Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1916)

Nederlandsch kruidkundig archief - Koninklijke Nederlandse Botanische Vereniging. (S. en J. Luchtmans, 1918)

Neptunia : rivista mensile per gli studi di scienza pura ed applicata sul mare e suoi organismi ([s.n.], 1891)

Neptunia : rivista mensile per gli studi di scienza pura ed applicata sul mare e suoi organismi ([s.n.], 1907)

Neptunia : rivista mensile per gli studi di scienza pura ed applicata sul mare e suoi organismi ([s.n.], 1908)

Neue Denkschriften der Allg. Schweizerischen Gesellschaft für die Gesammten Naturwissenschaften = Nouveau mémoires de la Société helvétique des sciences naturelles - Allgemeine Schweizerische Gesellschaft für die Gesamten Naturwissenschaften. (Schweizerische Gesellschaft für die Gesammten Naturwissenschaften, 1837)

Neue forstliche Blätter - Bühler, Anton, 1848 -1920 (Georg Schnürlen, 1902)

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, sub auspiciis et sumptibus C. R. Societatis zoologico-botanicae conscriptus a comite Augusto de Marschall - Marschall, August Friedrich, 1804 -1887 (typis C. Ueberreuter (M. Salzer), 1873)

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

Northcentral Montana coldwater lake ecosystems : 1998 annual report - Montana. Fisheries Division. (Montana Dept. of Fish, Wildlife and Parks, Fisheries Division, 1999)

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

Notes on Cladocera. Read December, 1877; printed with additions, November, 1878 - Birge, E. A. (Edward Asahel), 1851 -1950 (D. Atwood, State Printer, 1878)

Nova acta Regiae Societatis Scientiarum Upsaliensis - Kungl. Vetenskaps-societeten i Uppsala. (Almqvist & Wiksells, 1901)

Nuova notarisia, rassegna consacrata allo studio delle alghe - Toni, Giovanni Battista de, 1864 -1924 (1899)

Nutrient cycling in the Great Lakes : a summarization of factors regulating the cycling of phosphorus - University of Michigan. Great Lakes Research Division. (University of Michigan, Great Lakes Environmental Research Laboratory, Cooperative Program in Great Lakes Longterm Effects Research, 1980)

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

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1864)

Occasional papers - Boston Society of Natural History. (1904)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1905)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1899)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1901)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1904)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1905)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1906)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1907)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1854)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1891)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1893)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1894)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1899)

The Ohio journal of science - Ohio Academy of Science. (Ohio Academy of Science, 1918)

On the classification and geographical distribution of crustacea; from the report on crustacea of the United States exploring expedition, under Captain Charles Wilkes, U.S.N., during the years 1838-1842 - Dana, James Dwight, 1813 -1895 (Sherman, 1853)

On the classification and geographical distribution of Crustacea - Dana, James Dwight, 1813 -1895 (C. Sherman, 1853)

On the structure of the brain of the sessile-eyed Crustacea - Packard, A. S. (Alpheus Spring), 1839 -1905 (National Academy of Sciences, 1884)

One thousand objects for the microscope - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (F. Warne, 1869)

One thousand objects for the microscope - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Frederick Warne, 1869)

Ornithological notes - Herrick, C. L. (Clarence Luther), 1858 -1904 (Geological and Natural History Survey of Minnesota, 1877)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1914)

Partial syllabic lists of the clinical morphologies of the blood, sputum, feces, skin, urine, vomitus, foods : including potable waters, ice and the air, and the clothing (after Salisbury) - Cutter, Ephraim, 1832 -1917 (The Ariston, 1888)

Pflanzenphysiologie; Versuche und Beobachtungen an böheren und niederen Pflanzen einschliesslich Bakteriologie und Hydrobiologie mit Planktonkunde - Kolkwitz, R. (Richard), 1873 -1956 (G. Fischer, 1922)

Pflanzenphysiologie. Versuche und beobachtungen an höheren und niederen pflanzen einschliesslich bakteriologie und hydrobiologie mit planktonkunde - Kolkwitz, R. (Richard), 1873 -1956 (G. Fischer, 1914)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1919)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1920)

Die Phyllopoden, Cladoceren und freilebenden Copepoden der nord- schwedischen Hochgebirge : ein Beitrag zur Tiergeographie, Biologie und Systematik der arktischen, nord- und mittel-europäischen Arten - Ekman, Sven, 1876 -1964 (G. Fischer, 1904)

Phylogeny and evolution of Crustacea : proceedings of a conference held at Cambridge, Mass, March 6-8, 1962 - Whittington, H. B. (Harry Blackmore), 1916 -2010 (Museum of Comparative Zoology, 1963)

Pilot control project using trichloforn [i.e. trichlorfon] and Bacillus thuringiensis against forest tent caterpillar in southwest Alabama - Abrahamson, Lawrence P. (U.S. Dept. of Agriculture, Forest Service, States & Private Forestry, Southeastern Area, 1980)

The plankton of Lake Winnebago and Green Lake - Marsh, C. Dwight (Charles Dwight), 1855 -1932 (Published by the State, 1903)

The plankton of the Illinois river, 1894-1899, with introductory notes upon the hydrography of the Illinois river and its basin - Kofoid, Charles A. (Charles Atwood), 1865 -1947 (1903)

The plankton of the Illinois river, 1894-1899, with introductory notes upon the hydrography of the Illinois river and its basin - Kofoid, Charles A. (Charles Atwood), 1865 -1947 (1908)