Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1893)

Memoria premiada sobre la distribucion geografica de las plantas coneíferas, leguminosas, rosaceas, salsolaceas, amentáceas, coníferas y gramineas de la Península Ibérica - Amo y Mora, Mariano del, 1820 -1896 (Aguado, 1861)

Memorial of life and entomologic work of Joseph Albert Lintner ... state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Memorial of life and entomologic work of Joseph Albert Lintner, state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1861)

Memorias de la Real Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (s.n.], 1911)

Memorie del Reale Istituto Veneto di Scienze, Lettere ed Arti - Regio Istituto veneto di scienze, lettere ed arti (Venice, Italy) (1858)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1848)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1905)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1906)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1912)

Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano - Museo civico di storia naturale di Milano. (La Società, 1998)

Der Mensch - Ranke, Johannes, 1836 -1916 (Bibliographisches Institut, 1886)

The Metaspermae of the Minnesota Valley. A list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

The Metaspermae of the Minnesota Valley : a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 (Geological and Natural History Survey of Minnesota, 1892)

The Metaspermae of the Minnesota Valley; a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

The Metaspermae of the Minnesota valley; a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota river - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

Mexicanas plantas nuper a collectoribus expeditionis scientificae allatas :aut longis ab annis in herbario musei parisiensis depositas - Fournier, Eugène, 1834 -1884 (ex Typographeo Reipublicae, 1886)

Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Verlag des Bibliographischen Instituts, 1890)

Michigan flora : a list of the fern and seed plants growing without cultivation - Beal, W. J. (William James), 1833 -1924 (State Board of Agriculture, 1904)

Michigan flora. Prepared for the thirtieth annual report of the Secretary of the State Board of Agriculture - Michigan. State Board of Agriculture. (R. Smith & co., printers, 1892)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1879)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1885)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1892)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1893)

Die mikroskopischen Pilze - Lindau, Gustav, 1866 -1923 (J. Springer, 1922)

Mildews, rusts, and smuts. A synopsis of the families, Peronosporaceae, Erysiphaceae, Uredinaceae and Ustilaginaceae - Massee, George, 1850 -1917 (Dulau and Company, 1913)

Minnesota botanical studies - Geological; Natural History Survey of Minnesota. (Geological and Natural History Survey of Minnesota, 1903)

The miscellaneous botanical works of Robert Brown ... - Brown, Robert, 1773 -1858 (Published for the Ray society by R. Hardwicke, 1866)

The miscellaneous botanical works of Robert Brown - Brown, Robert, 1773 -1858 (Published for the Ray society by R. Hardwicke, 1866)

Mitteilungen aus dem Botanischen Museum der Universität Zürich - Universität Zürich. Botanisches Museum. (Botanisches Museum der Universität Zürich], 1920)

Mitteilungen aus dem Naturwissenschaftlichen Verein für Neuvorpommern und Rügen in Griefswald ... - Naturwissenschaftlicher Verein für Neuvorpommern und Rügen, Greifswald. (1913)

Mitteilungen aus den Botanischen Staatsinstituten in Hamburg - Botanische Staatsinstitut (Hamburg, Germany) (L. Gräfe & Sillem, 1910)

Mitteilungen der Bayerischen Botanischen Gesellschaft zur Erforschung der Heimischen Flora (E.V.) - Bayerische Botanische Gesellschaft zur Erforschung der Heimischen Flora. (Selbstverlag der Gesellschaft, 1906)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1951)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1896)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1897)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1900)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1905)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1904)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1909)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1865)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1882)

Modern practical farriery : a complete system of the veterinary art as at present practised at the Royal Veterinary College, London - Miles, W. J. (Gresham Pub. Co, 1875)

The mollusca of Somerset; land, freshwater, estuarine and marine - Swanton, Ernest W. (Somersetshire Archaeological and Natural History Society, 1912)

Monograph of the British aphides ... - Buckton, George Bowdler, 1817 -1905 (Printed for the Ray Society, 1876)

Monograph of the British Cicadae or Tettigidae - Buckton, George Bowdler, 1817 -1905 (Macmillan & Co, 1891)

Monographie der Familien der Pflanzenläuse (Phytophthires) - Kaltenbach, J. H. (Johann Heinrich), 1807 -1876 (In Commission der Roschütz'schen Buchandlung, 1843)

Monographie der Familien der Pflanzenläuse (phytophthires). 1. Th, Die Blatt- und Erdläuse (Aphidina et Hyponomeutes) - Kaltenbach, J. H. (Johann Heinrich), 1807 -1876 (Roschütz, 1843)

Morphologie und Physiologie der Pilze, Flechten und Myxomyceten - Bary, A. de (Anton), 1831 -1888 (W. Engelmann, 1866)

