Memorias de la Sociedad Cubana de Historia Natural "Felipe Poey." - Museo Poey. (La Sociedad, 1917)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1935)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1939)

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

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1941)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1948)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1953)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1989)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1892)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1899)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1900)

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, 2006)

Metamorphoses of man and the lower animals - Quatrefages, A. de (Armand), 1810 -1892 (R. Hardwicke, 1864)

The micro-organisms of the soil - Russell, Edward J. Sir, (Edward John), 1872 -1965 (Longmans, Green, 1923)

Microbes & toxins - Scott, W. M (W. Heinemann, 1912)

Microbes & toxins - Broquet, Charles, 1876 -1964 (G. P. Putnam, 1912)

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 ([s.n, 1881)

The microscope : its history, construction, and application - Hogg, Jabez, 1817 -1899 (G. Routledge, 1867)

The microscope; its history, construction and application - Hogg, Jabez, 1817 -1899 (Routledge, 1867)

The microscope : its history, construction, and application ; being a familiar introduction to the use of the instrument and the study of microscopical science - Hogg, Jabez, 1817 -1899 (G. Routledge, 1858)

The microscope : its history, construction, and application, being a familiar introduction to the use of the instrument and the study of microscopical science - Hogg, Jabez, 1817 -1899 (H. Ingram, 1856)

The microscope : its history, construction, and application, being a familiar introduction to the use of the instrument, and the study of microscopial science - Hogg, Jabez, 1817 -1899 (George Routledge, 1867)

The microscope : its history, construction, and application, being a familiar introduction to the use of the instrument and the study of microscopical science - Hogg, Jabez, 1817 -1899 (G. Routledge and Sons, 1871)

The microscope: its history, construction, and application, being a familiar introduction to the use of the instrument and the study of microscopial science - Hogg, Jabez, 1817 -1899 (Routledge, Warnes, and Routledge, 1859)

The microscope, : its history, construction, and applications: being a familiar introduction to the use of the instrument, and the study of microsopical science - Hogg, Jabez, 1817 -1899 (G. Routledge, 1887)

The microscopic cabinet of select animated objects : with a description of the jewel and doublet microscope, test objects, &c. to which are subjoined, memoirs on the verification of microscopic phenomena, and an exact method of appreciating the quality of microscopes and engiscopes by C.R. Goring - Pritchard, Andrew, 1804 -1882 (Whittaker, Treacher, and Arnot, Ave-Maria-Lane, 1832)

The microscopic cabinet of select animated objects; with a description of the jewel and doublet microscope, test objects, &c - Pritchard, Andrew, 1804 -1882 (Whittaker, Treacher, and Arnot, 1832)

The microscopist : a compendium of microscopic science including the use of the microscope, mounting and preserving microscopic objects, the microscope in chemistry, biology, histology, botany, geology, pathology, etc - Wythe, J. H. (Joseph Henry), 1822 -1901 (P. Blakiston, Son & Co, 1883)

The microscopist : a manual of microscopy and compendium of the microscopic science : micro-minerology, micro-chemistry, biology, histology, and pathological histology - Wythe, J. H. (Joseph Henry), 1822 -1901 (Lindsay & Blakiston, 1877)

The microscopist : a manual of microscopy and compendium of the microscopic sciences - Wythe, J. H. (Joseph Henry), 1822 -1901 (Lindsay & Blakiston, 1880)

The microscopist; or, A complete manual on the use of the microscope ... - Wythe, J. H. (Joseph Henry), 1822 -1901 (Lindsay and Blakiston, 1877)

The microtomist's vade-mecum : a handbook of the methods of microscopic anatomy - Lee, Arthur Bolles, 1849 -1927 (P. Blakiston, Son & Co, 1896)

The microtomist's vade-mecum. A handbook of the methods of microscopic anatomy - Lee, Arthur Bolles, 1849 -1927 (J. & A. Churchill, 1893)

The microtomist's vade-mecum; a handbook of the methods of microscopic anatomy - Lee, Arthur Bolles, 1849 -1927 (Churchill, 1890)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1891)

The migrations of animals from sea to land - Pearse, A. S. (Arthur Sperry), 1877 -1956 (Duke university press, 1936)

Mind in the lower animals, in health and disease - Lindsay, W. Lauder (William Lauder), 1829 -1880 (D. Appleton and Company, 1880)

Mind in the lower animals in health and disease - Lindsay, W. Lauder (William Lauder), 1829 -1880 (C. K. Paul, 1879)

Minerals and geology of central Canada : comprising the provinces of Ontario and Quebec - Chapman, E. J. (Edward John), 1821 -1904 (Copp, Clark, 1888)

