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)

Die Naturwissenschaften - Gesellschaft Deutscher Naturforscher und Ärzte. (Springer-Verlag, 1913)

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1891)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1893)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2003)

The nearctic species of Nebria Latreille (Coleoptera: Carabidae: Nebriini) : classification, phylogeny, zoogeography, and natural history - Kavanaugh, David H (University of Alberta, Dept of Entomology, 1978)

Nederlandsch kruidkundig archief - Koninklijke Nederlandse Botanische Vereniging. (S. en J. Luchtmans, 1846)

Nemouria; occasional papers of the Delaware Museum of Natural History - Delaware Museum of Natural History. (Delaware Museum of Natural History, 1975)

Nesting biology and immature stages of a new species in the bee genus Hesperapis (Hymenoptera, Apoidea, Melittidae, Dasypodinae) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 1987)

Nesting biology and immature stages of the bees Centris caesalpiniae, C. pallida, and the cleptoparasite Ericrocis lata (Hymenoptera, Apoidea, Anthophoridae) - Buchmann, Stephen L. (American Museum of Natural History, 1990)

Nesting biology and immatures of the oligolectic bee Trachusa larreae (Apoidea, Megachilidae, Anthidiini) - Hall, H. Glenn. (American Museum of Natural History, 2012)

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, 1995)

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

A new night lizard (genus Xantusia) from Durango, Mexico - Webb, Robert G. (American Museum of Natural History, 1965)

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)

New York Shell Club notes - New York Shell Club. (The Club, 1955)

New York Shell Club notes - New York Shell Club. (The Club, 1972)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1924)

Nihon suisan doshokubutsu zushu = Illustrations of Japanese aquatic plants and animals - Ito, Kumataro (Fisheries Society of Japan (Dai-Nihon suisan-kwai), 1935)

Nomenclator botanicus; enumerans ordine alphabetico nomina atque synonyma tum generica tum specifica et a Linnaeo et recentrioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (sumtibus I.G. Cottae, 1821)

Nomenclator botanicus :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (Sumptibus J.G. Cottae, 1821)

Nomenclator botanicus hortensis : oder, alphabetische und synonymische aufzählung der in den gärten Europa's cultivirten gewächse, nebst angabe ihres autors, ihres vaterlandes, ihrer dauer und cultur - Heynhold, Gustav, 1800 -approximately 1860 (Arnoldischen Buchhandlung, 1840)

Nomenclator botanicus. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designatium enumeratio alphabetica. Adjectis auctoribus, temporibus, locis systematicis, apud varios, notis literariis atque etymologicis et synonymis - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischeri, 1873)

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)

Nomenclator zoologicus : continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita, adjectis auctoribus, libris, in quibus reperiuntur, anno editionis, etymologia et familiis, ad quas pertinent, in singulis classibus - Agassiz, Louis, 1807 -1873 (Jent et Gassmann, 1842)

Nomenclatoris zoologici index universalis : continens nomina systematica classium, ordinum, familiarum et generum animalium omnium ... homonymiis plantarum - Agassiz, Louis, 1807 -1873 (Sumptibus Jent et Gassman, 1848)

Nomenclatura geográfica de México : etimologías de los nombres de lugar correspondientes a los principales idiomas que se hablan en la república - Peñafiel, Antonio, 1831 -1922 (Oficina Tipográfica de la Secretaria de Fomento, 1897)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1893)

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 flora - New York Botanical Garden (New York Botanical Garden, 1928)

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

Notes of a military reconnoissance, from Fort Leavenworth, in Missouri, to San Diego, in California, including part of the Arkansas, Del Norte, and Gila rivers [House Report: Ex. doc. no.: 41] - Emory, William H. 1811 -1887 (Wendell and Van Benthuysen, 1848)

Notes of a military reconnoissance :from Fort Leavenworth, in Missouri, to San Diego, in California, including parts of the Arkansas, Del Norte, and Gila rivers [Senate Report: Ex. doc. no.: 7] - Emory, William H. 1811 -1887 (Wendell and Van Benthuysen, printer, 1848)

Notes to accompany a vegetation map of Northwest Mexico - University of New Mexico. (University of New Mexico, 1936)

Noticia de la California, y de su conquista temporal, y espiritual hasta el tiempo presente - Venegas, Miguel, 1680 -1764 (En la imprenta de la viuda de Manuel Fernandez, y del Supremo consejo de la Inquisicion, 1757)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1902)