Mycologisches Centralblatt = Mycological review = Revue mycologique = Revista micologica : Zeitschrift für allgemeine und angewandte Mycologie : Organ für wissenschaftliche Forschung auf den Gebieten der allgemeinen Mycologie, Gärungschemie und technischen Mycologie - Wehmer, C. (Carl), 1858 -1935 (G. Fischer, 1913)

Die Mysterien der Europäischen Insectenwelt. Ein geheimer Schlüssel für Sammler aller Insectenordnungen und Stände, behufs des Fangs, des Aufenthalts-orts, der Wohnung, Tag- und Jahreszeit ... - Gistel, Johannes, 1809 - (Druck und Verlag von Tobias Dannheimer, 1856)

Názorná kvĕtena zemí koruny c̆eské, obsahujíci téz̆ c̆elnĕjs̆í rostliny cizozemské, pĕstované u nás pro uz̆itek a okrasu, se zvlás̆tním zr̆etelem k zjevům z̆ivotním - Polivka, František, 1923 (Nákl. R. Prombergra, 1904)

Názorná kvĕtena zemí koruny c̆eské, obsahujíci téz̆ c̆elnĕjs̆í rostliny cizozemské, pĕstované u nás pro uz̆itek a okrasu, se zvlás̆tním zr̆etelem k zjevům z̆ivotním - Polivka, František, 1923 (Nákl. R. Prombergra, 1902)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1983)

Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft - Deutsche Malakozoologische Gesellschaft (Verlag W. Küchler, 1873)

Narrative of an expedition through the upper Mississippi to Itasca Lake, the actual source of this river : embracing an exploratory trip through the St. Croix and Burntwood (or Broule) Rivers, in 1832 - Schoolcraft, Henry Rowe, 1793 -1864 (Harper, 1834)

The native grasses of Kansas - Kellerman, W. A. (William Ashbrook), 1850 -1908 (1889)

Native Plant Society of Oregon - Native Plant Society of Oregon. (The Society, 2009)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1904)

A natural arrangement of British plants : according to their relations to each other as pointed out by Jussieu, De Candolle, Brown, &c - Gray, Samuel Frederick, 1766 -1828 (Baldwin, Cradock, and Joy, 1821)

The natural history of Dee Side and Braemar - Lankester, Edwin, 1814 -1874 ([Printed for private circulation by Bradbury and Evans], 1855)

The natural history of Dee Side and Braemar - Lankester, Edwin, 1814 -1874 (Printed for private circulation [by Bradbury and Evans], 1855)

Natural history of New York (D. Appleton, 1842)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1843)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1848)

The natural history of plants : their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie & son, limited, 1902)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt and Company, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun ... Tr. and ed. by F.W. Oliver ... with the assistance of Marian Busk ... and Mary F. Ewart ... With about 2000 original woodcut illustrations and sixteen plates in colours - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt and company, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun ... Tr. and ed. by F.W. Eliver ... with the assistance of Marian Busk ... and Mary F. Ewart - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1894)

The natural history of plants, their forms, growth reproduction, and distribution; from the German of Anton Kerner von Marilaun - Kerner von Marilaun, Anton, 1831 -1898 (Blackie & Son, 1895)

The natural history of plants; their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1896)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt, 1895)

The natural history of plants; their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1894)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1902)

A natural history of the ducks - Fuertes, Louis Agassiz, 1874 -1927 (Houghton Mifflin Company, 1923)

The Natural History of the Scarborough district - Rimington, F. C. (Scarborough Field Naturalists' Society, 1953)

The natural history of the Toronto region, Ontario, Canada - Glenny, George, 1793 -1874 (Pub. by the Canadian institute, 1913)

The natural history of the Toronto region, Ontario, Canada - Glenny, George, 1793 -1874 (Canadian Institute, 1913)

The Natural history of the Toronto Region, Ontario, Canada - Faull, J. H. (Joseph Horace), 1870 -1961 (Canadian Institute, 1913)

The natural history review - Belfast Natural History; Philosophical Society. (Hodges & Smith, 1856)

The natural history review - Belfast Natural History; Philosophical Society. (Hodges & Smith, 1861)

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, 1882)

Naturalhistoriska anteckningar om Åland - Bergstrand, Carl Erik, 1830 -1913 (Tryckt hos J. Beckman, 1851)

The naturalisation of animals & plants in New Zealand - Thomson, George Malcolm 1848 -1933 (University Press, 1922)

The naturalisation of animals & plants in New Zealand - Thomson, George Malcolm 1848 -1933 (The University Press, 1922)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1886)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1888)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1891)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1894)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1895)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1896)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1897)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1902)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1904)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1911)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1912)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1913)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1915)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1918)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1920)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1921)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1929)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1930)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1934)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1935)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1936)

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

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1939)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1943)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1949)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1951)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1957)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1959)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1961)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1963)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1968)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1972)