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

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

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1954)

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, 1964)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1965)

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

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, 1990)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1991)

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

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

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

Memories of the months. Sixth series - Maxwell, Herbert, Sir, 1845 -1937 (E. Arnold, 1919)

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)

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

Microanatomical study on the eyes of the lone star tick and the screwworm fly with related electrophysiological studies - Phillis, William Avery, 1942 - (1975)

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

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 - Griffith, J. W. (John William) (John Van Voorst, 1856)

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)

Midden-Sumatra. Reizen en onderzoekingen der Sumatra-expeditie, uitgerust door het Aardrijkskundig genootschap, 1877-1879, beschreven door de leden der expeditie, onder toezicht van Prof. P.J. Veth - Veth, Pieter Johannes, 1814 -1895 (E.J. Brill, 1892)

Midden-Sumatra. Reizen en onderzoekingen der Sumatra-expeditie, uitgerust door het Aardrijkskundig genootschap, 1877-1879, beschreven door de leden der expeditie, onder toezicht van Prof. P.J. Veth - Veth, Pieter Johannes, 1814 -1895 (E. J. Brill, 1881)

Mind in animals - Besant, Annie, 1847 -1933 (Freethought pub. co, 1880)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1963)

Mission du Service Geographique de l'Armée pour la mesure d'un arc de méridien équatorial en Amérique du Sud sous le contrôle scientifique de l'Académie des Sciences, 1899-1906 - France. (Gauthier-Villars, Imprimeur Libraire du Bureau des Longitudes, de l'Ecole Polytechnique, 1913)

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, 1895)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1896)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1877)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1881)

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

Moluscos - Gay, Claudio, 1800 -1873 (1854)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1878)

Monographia Aranearum = Monographie der Spinnen - Hahn, Carl Wilhelm, 1786 -1835 (Lechner, 1820)

Monographie der Spinnen - Hahn, Carl Wilhelm, 1786 -1835 ([s.n.], 1820)

Monographie des trachydérides de la famille des longicornes - Davesne, 19th cent - (Arthus Bertrand, 1836)

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

More hunting wasps. Translated by Alexander Teixeira de Mattos - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead, 1921)

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

Mr. Mygale's hobby; a story about spiders - Steele, Francesca M. (Francesca Maria) (Religious Tract Society, 1889)

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)

Narrative of the surveying voyages of His Majesty's Ships Adventure and Beagle between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle's circumnavigation of the globe - Darwin, Charles, 1809 -1882 (Henry Colburn, 1839)

Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle between the years 1826 and 1836 : describing their examination of the southern shores of South America and the Beagle's circumnavigation of the globe : in three volumes - Darwin, Charles, 1809 -1882 (Henry Colburn, 1839)

Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle's circumnavigation of the globe - Darwin, Charles, 1809 -1882 (H. Colburn, 1839)

Narrative of the voyage of H. M. S. Samarang, during the years 1843-46; employed surveying the islands of the Eastern archipelago; accompanied by a brief vocabulary of the principal languages... - Belcher, Edward, Sir, 1799 -1877 (Reeve, Benham, and Reeve, 1848)

Narrative of a voyage to the Polar Sea during 1875-6 in H.M. ships 'Alert' and 'Discovery' - Nares, George S. Sir (George Strong), 1831 -1915 (S. Low, Marston, Searle, & Rivington, 1878)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1907)

Natural history - Bernard, Henry Meyners, 1853 -1909 (D. Appleton and company, 1897)

Natural history - American Museum of Natural History (American Museum of Natural History, 1921)

Natural history - Lydekker, Richard, 1849 -1915 (Hutchinson, 1897)

Natural history of animals - Tenney, Sanborn, 1827 -1877 (American book company, 1895)

Natural history of animals - Tenney, Sanborn, 1827 -1877 (American book Co, 1895)

Natural history of animals : Containing brief descriptions of the animals figured on Tenney's Natural history tablets, but complete without the tablets - Tenney, Sanborn, 1827 -1877 (C. Scribner & co, 1868)

Natural history of animals. Containing brief descriptions of the animals figured on Tenney's Natural history tablets, but complete without the tablets - Tenney, Sanborn, 1827 -1877 (C. Scribner & co, 1866)

Natural history of animals. Containing brief descriptions of the animals figured on Tenney's Natural history tablets, but complete without the tablets - Tenney, Sanborn, 1827 -1877 (Scribner, Armstrong, 1875)

The natural history of animals: the animal life of the world in its various aspects and relations - Ainsworth-Davis, J. R. (James Richard), 1861 -1934 (The Gresham Publishing Company, 1903)

Natural history of insects : comprising their architecture, transformations, senses, food, habits–collection, preservation and arrangement (Lilly, Wait, Colman, and Holden, 1833)

The natural history of Juan Fernandez and Easter Island - Skottsberg, Carl, 1880 -1963 (Almqvist & Wiksells Boktryckeri, 1920)

The Natural history of Juan Fernandez and Easter Island - Skottsberg, Carl, 1880 -1963 (Almqvist & Wiksells Boktryckeri, 1956)

The natural history of Juan Fernandez and Easter Island - Skottsberg, Carl, 1880 -1963 (Almqvist & Wiksells Boktryckeri, 1924)

Natural history of the animal kingdom for the use of young people : in three parts, comprising I. Mammalia : II. Birds : Part III. Reptiles, amphibia, fishes, insects, worms, molluscs, zoophytes, &c. : with 91 coloured plates, including about 850 figures, and numerous additional illustrations in the text - Kirby, W. F. (William Forsell), 1844 -1912 (E. & J.B. Young and Co, 1889)

The Natural History of the Scarborough district - Rimington, F. C. (Scarborough Field Naturalists' Society, 1956)

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

Natural science (Macmillan & Co, 1895)

Natural science (Macmillan & Co, 1896)

Natural science : a monthly review of scientific progress (Macmillan and Company [etc.], 1896)

Natural selection and tropical nature - Wallace, Alfred Russel, 1823 -1913 (Macmillan and co, 1891)

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