Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2002)

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 later Tertiary and Quaternary Bryozoa - Bassler, Ray S. (Ray Smith), 1878 -1961 (Govt. Print. Off, 1923)

The North American sylva, or, A description of the forest trees of the United States, Canada, and Nova Scotia, not described in the work of F. Andrew Michaux and containing all the forest trees discovered in the Rocky Mountains, the territory of Oregon, down to the shores of the Pacific and into the confines of California, as well as in various parts of the United States : illustrated by 122 fine plates - Nuttall, Thomas, 1786 -1859 (Smith & Wistar, 1849)

The North American sylva, or, A description of the forest trees of the United States, Canada, and Nova Scotia, not described in the work of F. Andrew Michaux and containing all the forest trees discovered in the Rocky Mountains, the territory of Oregon, down to the shores of the Pacific, and into the confines of California, as well as in various parts of the United States ; illustrated by 121 colored plates - Nuttall, Thomas, 1786 -1859 (R. Baldwin, 1853)

The North American sylva; or, A description of the forest trees of the United States, Canada and Nova Scotia. Considered particularly with respect to their use in the arts and their introduction into commerce. To which is added a description of the most useful of the European forest trees ... - Nuttall, Thomas, 1786 -1859 (Rice, Rutter & co, 1865)

The North American sylva or, a description of the forest trees of the United States, Canada, and Nova Scotia, considered particularly with respect to their use in the arts and their introduction into commerce, to which is added a description of the most useful of the European forest trees : illustrated by 156 colored engravings - Nuttall, Thomas, 1786 -1859 (Published by Rice, Rutter & Co. No. 525 Minor Street, 1865)

... North Pacific ophiurans in the collection of the United States National museum - Clark, Hubert Lyman, 1870 -1947 (Govt. print. off, 1911)

North Pacific ophiurans in the collection of the United States National museum - Clark, Hubert Lyman, 1870 -1947 (Govt. print. off, 1911)

Northern grown seeds : plants, bulbs, fruits 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. May & Co, 1909)

Northern Territory Naturalist - Northern Territory Field Naturalists' Club (, Northern Territory Field Naturalists' Club, 2014)

Nota lepidopterologica - Societas Europaea Lepidopterologica (1989)

Notes, chiefly botanical, of a visit to the Island of Coll - Scott, Thomas, 1840 -1929 (Natural History Society of Glasgow, 1880)

Notes concerning the history and contents of the Museum of Comparative Zoölogy - Harvard University. Museum of Comparative Zoology. (1936)

Notes from the Leyden Museum - Rijksmuseum van Natuurlijke Historie te Leiden. (E.J. Brill, 1884)

Notes from the Leyden Museum - Rijksmuseum van Natuurlijke Historie te Leiden. (E.J. Brill, 1914)

Notes of a botanist on the Amazon & Andes; being records of travel on the Amazon and its tributaries, the Trombetas, Rio Negro, Uaupâes, Casiquiari, Pacimoni, Huallaga and Pastasa; as also to the cataracts of the Orinoco, along the eastern side of the Andes of Peru and Ecuador, and the shores of the Pacific, during the years 1849-1864 - Wallace, Alfred Russel, 1823 -1913 (Macmillan and co., limited, 1908)

Notices of the proceedings at the meetings of the members of the Royal Institution, with abstracts of the discourses - Royal Institution of Great Britain. (W. Nicol, Printer to the Royal Institution, 1899)

Notulae systematicae - Laboratoire de phanérogamie (Muséum national d'histoire naturelle) (J. Dumoulin, 1909)

Nouveau dictionnaire d'histoire naturelle, appliquée aux arts, à l'agriculture, à l'économie rurale et domestique, à la médecine, etc (Chez Deterville, 1816)

Nouveau dictionnaire d'histoire naturelle, appliquée aux arts, à l'agriculture, à l'économie rurale et domestique, à la médecine, etc (Chez Deterville, 1817)