Nouveau dictionnaire d'histoire naturelle appliquée aux arts : principalement à l'agriculture et à l'économie rurale et domestique - Imprimerie de Crapelet (Paris, France) (Chez Deterville, 1803)

Nouvelles annales du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Roret, 1834)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2002)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2005)

A numerical model to simulate sediment transport in the vicinity of coastal structures - Coastal Engineering Research Center (U.S.) (The Center, 1983)

Nuovi annali delle scienze naturali (1848)

Nutrition and foraging ecology of the desert tortoise : FY 1990 annual report - DeFalco, Lesley A. (U.S. Fish and Wildlife Service, National Ecology Research Center, 1991)

Nyctaginaceae of Nevada - Reed, Clyde Franklin, 1918 - (Plant Industry Station, 1960)

Obras - Acosta, José de, 1540 -1600 (Ediciones Atlas, 1954)

Obras del Excmo. Señor D. Francisco de Arango y Parreño - Arango y Parreño, Francisco, 1765 -1837 (Impr. de Howson y Heinen, 1888)

Observations on bats of Córdoba and La Pampa provinces, Argentina - Tiranti Paz, Sergio I. (Museum of Texas Tech University, 1998)

Occasional papers - San Diego Society of Natural History. (San Diego Society of Natural History, 1937)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1970)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1973)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1979)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1984)

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

Occasional papers of the Museum of Natural History, the University of Kansas - University of Kansas. Museum of Natural History. (The University, 1990)

Oceanic birds of South America : a study of species of the related coasts and seas, including the American quadrant of Antarctica, based upon the Brewster-Sanford collection in the American Museum of Natural History - Jaques, Francis Lee, 1887 -1969 (Macmillan Co, 1936)

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)

Official guide to the museums of economic botany. No. 1, Dicotyledons - Royal Botanic Gardens, Kew. (Printed for H.M. Stationery Off., by Darling, 1907)

Official proceedings - International dry-farming congress. (Denver chamber of commerce; [etc.,etc, 1908)

On chorisis as an explanation of certain vegetable structures - Hincks, William, 1794 -1871 (s.n, 1865)

Our Araby: Palm Springs and the Garden of the sun - Chase, J. Smeaton (Joseph Smeaton), 1864 -1923 (Printed for J. S. Chase by Star-news publishing company, 1920)

Our Araby: Palm Springs and the the Garden of the sun - Chase, J. Smeaton (Joseph Smeaton), 1864 -1923 (Printed for J. S. Chase by Star-news publishing company, 1920)

An outline of plant geography (The Macmillan company, 1926)

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

Paleontological investigations at Mineral Hill Cave - Broughton, Jack M. (U.S. Department of the Interior, Bureau of Land Management, Elko Field Office, 2004)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1947)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1948)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1956)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1958)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1963)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1968)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1974)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1975)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1976)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1979)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1982)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1983)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1984)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1985)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1990)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1992)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1994)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1998)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 2001)

Papers concerning the palaeontology of California, Nevada and Oregon - Munz, Philip A. (Philip Alexander), 1892 -1974 (Carnegie Institution of Washington, 1935)

Papers on Coccidae or scale insects - United States. Bureau of Entomology. (Government Printing Office, 1908)

Papers on mammalogy - Field Museum of Natural History. (Field Museum of Natural History, 1941)

Patterson's numbered check-list of North American plants north of Mexico - Patterson, Harry N. (Harry Norton), 1853 -1919 (Patterson, 1892)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

Personal narrative of explorations and incidents in Texas, New Mexico, California, Sonora, and Chihuahua, connected with the United States and Mexican boundary commission, during the years 1850, '51, '52, and '53 - Bartlett, John Russell, 1805 -1886 (D. Appleton & company, 1854)

Personal narrative of explorations and incidents in Texas, New Mexico, California, Sonora, and Chihuahua : connected with the United States and Mexican Boundary Commission, during the years 1850, '51, '52, and '53 - Bartlett, John Russell, 1805 -1886 (D. Appleton & Company, 1854)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1912)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1879)

The Philosophical magazine : comprehending the various branches of science, the liberal and fine arts, geology, agriculture, manufactures and commerce (Richard Taylor and Co, 1806)

Philosophical notes on botanical subjects - Bonavia, E. (Emanuel), 1829 -1908 (Eyre and Spottiswoode, 1892)