Maravilhas da creação : ou historia e descripção illustrada dos animaes comprehendendo mamíferos, aves, reptis e peixes, compilação das obras dos mais notaveis naturalistas estrangeiros - Posser, Pedro M. (Lallemant, 1879)

McCullough's garden book, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. Chas. McCullough Seed Co, 1947)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1899)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1901)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1895)

Medical and physical researches, or, Original memoirs in medicine, surgery, physiology, geology, zoology, and comparative anatomy - Harlan, Richard, 1796 -1843 (printed by L.R. Bailey, 1835)

Medical zoology, and mineralogy : or, illustrations and descriptions of the animals and minerals employed in medicine, and of the preparations derived from them: including also an account of animal and mineral poisons: with figures coloured from nature - Royal College of Physicians of Edinburgh. (John Churchill, 1838)

Medical zoology, and mineralogy; or, Illustrations and descriptions of the animals and minerals employed in medicine, and of the preparations derived from them: including also an account of animal and mineral poisons - Stephenson, John, 1790 -1864 (J. Wilson, 1832)

Memórias do Instituto Oswaldo Cruz - Instituto Oswaldo Cruz (1912)

Memórias do Instituto Oswaldo Cruz - Instituto Oswaldo Cruz (1916)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1869)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1873)

Mémoires de l'Académie Impériale des Sciences, Littérature et Beaux-Arts de Turin : Littérature et Beaux-Arts - Reale accademia delle scienze di Torino (Imprimerie de l'Académie Impériale des Sciences, 1805)

Mémoires de l'Académie (royale) des sciences de l'Institut (imperial) de France - Académie royale des sciences (France) (1853)

Mémoires de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1849)

Mémoires de la Société d'émulation du Doubs - Société d'émulation du Doubs. ([La Société], 1906)

Mémoires de la Société des sciences naturelles de Saône-et-Loire - Société des sciences naturelles de Saône-et-Loire. (Société des sciences naturelles de Saône-et-Loire, 1884)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1974)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1916)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1917)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1920)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1874)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1881)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1912)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 1990)

Memorias da Academia Real das Sciencias de Lisboa - Academia Real das Sciencias de Lisboa. (Academia Real das Sciencias de Lisboa, 1821)

Memorias da Academia Real das Sciencias de Lisboa - Academia Real das Sciencias de Lisboa. (Academia Real das Sciencias de Lisboa, 1825)

Memorias da Academia Real das Sciencias de Lisboa - Academia Real das Sciencias de Lisboa. (Academia Real das Sciencias de Lisboa, 1848)

Memorias de la Real Academia de Ciencias y Artes de Barcelona - Real Academia de Ciencias y Artes de Barcelona. (1892)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1918)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1929)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1940)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1952)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1959)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1960)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1966)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1972)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1975)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1976)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1978)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1980)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1982)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1983)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1993)

Memórias do Instituto de Butantan - Instituto Butantan (Instituto Soroterápico "Butantan", 1918)

Memórias do Museu Goeldi (Museu Paraense) de História Natural e Ethnographia (O Museu, 1896)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1906)

Memorie dell'Istituto geologico della R. Università di Padova - Università di Padova. Istituto geologico. (Società Cooperativa Tipografica, 1912)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1880)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1868)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1891)

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, 2012)

The Merck/Merial manual for pet health - Kahn, Cynthia M., (Merck & Co, 2007)

Merveilles de la nature : l'homme et les animaux, description populaire des races humaines et des règne animal - Brehm, Alfred Edmund, 1829 -1884 (J.-B. Baillière et Fils, 1878)

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

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

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1978)

Miscellaneous publications - University of Michigan. Museum of Zoology. (The University, 1916)

Mission scientifique au Mexique et dans l'Amérique Centrale : ouvrage publié par ordre de S.M. l'Empereur et par les soins du Ministre de l'instruction publique - Fournier, Eugène, 1834 -1884 (Imprimerie impériale, 1870)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1901)

Mitteilungen aus der zoologischen Sammlung des Museums für Naturkunde in Berlin - Museum für Naturkunde in Berlin. (In Kommission bei R. Friedländer, 1900)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1959)

Mitteilungen der Geographischen Gesellschaft und des Naturhistorischen Museums in Lübeck - Geographische Gesellschaft in Lübeck (Lübcke & Nöhring, 1908)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1915)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1875)

Modern biology - Moon, Truman Jesse, 1879 -1946 (H. Holt and company, 1947)

Monograph of the British aphides ... - Buckton, George Bowdler, 1817 -1905 (Printed for the Ray Society, 1883)

Monograph of the fossil Reptilia of the London clay, and of the Bracklesham and other Tertiary beds - Owen, Richard, 1804 -1892 (Printed for the Palaeontographical society, 1850)