Monographs of the Diptera of North America - Osten-Sacken, C. R. (Carl Robert), 1828 -1906 (Smithsonian Institution, 1862)

Monographs of the Diptera of North America - Loew, H. (Hermann), 1807 -1879 (The Institutions, 1873)

Monographs of the Diptera of North America - Osten-Sacken, C. R. (Carl Robert), 1828 -1906 (The Institution, 1864)

Moths - Bell, Thomas Reid Davys, 1863 -1948 (Taylor and Francis; [etc., etc.], 1937)

Musaeum Kircherianum, sive, Musæum a P. Athanasio Kirchero in Collegio Romano Societatis Jesu : jam pridem incoeptum nuper restitutum, auctum, descriptum, & iconibus illustratum - Buonanni, Filippo, 1638 -1725 (typis Georgii Plachi, 1709)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1957)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1970)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1977)

The National Collection of Coccidae - United States. Bureau of Entomology. (G.P.O, 1908)

National Museum, Victoria, Marine Invertebrate Registers - Museums Victoria (National Museum of Victoria, 1860)

The natural history of Barbados : in ten books - Ehret, Georg Dionysius, 1708 -1770 (Printed for the author, 1750)

The natural history of Barbados :In ten books - Hughes, Griffith, 1706 or 7 - (Printed for the author, 1750)

The natural history of Barbados. In ten books - Hughes, Griffith, 1706 or 7 - (Printed for the author, 1750)

The natural history of Sokotra and Abdel-Kuri : being the report upon the results of the Conjoint Expedition to these Islands in 1898-9, by Mr. W.R. Ogilvie-Grant ... and Dr. H.O. Forbes ... - Forbes, Henry O. (Henry Ogg), 1851 -1932 (The Free Public Museums, Henry Young and Sons, 1903)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1910)

A naturalist in the Bahamas - Osborn, Henry Fairfield, 1857 -1935 (Columbia University Press, 1910)

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)

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)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1922)

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

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

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Nesting biologies and immature stages of the rophitine bees (Halictidae) : with notes on the cleptoparasite Biastes (Anthophoridae) (Hymenoptera, Apoidea) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 1993)

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 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 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)

Nests and immature stages of the bee Paratetrapedia swainsonae (Hymenoptera, Anthophoridae) - Michener, Charles D. (Charles Duncan), 1918 -2015 (American Museum of Natural History, 1988)

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

Neuer Schauplatz der Natur nach den richtigen Beobachtungen und Versuchen in Alphabetischer Ordnung (bey M.G. Weidmanns Erben und Reich, 1775)

A new and copious lexicon of the Latin language .... - Leverett, F. P. (Frederick Percival), 1803 -1836 (Wilkins, Carter and co, 1851)

The new dispensatory ... : the whole interspersed with practical cautions and observations : intended as a correction, and improvement of Quincy - Lewis, William, 1708 -1781 (Printed for J. Nourse, opposite Catharine Street in the Strand, 1753)

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

A new ground-nesting genus of xeromelissine bees from Argentina, and the tribal classification of the subfamily (Hymenoptera, Colletidae) - Michener, Charles D. (Charles Duncan), 1918 -2015 (American Museum of Natural History, 1999)

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

... New species of North American Coleoptera - LeConte, John L. (John Lawrence), 1825 -1883 (Smithsonian institution, 1863)

A new species of Ululodes owlfly (Ascalaphidae: Ululodinae) from Cave Creek Canyon in the Chiricahua Mountains of Arizona - Jones, Joshua R. (American Museum of Natural History, 2024)

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New York Shell Club notes - New York Shell Club. (The Club, 1962)

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New York Shell Club notes - New York Shell Club. (The Club, 1950)

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

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)