Nouveaux mémoires de l'Académie royale des sciences et belles-lettres de Bruxelles - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1844)

Nouveaux mémoires de l'Académie royale des sciences et belles-lettres de Bruxelles - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1845)

Nouvelle flore des champignons, pour la détermination facile de toutes les espèces de France et de la plupart des espèces européennes, avec 3842 figures - Dufour, Léon, 1780 -1865 (Librairie classique et administrative, 1891)

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

Nouvelles archives du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Masson et Cie, 1884)

Nouvelles suites à Buffon (Roret, 1854)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1883)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1871)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1899)

Nova genera ac species plantarum, quas in regno Chilensi Peruviano et in terra Amazonica :annis MDCCCXXVII ad MDCCCXXXII - Poeppig, Eduard, 1798 -1868 (Sumptibus F. Hofmeister, 1835)

Nova genera ac species plantarum, quas in regno Chilensi Peruviano et in terra Amazonica :annis MDCCCXXVII ad MDCCCXXXII - Poeppig, Eduard, 1798 -1868 (Sumptibus F. Hofmeister, 1838)

Nova genera et species plantarum :quas in peregrinatione ad plagam aequinoctialem orbis novi collegerunt /descripserunt, partim adumbraverunt Amat. Bonpland et Alex. de Humboldt ; ex schedis autographis Amati Bonplandi in ordinem digessit Carol. Sigismund. Kunth ... - Kunth, Karl Sigismund, 1788 -1850 (Ex officina Christophori Plantini, 1815)

Nova genera et species plantarum :quas in peregrinatione ad plagam aequinoctialem orbis novi collegerunt /descripserunt, partim adumbraverunt Amat. Bonpland et Alex. de Humboldt ; ex schedis autographis Amati Bonplandi in ordinem digessit Carol. Sigismund. Kunth ... - Kunth, Karl Sigismund, 1788 -1850 (Ex officina Christophori Plantini, 1818)

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

Nova plantarum, animalium et mineralium Mexicanorum historia - Colonna, Fabio, 1567 -1650 (Sumptibus Blasij Deuersini, & Zanobij Masotti bibliopolarum, typis Vitalis Mascardi, 1651)

Novæ Hollandiæ plantarum specimen - Labillardière, Jacques Julien Houton de, 1755 -1834 (Ex typographia Dominæ Huzard, 1806)

Nuova flora analitica d'Italia, contenente la descrizione delle piante vascolari indigene inselvatichite e largamente coltivate in Italia - Fiori, Adriano 1865 -1950 (Tipografia di M. Ricci, 1923)

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

Nuovo catalogo delle Conchiglie terrestri e fluviatili della Sicilia o continunzione alla Illustrazione sistèmatica, &c - Benoit, Luigi, 1804 -1890 (1881)

Nützliche und schädliche Insekten im Walde - Lohrenz, Kuno. (Halle a.S. Hermann Gesenius, 1907)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1879)

Observations et Mémoires sur la Physique, sur l'Histoire Naturelle et sur les Arts et Métiers, etc (1787)

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

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

Om Galapagos-hoarnes vegetation - Andersson, N. J. (Nils Johan), 1821 -1880 (Norstedt, 1857)

On British wild flowers considered in relation to insects - Lubbock, John, Sir, 1834 -1913 (Macmillan, 1909)

On "Molecular phylogeny of Vespidae (Hymenoptera) and the evolution of sociality in wasps" - Schmitz, J. (Jürgen) (American Museum of Natural History, 2003)

On the fauna and flora of the west of Scotland. Meeting at Glasgow, September, 1876 - British Association for the Advancement of Science. (Blackie, 1876)

On the setal pattern of caterpillars and pupae - Schierbeek, Abraham, 1887 - (E.J. Brill, 1917)

Onomasticon zoicon, plerorumque animalium differentias & nomina propria pluribus linguis exponens : cui accedunt Mantissa anatomica, et quaedam De variis fossilium generibus - Charleton, Walter, 1619 -1707 (Apud Jacobum Allestry ..., 1668)

