A manual of the sub-kingdom Protozoa. With a general introduction on the principles of zoology - Greene, J. Reay, 1836 -1903 (Longmans, Green, Longman, Roberts, & Green, 1868)

A manual of zoology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1870)

A manual of zoology for the use of students : with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (William Blackwood, 1878)

El mar : acuario del mundo - Rioja Lo Bianco, Enrique 1895 - (Seneca, 1941)

Marvels of insect life a popular account of structure and habit - Step, Edward, 1855 -1931 (W. Briggs, 1915)

Marvels of insect life ; a popular account of structure and habit - Step, Edward, 1855 -1931 (R. M. McBride, 1916)

Marvels of the universe : a popular work on the marvels of the heavens, the earth, plant life, animal life, the mighty deep - Johnston, Harry, 1858 -1927 (Hutchinson & Co. (Publishers) Ltd., Paternoster Row, 1913)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1995)

The Maryland yellowthroat - Maryland Ornithological Society. (The Society, 2005)

The Maryland yellowthroat - Maryland Ornithological Society. (The Society, 2010)

Mass wasting in coastal Alaska - Swanston, Douglas N. (Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Institute of Northern Forestry, 1969)

The mast cells - Riley, James F. (E. & S. Livingstone, 1959)

Materials for the study of variation : treated with especial regard to discontinuity in the origin of species - Bateson, William, 1861 -1926 (Macmillan, 1894)

Materials for the study of variation treated with especial regard to discontinuity in the origin of species - Bateson, William, 1861 -1926 (Macmillan, 1894)

Materials for the study of variation treated with especial regard to discontinuity in the origin of species - Bateson, William, 1861 -1926 (Macmillan and co, 1894)

Die mathematisch-mechanische Betrachtung morphologisher Probleme der Biologie : eine kritische Studie - Driesch, Hans, 1867 -1941 (Gustav Fischer, 1891)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1892)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1895)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1900)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1883)

Mémoires de la Société impériale des sciences naturelles de Cherbourg - Société Imperiale des Sciences Naturelles de Cherbourg. (J.B. Baillière et fils, 1857)

Mémoires de la Société impériale des sciences naturelles de Cherbourg - Société Imperiale des Sciences Naturelles de Cherbourg. (J.B. Baillière et fils, 1855)

Mémoires de la Société impériale des sciences naturelles de Cherbourg - Société Imperiale des Sciences Naturelles de Cherbourg. (J.B. Baillière et fils, 1858)

Mémoires de la Société impériale des sciences naturelles de Cherbourg - Société Imperiale des Sciences Naturelles de Cherbourg. (J.B. Baillière et fils, 1864)

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

Métamorphoses mœurs et instincts des insectes (insectes, myriapodes, arachnides, crustacés) - Blanchard, Emile, 1819 -1900 (G. Baillière, 1868)

Mechanisch-physiologische Theorie der Abstammungslehre - Nägeli, Carl, 1817 -1891 (R. Oldenbourg, 1884)

Mechanismus und Physiologie der Geschlechtsbestimmung - Goldschmidt, Richard, 1878 -1958 (Borntraeger, 1920)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1881)

Mededeeling Afdeeling Handelsmuseum - Koloniaal Instituut (Netherlands). Afdeeling Handelsmuseum. (Het Instituut, 1914)

Die Medicin unter der Herrschaft des bacteriologischen Systems - Royal College of Physicians of Edinburgh. (O. Paul, 1895)

Medicinisch-pharmaceutische botanik zugleich als handbuch der systematischen botanik fur botaniker, arzte und apotheker - Luerssen, Christian, 1843 -1916 (H. Haessel, 1879)

Memórias do Instituto Oswaldo Cruz - Instituto Oswaldo Cruz (1914)

Memoir of Augustus De Morgan - De Morgan, Sophia Elizabeth, 1809 -1892 (Longmans, Green, 1882)

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, 1870)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1886)

Mémoires de l'Académie (royale) des sciences de l'Institut (imperial) de France - Académie royale des sciences (France) (1860)

Memoires de la Société de physique et d'histoire naturelle de Genève - Société de physique et d'histoire naturelle de Genève. (Georg [etc.], 1911)

Mémoires de la Société nationale des sciences naturelles et mathématiques de Cherbourg - Société nationale des sciences naturelles et mathématiques de Cherbourg. (J. B. Baillière, 1892)

Mémoires du Musée royal d'histoire naturelle de Belgique - Musée royal d'histoire naturelle de Belgique. (Le Musée, 1900)

