The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1923)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1927)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1937)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1955)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2015)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1900)

Naturen : illustreret maanedsskrift for populaer naturvidenskab - Bergens Museum. (E. B. Giertsen [etc.], 1914)

Naturhistorisk tidsskrift - Schiødte, J. C. (Jørgen Matthias Christian), 1815 -1884 (C.A. Reitzel, 1838)

Naturhistorisk tidsskrift - Schiødte, J. C. (Jørgen Matthias Christian), 1815 -1884 (C.A. Reitzel, 1844)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1918)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1920)

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

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, 1926)

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

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 systematica generum Dipterorum, 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, 2002)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2006)

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)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1913)

Nuove relazioni intorno ai lavori - R. Stazione di entomologia agraria in Firenze. (1902)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1863)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1870)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1915)

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)

On the power, wisdom and goodness of God, as manifested in the creation of animals, and in their history, habits and instincts - Kirby, William, 1759 -1850 (Carey, Lea & Blanchard, 1836)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1897)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1900)

Palaeontographica (Theodor Fischer, 1861)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1881)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1949)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1951)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1957)

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, 1974)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1989)

Papers on Diptera - Hendel, Friedrich, 1874 -1936 (Smithsonian Institution, 1909)

Papers on Diptera - Melander, A. L. (Axel Leonard), 1878 -1962 (Smithsonian Institution, 1913)

Parasitology (Cambridge University Press, 1922)

Periódico zoológico - Sociedad Entomológica Argentina. (Sociedad Entomica Argentina, 1874)

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

Petites nouvelles entomologiques (E. Deyrolle, 1869)

Die Pflanzenfeinde aus der Klasse der Insekten. Ein nach Pflanzenfamilien geordnetes Handbuch sämmtlicher auf den einheimischen Pflanzen bisher beobachteten Insekten zum Gebrauch für Entomologen, Insektensammler, Botaniker, Land- und Forstwirthe und Gartenfreunde - Kaltenbach, J. H. (Johann Heinrich), 1807 -1876 (J. Hoffmann, 1874)

Die Pilze (Fungi) von Tirol, Vorarlberg und Liechtenstein - Magnus, P. (Paul), 1844 -1914 (Verlag der Wagner'schen Universitts-Buchh, 1905)

Pinacographia. Illustrations of more than 1,000 species of north-west-European Ichneumonide, sensu Linnaeano. Afbeeldingen van meer dan 1,000 soorten noord-west-europeesche sluipwespen (ichneumones sensu Linnaeano) - Snellen van Vollenhoven, S. C. (Samuel Constant), 1816 -1880 (M. Nijhoff, 1880)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1955)

Plantsman - New Hampshire Plant Growers' Association. (1997)

Plantsman - New Hampshire Plant Growers' Association. (1998)

Practical foresty; a popular handbook on the rearing and growth of trees for profit or ornament - Webster, A. D. (Angus Duncan), 1855 -1931 (W. Rider, 1917)

A preliminary list of the insects of the province of Quebec part II –Diptera (two-winged flies) - Beaulieu, Germain, 1870 -1944 (s.n, 1915)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1974)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1978)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1980)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1983)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1950)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1953)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1956)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1959)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1962)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1928)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1944)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1949)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1922)