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

Naturwissenschaftliche Reise nach Mossambique, auf Befehl Seiner Majestät des Königs Friedrich Wilhelm IV, in den Jahren 1842 bis 1848 ausgeführt, von Wilhelm C. H. Peters. Zoologie - Peters, Wilhelm C. H. (Wilhelm C. Hartwig), 1815 -1883 (G. Reimer, 1862)

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1912)

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.], 1896)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1897)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1899)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1903)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1905)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1915)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1917)

Nederlandsch kruidkundig archief - Koninklijke Nederlandse Botanische Vereniging. (S. en J. Luchtmans, 1920)

Nest and immatures of the South American anthidiine bee Notanthidium (Allanthidium) chilense (Urban) (Apoidea, Megachilidae) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 2015)

Nest architecture, immature stages, and ethnoentomology of a new species of Trigonisca from northern Colombia (Hymenoptera, Apidae) - Engel, Michael S. (American Museum of Natural History, 2019)

Nesting and developmental biology of the cleptoparasitic bee Stelis ater (Anthidiini) and its host, Osmia chalybea (Osmiini) (Hymenoptera, Megachilidae) - Hall, H. Glenn. (American Museum of Natural History, 2011)

Nesting biologies and immature stages of the tapinotaspidine bee genera Monoeca and Lanthanomelissa and of their osirine cleptoparasites Protosiris and Parepeolus (Hymenoptera, Apidae, Apinae) - Melo, Gabriel A. R. (American Museum of Natural History, 2006)

Nesting biologies and mature larvae of oxaeine bees (Apoidea, Andrenidae) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 2018)

Nesting biology and immature stages of the panurgine bee genera Rhophitulus and Cephalurgus (Apoidea, Andrenidae, Protandrenini) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 2014)

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

Nesting biology and mature larva of the bee Idiomelissodes duplocincta (Hymenoptera, Anthophoridae, Eucerini) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 1991)

Nesting biology, immature stages, and phylogenetic placement of the Palaearctic bee Pararhophites (Hymenoptera, Apoidea) - McGinley, Ronald J. (American Museum of Natural History, 1987)

Nesting biology of the solitary bee Epicharis albofasciata (Apoidea, Apidae, Centridini) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 2016)

Nests, floral preferences, and immatures of the bee Haetosmia vechti (Hymenoptera, Megachilidae, Osmiini) - Praz, Christophe J. (American Museum of Natural History, 2014)

Nests, petal usage, floral preferences, and immatures of Osmia (Ozbekosmia) avosetta (Megachilidae, Megachilinae, Osmiini), including biological comparisons with other osmiine bees - Praz, Christophe J. (American Museum of Natural History, 2010)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1886)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1908)

A new British flora : British wild flowers in their natural haunts - Horwood, A. R. (Arthur Reginald), 1879 -1937 (Gresham, 1919)

A new British flora; British wild flowers in their natural haunts - Horwood, A. R. (Arthur Reginald), 1879 -1937 (Gresham Pub. Co, 1919)

New data on Miocene butterflies in Dominican amber (Lepidoptera, Riodinidae and Nymphalidae) with the description of a new nymphalid - Peñalver, Enrique (American Museum of Natural History, 2006)

A new fossil orchid bee in Colombian copal (Hymenoptera, Apidae) - Engel, Michael S. (American Museum of Natural History, 2007)

New genera and subgenera of augochlorine bees (Hymenoptera: Halictidae) - Brooks, Robert W. (Natural History Museum, The University of Kansas, 1997)

A new genus of Eastern Hemisphere stingless bees (Hymenoptera, Apidae), with a key to the supraspecific groups of Indomalayan and Australasian Meliponini - Engel, Michael S. (American Museum of Natural History, 2017)

A new genus of hover wasps from Southeast Asia (Hymenoptera, Vespidae, Stenogastrinae) - Starr, Christopher K., 1949 - (American Museum of Natural History, 2000)

A new interpretation of the oldest fossil bee (Hymenoptera, Apidae) - Engel, Michael S. (American Museum of Natural History, 2000)

A new moustache wasp in Dominican amber, with an account of apoid wasp evolution emphasizing Crabroninae (Hymenoptera, Crabronidae) - Engel, Michael S. (American Museum of Natural History, 2006)

A new Palearctic genus of melectine bees (Hymenoptera, Apidae) - Engel, Michael S. (American Museum of Natural History, 2003)

A new species of Tetralonia (Thygatina) from India, with notes on the Oriental fauna (Hymenoptera, Apidae) - Engel, Michael S. (American Museum of Natural History, 2006)

A new species of the bee genus Eoanthidium with extraordinary male femoral organs from the Arabian Peninsula (Hymenoptera: Megachilidae) - Engel, Michael S. (Natural History Museum, University of Kansas, 2004)

A new subgenus of Megachile from Borneo with arolia (Hymenoptera, Megachilidae) - Engel, Michael S. (American Museum of Natural History, 2006)

New taxa of brachynomadine bees (Apidae, Nomadinae) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 1997)

Newman's entomologist (Simpkin, Marshall & Co, 1873)

Newman's entomologist (Simpkin, Marshall & Co, 1875)

Nihon senchu zukai 1 - Matsumura, Shōnen 1872 -1960 (Keiseisha, 1922)