The ontogeny of insects; [papers] - Ceskoslovenská akademie ved. Sekce biologicka-lékarská. (Academic Press, 1960)

Oocytes, eggs, and ovarioles of some long-tongued bees (Hymenoptera, Apoidea) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 2003)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1954)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1956)

Opuscula entomologica - Thomson, C. G. (Carl Gustav), 1824 -1899 (1869)

Opuscula subseciva, observationes miscellaneas de animalculis et plantis quibusdam marinis, eorumque ovariis et seminibus continentia - Baster, Job, 1711 -1775 (apud J. Bosch, 1762)

The orchids of the Cape Peninsula - Bolus, Harry, 1834 -1911 (the Society, 1888)

The orders of mammals - Gregory, William K. (William King), 1876 -1970 (The Trustees, 1910)

The Oregon naturalist (Naturalist Pub. Co, 1896)

Ornamental shrubs and trees fruit trees shrub and tree seed - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Germain, 1934)

Ornamental trees and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1908)

The Orthoptera of Indiana : an illustrated descriptive catalogue of the species known to occur in the state, with bibliography, synonymy and descriptions of new species - Blatchley, W. S. (Willis Stanley), 1859 -1940 ([Indiana Dept. of Geology and Natural Resources, 1903)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1895)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1899)

Otto M. Locke & Bros. Nursery Co. season 1928-1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto M. Locke & Bros. Nursery Co, 1928)

Our country's shells and how to know them : a guide to the British mollusca - Gordon, W. J. (Simpkin, Marshall, Hamilton, Kent & Co, 1901)

Our living world; an artistic edition of the Rev. J. G. Wood's Natural history of animate creation - Wood, J. G. (John George), 1827 -1889 (S. Hess, 1885)

Our twenty-eighth annual catalogue speaks for our responsibility - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Drumm Seed and Floral Co, 1917)

Out of the desert cacti and succulents : 1925-1926 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.I. Beecroft, 1925)

Outlines of British fungology. Supplement - Smith, Worthington George, 1835 -1917 (L. Reeve, 1891)

Outlines of comparative anatomy : intended principally for the use of students - Fyfe, Andrew, 1754 -1824 (Printed by J. Pillans & sons for Adam Black, South Bridge Street, 1813)

Outlines of entomology - Murtfeldt, Mary Esther, 1848 -1913 (Tribune Printing Company, State Printers and Binders, 1891)

Outlines of entomology - Murtfeldt, Mary Esther, 1848 -1913 (Tribune printing company, state printers and binders, 1891)

Outlines of general zoology - Baird, Spencer Fullerton, 1823 -1887 (Rudolph Garrigue, 1851)

Outlines of the natural history of Great Britain and Ireland, containing a systematic arrangement and concise description of all the animals, vegetables and fossiles which have hitherto been discovered in these kingdoms - Berkenhout, John, 1730 -1791 (Printed for P. Elmsly (Successor to Mr. Vaillant), 1769)

Ovarioles and oocytes of two Old World cleptoparasitic bees with biological notes on Ammobatoides (Hymenoptera, Apidae) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 2001)

Oxford gardens, based upon Daubeny's Popular guide to the physick garden of Oxford: with notes on the gardens of the colleges and on the University park - Gunther, R. T. (Robert Theodore), 1869 -1940 (Parker & son; [etc., etc.], 1912)

Oxford gardens. Based upon Daubeny's Popular guide to the physick garden of Oxford : with notes on the gardens of the colleges and on the University Park - Gunther, R. T. (Robert Theodore), 1869 -1940 (Parker, 1912)

Oysters, and all about them : being a complete history of the titular subject, exhaustive on all points of necessary and curious information from the earliest writers to those of the present time, with numerous additions, facts, and notes - Philpots, John Richards. (J. Richardson, 1890)

P. Dioscoridae pharmacorum simplicium reiq[ue] medicae libri VIII - Barbaro, Ermolao, 1454 -1493 (Apud Io. Schottum, 1529)