The minerals and geology of central Canada, comprising the provinces of Ontario and Quebec - Chapman, E. J. (Edward John), 1821 -1904 (The Copp, Clark company (limited), 1888)

Miscellanea entomologica; revue entomologique internationale - Union entomologique. (1895)

Miscellanea entomologica; revue entomologique internationale - Union entomologique. (1897)

Miscellaneous essays on economic entomology - Illinois State Entomologist. (H.W. Rokker, 1886)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1965)

Mission Pavie Indo-Chine, 1879-1895. Études diverses - Pavie, Auguste, 1847 -1925 (E. Leroux, 1898)

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, 1868)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1893)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1894)

Mitteilungen aus dem Zoologischen Museum in Berlin - Zoologisches Museum in Berlin. (In Kommission bei R. Friedländer, 1910)

Mitteilungen aus dem Zoologischen Museum in Berlin - Zoologisches Museum in Berlin. (In Kommission bei R. Friedländer, 1913)

Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1986)

Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1989)

Mitteilungen der Geographischen Gesellschaft und des Naturhistorischen Museums in Lübeck - Geographische Gesellschaft in Lübeck (Lübcke & Nöhring, 1890)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1973)

Mitteilungen der Schweizerischen Entomologischen Gesellschaft = Bulletin de la Société entomologique suisse - Schweizerische Naturforschende Gesellschaft. (Schweizerische Entomologische Gesellschaft, 1888)

Mitteilungen der Schweizerischen Entomologischen Gesellschaft = Bulletin de la Société entomologique suisse - Schweizerische Naturforschende Gesellschaft. (Schweizerische Entomologische Gesellschaft, 1893)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1889)

Mittheilungen von Forschungsreisenden und Gelehrten aus den deutschen Schutzgebieten : mit Benutzung amtlicher quellen (U. Usher, 1893)

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

Modern biology - Moon, Truman Jesse, 1879 -1946 (Holt, Rinehart and Winston, 1965)

Modern nature study : a first book for use in Canadian schools - Silcox, S. (Morang & Co, 1902)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1908)

A monograph of Christmas Island (Indian Ocean) - British Museum (Natural History). Department of Geology. (Printed by order of the Trustees, 1900)

Monograph of Halticidae in the collection of the British Museum. Physapodes and Oedipodes Part I - Clark, Hamlet, 1823 -1867 (Printed by order of the Trustees, 1860)

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

A monograph of the British fossil Crustacea, belonging to the order Merostomata - Woodward, Henry, 1832 -1921 (Printed for the Palæontographical Society, 1866)

Monograph of the Collembola and Thysanura - Lubbock, John, Sir, 1834 -1913 (Printed for the Ray Society, 1873)

A monograph of the fossil insects of the British coal measures - Bolton, Herbert, 1863 -1936 (Printed for the Palaeontographical society, 1921)

A monograph of the fossil insects of the British coal measures - Bolton, Herbert, 1863 -1936 (Printed for the Palaeontographical society, 1922)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1872)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1922)

Monographia anoplurorum Britanniae or An essay on the British species of parasitic insects belonging to the order of Anoplura of Leach, with the modern divisions of the general according to the views of Leach, Nitzsch, and Burmeister, with highly magnified figures of each species - Denny, Henry, 1803 -1871 (H. G. Bohn, 1842)

Monthly letter - United States. Bureau of Entomology. (1926)

Monthly letter - United States. Bureau of Entomology. (1929)

Monthly letter - United States. Bureau of Entomology. (1930)

Monthly letter - United States. Bureau of Entomology. (1931)

Monthly letter of the Bureau of Entomology - United States. Bureau of Entomology. (The Bureau, 1928)

Monthly letter of the Bureau of Entomology - United States. Bureau of Entomology. (The Bureau, 1930)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1869)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1870)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1871)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1877)

The mountain - Jackson, Robert Montgomery Smith, 1815 -1865 (J. B. Lippincott & Co, 1860)

Mrs. Loudon's Entertaining naturalist, being popular descriptors, tales, and anecdotes of more than five hundred animals - Dallas, W. S. (William Sweetland), 1824 -1890 (Bell & Daldy, 1867)

Museum bulletin - New York State Museum. (University of the State of New York, 1907)

Museum bulletin - New York State Museum. (University of the State of New York, 1909)

Museum bulletin - New York State Museum. (University of the State of New York, 1910)

The museum of natural history; being a popular account of the structure, habits, and classification of the various departments of the animal kingdom: quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (J. S. Virtue, 1877)

The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - White, Adam, 1817 -1879 (William MacKenzie, 1869)

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, 1912)

The Myriapoda of North America - Underwood, Lucien Marcus, 1853 -1907 (Govt. Print. Off, 1893)