Nihon senchu zukai - Matsumura, Shōnen 1872 -1960 ([Keiseisha?], 1904)

Nomenclator entomologicus. Verzeichniss der europäischen insecten; zur erleichterung des tauschverkehrs mit preisen versehen - Herrich-Schäffer, G. A. W. (Gottlieb August Wilhelm), 1799 -1874 (F. Pustet, 1835)

Nomenclator Entomologicus. Verzeichniss der europäischen Insecten; zur Erleichterung des Tauschverkehrs mit preisen Versehen - Herrich-Schäffer, G. A. W. (Gottlieb August Wilhelm), 1799 -1874 (F. Pustet, 1840)

Nomenclator entomologicus : Verzeichniss der europäischen Insecten, zur Erleichterung des Tauschverkehrs mit Preisen versehen - Herrich-Schäffer, G. A. W. (Gottlieb August Wilhelm), 1799 -1874 (Friedrich Pustet, 1835)

Nomenclator entomologicus : Verzeichniss der europäischen Insecten : zur Erleichterung des Tauschverkehrs mit Preisen versehen - Herrich-Schäffer, G. A. W. (Gottlieb August Wilhelm), 1799 -1874 (Friedrich Pustet, 1835)

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)

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)

Nomina conservanda - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft naturforschender Freunde zu Berlin, 1915)

Nomina systematica generum Hymenopterorum, tam viventium quam fossilium : secundum ordinem alpabeticum disposita, adjectis auctoribus, libris in quibus reperiunter, anno editionis, etymologia et familiis ad quas pertinent - Agassiz, Louis, 1807 -1873 (s.n, 1840)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2009)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2010)

Normentafeln zur Entwicklungsgeschichte der Wirbelthiere ... - Keibel, Franz, 1861 -1929 (G. Fischer, 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, 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, 1918)

North American native terrestrial orchids : propagation and production : conference proceedings, March 16 & 17, 1996, [held at the National Arboretum, Washington, D.C) - Allen, Carol (North American Native Terrestrial Orchid Conference, 1996)

Nota lepidopterologica - Societas Europaea Lepidopterologica (1977)

Nota lepidopterologica - Societas Europaea Lepidopterologica (1992)

Nota lepidopterologica - Societas Europaea Lepidopterologica (2002)

Notes on Southeast Asian stingless bees of the genus Tetragonula (Hymenoptera, Apidae), with the description of a new species from Thailand - Engel, Michael S. (American Museum of Natural History, 2017)

Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae - Cockerell, Theodore D. A. (Theodore Dru Alison), 1866 -1948 (1920)

Notiser ur Sällskapets pro Fauna et Flora Fennica förhandlingar - Societas pro Fauna et Flora Fennica (Sällskapet pro Fauna et Flora Fennica, 1848)

Notulae entomologicae - Helsingin Hyönteistieteellinen Yhdistys. ([Societas Entomologica Helsingforsiensis], 1921)

Nova Caledonia. Forschungen in Neu-Caledonien und auf den Loyalty-Inseln. Recherches scientifiques en Nouvelle-Calédonie et aux iles Loyalty. A. Zoologie - Sarasin, Fritz, 1859 -1942 (C.W. Kreidel, 1915)

Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée ... - Beaufort, L. F. de (Lieven Ferdinand), 1879 -1968 (E.J. Brill, 1908)

Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée ... - Beaufort, L. F. de (Lieven Ferdinand), 1879 -1968 (E.J. Brill, 1906)

Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée ... - Beaufort, L. F. de (Lieven Ferdinand), 1879 -1968 (E.J. Brill, 1917)

Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée ... - Beaufort, L. F. de (Lieven Ferdinand), 1879 -1968 (E.J. Brill, 1911)

Nova Guinea : résultats de l'expédition scientifique néerlandaise à la Nouvelle-Guinée ... - Beaufort, L. F. de (Lieven Ferdinand), 1879 -1968 (E.J. Brill, 1909)

Novapex : trimestriel de la Société belge de malacologie - Société belge de malacologie. (La Société, 2014)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1997)

Novon a journal of botanical nomenclature from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1998)

Nuove relazioni intorno ai lavori - R. Stazione di entomologia agraria in Firenze. (1899)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2000)

Nuytsia: journal of the Western Australian Herbarium - Western Australia. Department of Agriculture (Department of Biodiversity, Conservation and Attractions, 2016)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1910)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1913)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1919)

Observations on the nests and behavior of Trigona in Australia and New Guinea (Hymenoptera, Apidae) - Michener, Charles D. (Charles Duncan), 1918 -2015 (American Museum of Natural History, 1861)

Occasional paper - Entomological Society of British Columbia (The Society, 1994)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1869)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1977)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2010)

Occurrence, chemical characteristics, and paleontology of the fossil resins from New Jersey - Grimaldi, David A. (American Museum of Natural History, 1989)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1910)

Official lists and indexes of names and works in zoology Supplement 1986-2000 - International Commission on Zoological Nomenclature (International Trust for Zoological Nomenclature, c/o Natural History Museum, 2001)

Official lists and indexes of names and works in zoology - International Commission on Zoological Nomenclature (ICZN, 1987)

Ohio Biological Survey notes - Ohio Biological Survey. (Ohio Biological Survey, 2017)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1909)