Mémoires du Muséum national d'histoire naturelle Série C Sciences de la terre - Muséum national d'histoire naturelle (France) (Ed. du Muséum, 1968)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1958)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Editions du Museum, 1950)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1966)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1969)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1970)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1971)

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

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1976)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1988)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1991)

Mémoires du Muséum national d'histoire naturelle. Série B, Botanique - Muséum national d'histoire naturelle (France) (Ed. du Museum, 1955)

Memoirs and proceedings of the Manchester Literary & Philosophical Society - Manchester Literary; Philosophical Society. (The Society, 1891)

Memoirs and proceedings of the Manchester Literary & Philosophical Society - Manchester Literary; Philosophical Society. (The Society, 1910)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1968)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1993)

Memoirs of the Indian Museum - Indian Museum. (Manager of Publications [etc.]; Calcutta, Govt. of India Press, 1909)

Memoirs of the Indian Museum - Indian Museum. (Manager of Publications [etc.]; Calcutta, Govt. of India Press, 1921)

Memoirs of the Literary and Philosophical Society of Manchester - Manchester Literary; Philosophical Society. (The Society, 1868)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1871)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1876)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1882)

Memoirs of the Museum of Victoria - Museum of Victoria. (: The Museum of Victoria, 1988)

Memoirs of the National Museum of Victoria - National Museum of Victoria (National Museum of Victoria, 1977)

Memoirs of the National Museum of Victoria - National Museum of Victoria (National Museum of Victoria, 1978)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 1992)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 1995)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 1999)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 2008)

Memoirs of the Wistar Institute of Anatomy and Biology - Wistar Institute of Anatomy; Biology. ([s.n.], 1924)

Memoirs read before the Boston Society of Natural History - Boston Society of Natural History. ([Boston Society of Natural History], 1866)

Memorias - Academia Nacional de Ciencias Antonio Alzate, Mexico

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

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

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, 1902)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1889)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1908)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1896)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1903)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1914)

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, 1996)

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, 2000)

Menschenaffen (Anthropomorphae) : Studien über Entwickelung und Schädelbau - Selenka, Emil, 1842 -1902 (C.W. Kreidel, 1911)

Merveilles de la nature : les insectes, les myriopodes, les arachnides et les crustaces - Brehm, Alfred Edmund, 1829 -1884 (J.-B. Baillière et Fils, 49 rue Hautefeuille, près du boulevard Saint-Germain, 1882)

Métamorphoses moeurs et instincts des insectes (insectes, myriapodes, arachnides, crustacés) - Blanchard, Emile, 1819 -1900 (G. Baillier, 1877)

Metamorphoses of Lepidoptera from San Paulo, Brazil, in the Free Public Museum, Liverpool - Moore, Frederic, 1830 -1907 (s.n, 1882)

Methodology in mammalian genetics - Burdette, Walter J. (Holden-Day, 1963)

Meyers grosses konversations-lexikon. Ein nachschlagewerk des allgemeinen wissens. 2557142MC - Meyer, Hermann Julius, 1826 -1909 (Bibliographisches Institut, 1902)

Meyers Konversations-Lexikon : ein Nachschlagewerk des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Bibliographisches Institut, 1896)

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

Micro-organisms and fermentation - Jörgensen, Alfred, 1848 -1925 (Macmillan and co., limited, 1900)

Micro-organisms, with special reference to the etiology of the infective diseases - Cheyne, William Watson, Sir, 1852 -1932 (New Sydenham Society, 1890)

Micro-organisms with special reference to the etiology of the infective diseases - Cheyne, William Watson, Sir, 1852 -1932 (The New Sydenham society, 1890)

Micrographia : containing practical essays on reflecting, solar, oxy-hydrogen gas microscopes; micrometers; eye-pieces, &c. &c - Pritchard, Andrew, 1804 -1882 (Whitaker and Co, 1837)

The micrographic dictionary : a guide to the examination and investigation of the structure and nature of microscopic objects - Griffith, J. W. (John William) (John van Voorst, 1860)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1875)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1883)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Griffith, J. W. (John William) (John Van Voorst, 1856)

The microscope - Hogg, Jabez, 1817 -1899 (1869)

The microscope and its lessons. A story of the invisible world; with pictorial descriptions of its inhabitants - Crowther, James (G. Cauldwell, 1891)

The microscope and its lessons. A study of the invisible world; with pictorial descriptions of its inhabitants - Crowther, James (G. Cauldwell, 1891)