (Published by direction of the ... Minister of Agriculture, 1923)

North American cerambycid larvae : a classification and the biology of North American cerambycid larvae - Craighead, Frank C. (Frank Cooper), 1890 -1982 (Dept. of Agriculuture, 1923)

The North American cup-fungi (inoperculates) - Seaver, Fred Jay, 1877 -1970 (1951)

The North American entomologist - Grote, Augustus Radcliffe, 1841 -1903 (Reinecke & Zesch, 1879)

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, 1895)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1900)

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, 1909)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1910)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1918)

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, 1981)

North American flora - New York Botanical Garden (New York Botanical Garden, 1910)

North American flora - New York Botanical Garden (New York Botanical Garden, 1922)

North American flora - New York Botanical Garden (New York Botanical Garden, 1907)

North American flora - New York Botanical Garden (New York Botanical Garden, 1924)

North American flora - New York Botanical Garden (New York Botanical Garden, 1931)

North American forests and forestry; their relations to the national life of the American people - Bruncken, Ernest, 1865 -1933 (Putnam, 1900)

North American forests and forestry, their relations to the national life of the American people - Bruncken, Ernest, 1865 -1933 (G.P. Putnam, 1900)

North American forests and forestry their relations to the national life of the American people - Bruncken, Ernest, 1865 -1933 (G.P. Putnam's Sons, 1900)

The North American Pyrenomycetes. A contribution to mycologic botany - Everhart, B. M. (Benjamin Matlack), 1818 -1904 (Ellis & Everhart, 1892)