P.A. Latreille scientiarum et artium instituti Gallici ... Genera crustaceorum et insectorum : secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata - Latreille, P. A. (Pierre André), 1762 -1833 (Apud Amand Knig, Bibliopolam, 1806)

P.A. Latreille scientiarum et artium instituti Gallici ... Genera crustaceorum et insectorum : secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata - Latreille, P. A. (Pierre André), 1762 -1833 (Apud Amand Knig, Bibliopolam, 1807)

P.A. Latreille scientiarum et artium instituti Gallici ... Genera crustaceorum et insectorum : secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata - Latreille, P. A. (Pierre André), 1762 -1833 (Apud Amand Knig, Bibliopolam, 1809)

Pacific States Floral Congress. [Papers] - California State Floral Society. (Academy of sciences, 1901)

Page's home floriculture; a complete guide for the growing of flowers in the house and garden - Page, Chas. N. (Charles Nash), 1860 - (The author, 1911)

Palais de San Donato : Catalogue de plantes rares garnissant les serres, dont la vente aux enchères publiques aura lieu à Florence, au Palais de San Donato, du vendredi 23 avril au mardi 4 mai 1880 à une heure précise - Palais De San Donato, Florence (1879)

Paleontologia del regno di Napoli : contenente la descrizione e figura di tutti gli avanzi organici fossili racchuisi nel suolo di questo regno - Costa, Oronzio Gabriele, 1789 -1867 (Tramater, 1850)

Paléontologie française : description zoologique et géologique de tous les animaux mollusques et rayonnés fossiles de France : comprenant leur application à la reconnaissance des couches - Orbigny, Alcide Dessalines d', 1802 -1857 (Chez l'auteur, 1840)

Palm trees of the Amazon and their uses - Wallace, Alfred Russel, 1823 -1913 (J. Van Voorst, 1853)

Le palme americane della tribù delle Corypheae - Beccari, Odoardo, 1843 -1920 (Tipografia M. Ricci, 1907)

Les palmiers; histoire iconographique, géographie–paléontologie–botanique–description–culture–emploi, etc., avec index général des noms et synonymes des espèces connues - Kerchove de Denterghem, Oswald, comte de, 1844 -1906 (J. Rothschild, 1878)

Les palmiers; observations sur la monographie de cette famille dans la flora brasiliensis - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (Messager du Brésil, 1882)

The palms of British India and Ceylon - Blatter, Ethelbert, 1877 -1934 (H. Milford, 1926)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1885)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1939)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1965)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1966)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1973)

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, 1981)

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, 1986)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1987)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1988)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1993)

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, 1996)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1997)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 2000)

The Panamic deep sea Echini / by Alexander Agassiz - Agassiz, Alexander, 1835 -1910 (Printed for the Museum, 1904)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1877)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1915)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1918)

Papers presented at the Celebration of the Twentieth Anniversary of the New York Botanical Garden, September 6-9, 1915. Published by the aid of the David Lydig Fund, bequethed by Charles P. Daly - New York Botanical Garden (1916)

Parasitic behavior of Exaerete smaragdina with descriptions of its mature oocyte and larval instars (Hymenoptera, Apidae, Euglossini) - Garófalo, Carlos Alberto (American Museum of Natural History, 2001)

Parerga lichenologica : Ergänzungen zum Systema lichenum Germaniae - Körber, Gustav Wilhelm, 1817 -1885 (E. Trewendt, 1865)

Part I. Palæontology - Hall, James, 1811 -1898 (Govt. print. off, 1877)

Part I. The living flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (Wheeling news litho. co, 1913)

Parte práctica de botánica del caballero Cárlos Linneo, que comprehende las clases, órdenes, géneros, especies y variedades de las plantas, con sus caracteres genéricos y especificos, sinónimos mas selectos, nombres triviales, lugares donde nacen, y propriedades - Linné, Carl von, 1707 -1778 (En la Imprenta Real, 1784)